Lexmark MB790MFP, MB780, MPS5500 Service Manual

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MB780/MB790MFP

MPS5500 Series MFP Service Manual

020112B

Oki Data CONFIDENTIAL

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Oki Data America's, Inc. ("Oki Data"), authorizes you to view, copy, and print documents published by Oki Data for noncommercial use within your organization only. In consideration of this authorization, you agree and acknowledge that any copy of these documents shall retain all copyright and proprietary rights contained herein. Each document published by Oki Data may contain additional copyright information and proprietary notification relating to that individual document.

Nothing contained herein shall be construed as conferring by estoppel, implication or otherwise any license or right under any patent or trademark of Oki Data, Oki Electric Industry Co., Ltd. ("Oki Electric"), or any third party. Except as provided above nothing contained herein shall be construed as conferring any license or right under any Oki Data copyright.

Oki Data has taken care to insure that the information which follows is complete, accurate and up-to-date. However, Oki Data assumes no responsibility for errors or omissions which may occur. All the information provided is subj ect to change from time to time at the sole discretion of Oki Data.

All publications may include technical inaccuracies or typographical errors. We reserve the right to make periodic changes, additions, and deletions to publications without notice.

The most up-to-date drivers and manuals are available from the web site:

http://www.okiprintingsolutions.com

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Table of contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv

Notices and safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xvii

Laser notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii

Lithium warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii-xxiii

Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxiii

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvi

Navigation buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii-xxvi

Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xxvii

General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Maintenance approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

Printer overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Printer configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Basic models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Available internal options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Media handling options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

Supported paper sizes, types, and weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Paper sizes supported by the printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Paper types and weights supported by the printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Paper types and weights supported by the output bins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

Printer configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

Basic models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-7

Tools required for service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-8

Acronyms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-9

Diagnostic information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

Confirm the installation status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

Power-on Reset sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

Entering Diagnostics Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

User attendance messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Error code table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 -11

Service checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-108

Sensor (input) service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-108

Sensor (fuser output) service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-108

Sensor (narrow media) service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-109

Sensor (duplex input) service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-109

Sensor (duplex input) service check (external duplex only) . . . . . . . . . . . . . . . . . . . . . . . . . . .2-110

Sensor (duplex exit) service check (external duplex only) . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-110

Sensor (pass through) service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-110

Sensor (envelope feeder empty) service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-111

Sensor (ADF top door interlock) service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-111

Switch (ADF closed interlock) jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-112

Sensor (ADF sheet through) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-113

Sensor (ADF sheet through) late jam service check 290.01 . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-114

Sensor (ADF 1st scan) late jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-115

Sensor (ADF sheet through) lingering jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-116

Sensor (1st scan) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-118

Sensor (2nd scan) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-119

Sensor (2nd scan) lingering jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-119

Sensor (ADF media exit) late jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-120

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ADF top door open jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-122

Media missing jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-122

Sensor (ADF media exit) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-123

Sensor (ADF media exit) late jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-124

Sensor (ADF media exit) lingering jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-126

Sensor (input) late jam service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-128

Sensor (input) lingering jam service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-130

Sensor (input) early jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-131

Sensor (input) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-132

Sensor (fuser output) late jam service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-133

Sensor (fuser output) lingering jam service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-134

Sensor (fuser output) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-136

Sensor (narrow media) late jam service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-136

Sensor (narrow media) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-137

Sensor (duplex input) late jam service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-138

Sensor (duplex input) lingering jam service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-140

Sensor (duplex input) static jam service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-141

Sensor (pass through) late jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-142

Sensor (pass through) lingering jam service check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-143

Sensor (pass through) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-144

Sensor (stapler pass through) late jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-145

Sensor (stapler pass through) lingering jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-145

Sensor (stapler pass through) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-146

Sensor (output pass through) late jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-146

Sensor (output pass through) lingering jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-147

Sensor (output pass through) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-147

Sensor (mailbox empty) late jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-148

Sensor (mailbox empty) lingering jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-148

Sensor (mailbox empty) static jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-149

Sensor (toner empty) service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-150

Sensor (scanner HP) service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-150

Sensor (ADF 2nd scan) late jam service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-150

NVRAM mismatch failure (950.00 through 950.29) service check . . . . . . . . . . . . . . . . . . . . . . 2-151

Image quality trouble . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-152

Printer Related Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-152

Image quality symptoms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-152

Image Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-153

Faint print (Low contrast) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-153

Blank print (no print) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-155

Solid black . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-157

Vertical lines and bands (process direction) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-158

Horizontal white stripes or bands (side to side direction) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-159

Vertical stripes (process direction) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-160

Horizontal stripes (side to side direction) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-161

Partial lack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-163

Spots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-164

After image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-166

Background (fog) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-167

Skew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-168

Media damage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-169

No fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-171

ADF & Scanner Related Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-172

Image quality symptoms: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

ADF & Scanner I

mage Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-173

Dark image quality (using ADF or Scanner) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-173

Vertical lines (process direction using the ADF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-174

Spots (using flatbed scanner) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-175

Skew (using ADF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-177

Media damage (using ADF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-178

Table of contents v

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Network service check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-179

Diagnostic aids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Understanding the printer control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Understanding the home screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-2

Using the touch-screen buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Sample touch screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Other touch-screen buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5

Accessing service menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-7

Diagnostics Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

Entering Diagnostics Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

Available tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-8

Registration (printer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-11

Quick Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12

PRINT TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-12

Input source tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13

Printing Quality Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-13

HARDWARE TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14

Panel Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14

Button Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-14

DRAM Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15

CACHE Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-15

USB HS Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16

DUPLEX TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16

Quick Test (duplex) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-16

Top Margin (duplex) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Sensor Test (duplex) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Motor Test (duplex) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-17

Duplex Feed 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

Duplex Feed 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18

INPUT TRAY TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19

Feed Tests (input tray) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19

Sensor Test (input tray) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-19

OUTPUT BIN TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

Feed Tests (output bins) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

Sensor Test (standard output bin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

BASE SENSOR TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-20

DEVICE TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Quick Disk Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

Disk Test/Clean . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21

PRINTER SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Printed Page Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Permanent Page Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Engine Settings 1 through 16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Model Name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-22

Configuration ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Edge to Edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

Enable Edge to Edge Copy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-23

EP SETUP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Defaults

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Fuser Temperature (Fuser Temp) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -24

Fuser Page Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Warm Up Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

Print Contrast . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

Charge Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

Gap Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-25

. . . . . . . . . .3-24

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Auto Dark Adjust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

REPORTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Menu Settings Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

EVENT LOG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Display Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Print Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

Clear Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-26

SCANNER TESTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Back Side Scan Uniformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

ASIC Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Feed Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Sensor Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27

Configuration menu (CONFIG MENU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Entering Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Available menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-28

Maintenance Counter Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

Reset Maintenance Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29

USB Scan to Local . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Print Quality Pages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30

Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Menu Settings Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Event Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

SIZE SENSING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31

Panel Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

PPDS Emulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-32

Factory Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Energy Conserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-33

Min Copy Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

NumPad Job Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Format Fax Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

Fax Storage Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

ADF Edge Erase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-34

FB Edge Erase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35

Scanner Manual Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35

Disable Scanner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Paper Prompts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Envelope Prompts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-36

Action for Prompts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37

Jobs On Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Disk Encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-38

Wipe Disk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Font Sharpening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

Require Standby . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39

LES Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Key Repeat Initial Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Key Repeat Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Wiper Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Clear Custom Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40

Exit Configuration Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41

. 3-42

Printer configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . .

Basic models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-42

Printer theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43

Models MB780 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-43

Model MB790 paper path rolls and sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

Functions of main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

Media tray assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-44

Rear media guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Side guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

Wear strips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45

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Media tray assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-46

Detection of media size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-47

Pick arm assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-47

Switch (media size) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-47

Sensor (media empty) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-47

Sensor (media low) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-48

Multi-purpose feeder (MPF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-48

MPF feed roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-48

MPF pick solenoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-48

Sensor (MPF media empty) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-49

Supported paper sizes, types, and weights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-49

Paper sizes supported by the printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-49

Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-51

Sensor (input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-51

Alignment assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-51

Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-52

Transfer roll assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-52

Polygon printhead assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-53

Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-54

Fuser components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-55

Heat roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-55

Pressure roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-56

Heater lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-56

Thermal cutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-56

Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-56

Sensor (fuser output) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-56

Sensor (narrow media) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-56

Fuser unit assembly (type 1 and type 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-57

Type 1 fuser unit assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-57

Type 2 fuser unit assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-57

Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-58

Sensor (standard bin full) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-58

Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-58

Main drive motor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-58

Redrive motor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-59

Electrical components and controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-59

Switch (printer front door interlock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-59

Main cooling fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-60

Print cartridge cooling fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-60

Duplex cooling fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-60

LVPS card assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-60

LVPS cooling fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 -60

HVPS card assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-60

System card assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-61

Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

thead contro

Prin

l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-61

. . . . . . . . . . . .3-61

Rotation of printhead motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-61

Determination of printhead ready . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-61

Printhead reference value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-61

Fuser control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-61

Fuser control method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-61

Fuser lamp on/off control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-61

Fuser warm-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-62

Xerographic and print cartridge components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-62

Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-63

Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-63

Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-64

Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-65

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-66

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Auto density sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-67

Document scanning at ADF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68

Document scanning at platen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68

Names and functions of components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68

Scanner unit assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68

Sensor (FB length APS 1), Sensor (FB length APS 2), Sensor (FB length APS 3) . . . . . . . . . 3-68

Switch (ADF closed interlock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68

Scanner drive motor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-68

Sensor (FB scanner HP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69

Scanner exposure lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69

Scanner controller card assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69

Scanner cooling fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69

Setting a document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69

Preparation for feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-69

Simplex and duplex document feed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70

Duplex document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70

Names and functions of components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

ADF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

Sensor (ADF long media) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

Sensor (ADF width 1), Sensor (ADF width 2), Sensor (ADF width 3), Sensor (ADF width 3) . . 3-71

Sensor (ADF document set) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

ADF Document Set LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

Switch (ADF top door interlock) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

ADF controller card assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-71

Sensor (ADF sheet through) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72

Sensor (ADF 1st scan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72

Sensor (2nd scan) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72

Sensor (ADF media exit) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72

ADF feed motor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72

ADF transport motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72

ADF pick solenoid assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72

High Capacity Input Tray (HCIT) tray assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74

250-sheet/550-sheet tray assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75

Media size sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75

Media level sensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-76

Pick motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-76

Sensor A & B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-76

Sensor (pass-thru) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-76

Media transport path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-78

The following is a cross section of the printer and the tandem tray module, showing the main

components directly associated with the media path and transport. . . . . . . . . . . . . . . . . . . . . 3-78

Model MB780 paper path rolls and sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-78

Model MB790 paper path rolls and sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79

Functions of main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79

Media tray assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79

Rear media guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79

Side guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ear strips

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80

. . . . . . . 3-79

Media tray assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80

Detection of media size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80

Pick arm assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-80

Switch (media size) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81

Sensor (media empty) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81

Sensor (media low) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81

Duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-82

Functions of main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-82

Sensor (duplex input) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-82

Duplex drive motor assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-82

Paper jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-83

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Understanding jam numbers and loca tions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-83

200 and 203 paper jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-83

202 paper jam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-85

230–239 paper jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-85

240–245 paper jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-87

250 paper jam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-88

260 paper jam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-88

270–279 paper jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-89

28X staple jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-89

290–294 paper jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-91

Adjusting skew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-93

Flatbed scanner skew adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-94

ADF skew adjustment (via ADF document tray) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-94

ADF skew adjustment (Via duplex CCD assembly) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-96

Media squareness check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-98

Print skew correction procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-101

Copy skew correction procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-103

Security Reset Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-105

Security Reset Jumper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-105

Printer skew specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-107

Abnormal skew printer correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-107

Print Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-108

Print Position Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-108

Repair information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1

Handling ESD-sensitive parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Polygon printhead mechanical registration adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Alignment assembly adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

Fuser solenoid adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Gap adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Removal procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Before starting service work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Charge roll assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

Duplex assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

Duplex cooling fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Duplex drive motor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

Duplex input sensor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

Duplex guide assembly, front removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

Media turn guide removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12

Fuser access door assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12

Main cooling fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14

Fuser drive release linkage removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15

Fuser unit assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-15

Fuser wiper cover assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16

HVPS card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17

Inner deflector removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-17

Option drive shaft removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18

Main drive motor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-20

Alignment assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-21

Media out actuator removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-23

Media support removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-23

Tray roller catch assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-24

MPF cam gear removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-24

MPF lift plate assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-24

MPF media out actuator removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-25

MPF pick roll assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-26

MPF pick solenoid assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-26

Pick arm assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-29

x Service Manual

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Pick roll assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31

Print cartridge cooling fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-31

Print cartridge clamp assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-32

Print cartridge ID connector assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-33

Printhead assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-34

Connection access cover, rear removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

Door assembly, rear removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

Duplex guide assembly, rear removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

Cover assembly, rear lower (MB780 and MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38

Redrive motor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-38

Sensor (duplex input) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41

Sensor (media low) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41

Sensor (media empty) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41

Sensor (toner empty) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41

Sensor (input) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42

Sensor shield assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-42

Standard bin actuator assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44

Sensor (standard bin exit) actuator removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44

Sensor (toner density) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

Switch (media size) assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

LVPS card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-47

Access door removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49

System card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50

Hard drive removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-53

Hard drive cooling fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-54

Fax card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-55

Transfer roll assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-56

Transfer roll bracket assembly, left removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57

Transfer roll bracket assembly, right removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-57

Transfer deflector removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-59

Redrive assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60

ADF feed / pick roll assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-61

ADF separator roll removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62

ADF separator torque limiter assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63

ADF cover, front removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-64

ADF cover, rear removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65

ADF document tray assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65

ADF top door assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4- 66

ADF controller card removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67

ADF platen cushion removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68

ADF lower door assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68

ADF duplex CCD scan glass assembly removal (MB780 and MB790) . . . . . . . . . . . . . . . . . . . . 4-69

ADF duplex CCD assembly removal (MB780 and MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-70

ADF pinch roll assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-72

ADF turn guide removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-73

ADF media pinch pad assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-74

Sensor (ADF media exit) fan bracket assembly removal (MB780 and MB790) . . . . . . . . . . . . . 4-76

ADF transport drive motor bracket assembly w/cable removal . . . . . . . . . . . . . . . . . . . . . . . . . 4-77

ADF feed drive motor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-77

ADF pick roll position cam assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-79

ADF solenoid assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-80

Sensor (ADF top door interlock) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Sen

sor (ADF

lower door interlock) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-81

-80

Sensor (ADF 2nd scan) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-81

Sensor (ADF 1st scan) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-82

Sensor (ADF sheet through) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-82

Sensor (ADF document set) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-83

Switch (ADF closed interlock) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-84

ADF unit assembly removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85

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ADF unit assembly removal (model MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-85

ADF left hinge removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-86

ADF right hinge removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-87

Cover, left rear corner removal (model MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-88

Cover, right rear corner removal (model MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-88

Sensor (standard bin exit) actuator assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-89

Scanner CCD assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-91

Scanner reference LED cable assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-93

Scanner unit assembly removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-94

Scanner unit assembly removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-96

MPF tray door assembly removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-97

MPF tray door assembly removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-99

Fuser access assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-101

Output cover assembly removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-101

Output cover assembly removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-102

Redrive assembly removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-103

Redrive assembly removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-103

Laser cover removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-104

Laser cover removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-106

Standard output bin LED assembly removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-108

MPF media guide assembly removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-108

Operator panel assembly removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-109

Card reader assembly removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-111

USB cable removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-114

Operator panel door assembly removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-115

Operator panel cover latch assembly removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-119

Print cartridge cover assembly removal (model MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-120

Side cover, right removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-121

Side cover, right removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-122

Side cover, left removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-123

Side cover, left removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-123

Door assembly, rear removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-124

Cover, rear lower removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-125

Scanner support cover, right rear removal (model MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-127

Scanner support inner cover, right removal (model MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . .4-128

Scanner support cover, right removal (model MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-129

Scanner controller card assembly removal (model MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-129

Scanner controller card assembly removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-132

Scanner cover, rear removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-133

Scanner cover, left removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-134

Scanner cover, left removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-135

Scanner cover, right removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-136

Scanner cover, right removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-136

Scanner cover, front removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-137

Scanner cover, front removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-137

Scanner platen glass cover assembly removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-139

Scanner platen glass cover assembly removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-140

Scanner support platform removal (MB780) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-141

Carriage belt tensioner assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-143

Carriage drive motor assembly with cable removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-144

Carriage belt removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-145

Scanner / ADF duplex CCD exposure lamp removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-147

Scanner interface card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-148

Scanner cooling fan filter removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-149

Scanner cooling fan removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-149

Scanner support cover, left rear removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-150

Scanner support cover, left front removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-151

Scanner support cover, left removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-152

Scanner support inner cover, left removal (MB790) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-152

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Sensor (platen glass length) assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-153

Sensor (scanner HP) assembly w/bracket removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-154

LVPS cooling fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-154

Option removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-156

High capacity input tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-156

High capacity input tray (HCIT) media tray assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . 4-157

High capacity input tray (HCIT) tray cover, front removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-158

High capacity input tray (HCIT) cover, rear removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-160

High capacity input tray (HCIT) cover, right removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-162

High capacity input tray (HCIT) cover, left removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-164

High capacity input tray (HCIT) anti-tip latch assembly removal . . . . . . . . . . . . . . . . . . . . . . . 4-165

High capacity input tray (HCIT) drawer slide assembly removal . . . . . . . . . . . . . . . . . . . . . . . 4-167

High capacity input tray (HCIT) tray lift drive motor assembly removal . . . . . . . . . . . . . . . . . 4-167

High capacity input tray (HCIT) controller card assembly removal . . . . . . . . . . . . . . . . . . . . . 4-169

High capacity input tray (HCIT) media size actuator assembly removal . . . . . . . . . . . . . . . . . 4-170

Sensor (HCIT tray raised HP) with cable assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-172

Sensor (HCIT pass through) with cable removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-173

High capacity input tray (HCIT) pick arm bracket assembly removal . . . . . . . . . . . . . . . . . . . 4-175

High capacity input tray (HCIT) tray closed latch with spring removal . . . . . . . . . . . . . . . . . . 4-177

250-sheet media tray assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-178

250-sheet option drawer assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-178

250-sheet pick arm bracket assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-179

250-sheet media out actuator removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-180

Anti-tip latch assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-180

250-sheet frame assembly removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-181

Sensor (pass through) with cable removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-181

250-sheet controller card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-184

Media size actuator removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-186

Media tray catch spring removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-187

Tray roller catch assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-188

550-sheet option tray assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-190

550-sheet media tray assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-191

550-sheet option drawer assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-191

550-sheet pick arm bracket assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-192

550-sheet bellcrank recoil spring removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-193

Anti-tip latch assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-194

550-sheet frame assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-195

Upper interface cable assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-197

Lower interface cable assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-197

Sensor (pass through) with cable removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-198

550-sheet controller card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-198

Media size actuator removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-200

550-sheet option drive shaft with spring removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-201

Media tray catch spring removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-202

Media tray roller catch assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-202

MFP stapler assembly rear door assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-203

MFP stapler assembly right cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-203

MFP stapler assembly left cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-204

MFP stapler assembly top cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-204

MFP stapler assembly handle cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-205

MFP stapler assembly LED sensor cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-206

MFP stapler assembly sensor (finisher media bin present) removal . . . . . . . . . . . . . . . . . . . . 4-208

MFP stapler assembly standard output bin LED and LED clear lens removal . . . . . . . . . . . . 4-208

MFP stapler assembly tamper drive belt removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-209

MFP stapler assembly tamper drive motor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . 4-210

MFP stap

ler assembly med

ia stack flap and media stack flap actuator removal . . . . . . . . . . 4-210

MFP stapler assembly stapler unit assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-212

Stapler/stacker controller card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-213

MFP stapler assembly paddle drive motor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . 4-213

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MFP stapler assembly sensor (media stack) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-215

MFP stapler assembly sensor (paddle HP) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-215

MFP stapler assembly sensor (stapler access door interlock) removal . . . . . . . . . . . . . . . . . .4-216

MFP stapler assembly sensor (tamper HP left and right) removal . . . . . . . . . . . . . . . . . . . . . .4-217

MFP stapler assembly sensor (bin full send) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-217

MFP stapler assembly sensor (bin full receive) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-218

MFP stapler assembly sensor (media in stapler) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-219

MFP stapler assembly sensor (deflector HP) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-220

4-bin mailbox assembly left cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-221

4-bin mailbox assembly controller card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-221

4-bin mailbox assembly sensor (media bin full) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-222

4-bin mailbox assembly sensor (deflector gate HP) removal . . . . . . . . . . . . . . . . . . . . . . . . . . .4-223

4-bin mailbox assembly rear door assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-224

4-bin mailbox assembly right cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-225

4-bin mailbox assembly LED card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-225

4-bin mailbox assembly top cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-226

4-bin mailbox assembly deflector gate solenoid removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-227

4-bin mailbox assembly transport solenoid removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-228

4-bin mailbox assembly spring removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-229

4-bin mailbox assembly deflector gate (bin 1 through 3) removal . . . . . . . . . . . . . . . . . . . . . . .4-230

4-bin mailbox assembly deflector gate (bin 4) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-231

4-bin mailbox assembly sensor (pass through) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-232

4-bin mailbox assembly sensor (mailbox empty) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-233

4-bin mailbox assembly standard output bin LED removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-234

4-bin mailbox assembly LED clear lens removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-236

4-bin mailbox assembly media bin full actuator removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-236

Offset stacker rear door assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-237

Offset stacker right cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-237

Offset stacker left cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-238

Offset stacker top cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-238

Offset stacker handle cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-239

Offset stacker LED sensor cover removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-240

Offset stacker sensor (finisher media bin present) removal . . . . . . . . . . . . . . . . . . . . . . . . . . .4-242

Offset stacker standard output bin LED and LED clear lens removal . . . . . . . . . . . . . . . . . . . .4-242

Offset stacker tamper drive belt rem o val . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-243

Offset stacker tamper drive motor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-244

Offset stacker media stack flap and media stack flap actuator removal . . . . . . . . . . . . . . . . . . 4-244

Stapler/stacker controller card assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-246

Offset stacker paddle drive motor assembly removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-246

Offset stacker sensor (media stack) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-247

Offset stacker sensor (paddle HP) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-248

Offset stacker sensor (tamper HP left and right) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-249

Offset stacker sensor (bin full send) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-249

Offset stacker sensor (bin full receive) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-250

Offset stacker sensor (deflector HP) removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-251

Connector locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1

Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Sensors–ADF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Sensors–Flatbed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Safety inspection guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Lubrication specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Individual maintenance part expected life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Scheduled maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Maintenance kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Maintaining the printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Cleaning the exterior of the printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

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Cleaning the scanner glass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

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Notices and safety information

The following laser notice labels may be affixed to this printer.

Laser no tice

The printer is certified in the U.S. to conform to the requirements of DHHS 21 CFR Subchapter J for Class I (1) laser products, and elsewhere is certified as a Class I laser product conforming to the requirements of IEC 60825-1.

Class I laser products are not considered to be hazardous. The printer contains internally a Class IIIb (3b) laser that is nomin all y a 5 milliwatt gall ium arsenide laser operating in the wavelength region of 770-795 nanometers. The laser system and printer are designed so there is never any human access to laser radiati on above a Class I level during normal operation, user maintenance, or prescribed service condition.

Laser

Der Drucker erfüllt gemäß amt li cher Bestätigung der USA die Anforder ungen der Bestimmung DHHS (Department of Health and Human Services) 21 CFR Teil J für Laserprodukte der Klasse I (1). In anderen Ländern gilt der Drucker als Laserprodukt der Klasse I, der die Anforderungen der IEC (International Electrotechnical Commission) 60825-1 gemäß amtlicher Bestäti gung erfüllt.

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Laserprodukte der Klasse I gelten als unsc hädlich. Im Inneren des Drucker s befindet sich ein Laser der Kl asse IIIb (3b), bei dem es sich um einen Galliumarsenlaser mit 5 Milliwatt handelt, der Wellen der Länge 770-795 Nanometer ausstrahlt. Das Lasersystem und der Drucker sind so konzipiert, daß im Normalbetrieb, bei der Wartung durch den Benutzer oder bei ordnungsgemäßer W art ung durch den Kundendienst Laserbestrahlung, die Klasse I übersteigen würde, Menschen keinesfalls erreicht.

Avis relatif à l’utilisation de laser

Pour les Etats-Unis: cette imprimante est certifi ée conforme aux provisions DHHS 21 CFR alinéa J concernant les produits laser de Classe I (1). Pour les autres pays: cette imprimante répond aux normes IEC 60825-1 relatives aux produits laser de Classe I.

Les produits laser de Classe I sont considérés comme des produits non dangereux. Cette imprimante est équipée d’un l aser de Classe IIIb (3b) (arséniure de gall ium d’une puissance nominale de 5 milliwatts) émettant sur des longueurs d’onde comprises entre 770 et 795 nanom ètr es. L’imprimante et son système laser sont conçus pour impossible, dans des conditions normales d’utilisation, d’entretien par l’utilisateur ou de révision, l’exposition à des rayonnements laser supérieurs à des rayonnements de Classe I .

Avvertenze sui prodotti laser

Questa stampant e è certificata neg li Stati Uniti per essere conforme ai requ isi ti del DHHS 21 CFR Sottocapitolo J per i prodotti laser di classe 1 ed è certificata negl i altri Paesi come prodott o laser di classe 1 conforme ai requisiti del la norma CEI 60825-1.

I prodotti laser di classe non sono consi derat i peri colosi . La stampant e contie ne al suo int erno un laser di classe IIIb (3b) all’arseniuro di gallio dell a potenza di 5mW che opera sulla lunghezza d’onda compresa tra 770 e 795 nanometri. Il sistema laser e la stampante sono stati progetta ti in modo tale che le persone a contatto con la stampante, durante il normale funzionamento, le operazioni di servizio o quelle di assistenza tecnica, non ricevano radi azioni laser superiori al livello della cl asse 1.

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Avisos sobre el láser

Se certifica que, en los EE.UU., esta impresora cumple los requisitos para los productos láser de Clase I (1) establecidos en el su bcapítulo J de la norma CFR 21 del DHHS (Departamento de Sanidad y Servici os) y, en los demás países, reúne todas las condiciones expuestas en la norma IEC 60825-1 para productos láser de Clase I (1).

Los productos lás er de Clase I no se consideran peligr osos. La impresora contiene en su interior un láser de Clase IIIb (3b) de arseniur o de galio de funcionamiento nomi nal a 5 milivatios en una longitud de onda de 770 a 795 nanómetros. El sistema láser y la impresora están diseñados de forma que ninguna persona pueda verse afectada por ni ngún ti po de radiación láser superi or al nivel de la Clase I durante su uso nor ma l, el mantenimiento realizado por el usuario o cualquier otra situación de servicio técnico.

Declaração sobre Laser

A impressora e stá cer tific ada n os E.U.A . em conf ormidade com os r equisi tos da regu lamentaç ão DHHS 21 CFR Subcapítulo J para a Clas se I (1) de produt os laser . Em outr os locai s, est á cer tific ada co mo um produ to laser da Classe I, em conformidade com os requisitos da norma IEC 60825-1.

Os produtos lase r da Class e I não são cons id erados per igosos . Inte rnamen te, a impress ora contém um produ to laser da Classe IIIb (3b), designado laser de arseneto de potássio, de 5 milliw atts ,operando numa faixa de comprimento de onda entre 770 e 795 nanómetros . O sistema e a impressora laser foram concebidos de forma a nunca existir qualquer possiblidade de acesso humano a radiação laser superior a um nível de Classe I durante a operação nor m al, a manutenção feita pelo utilizador ou condições de assistência prescritas.

Laserinformatie

De printer voldoet aan de eisen die gesteld worden aan een laserprodukt van klasse I. Voor de Verenigde Staten zijn deze eisen vastgelegd in DHHS 21 CFR Subchapter J, voor andere landen in IEC 60825-1.

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Laserprodukten van klasse I worden niet als ongevaarlijk aangemerkt. De printer is voorzien van een laser van klasse IIIb (3b), dat wil zeggen een gallium arsenide-laser van 5 milliwatt met een golflengte van 770-795 nanometer. Het laser gedee lte en de print er zijn zo ontworp en dat bij normaal gebr uik, bij onderhoud of reparat ie conform de voorschriften, nooit blootstelling mogelij k is aan laserstraling boven een niveau zoals voorgeschr even is voor klasse 1.

Lasermeddelelse

Printeren er godkendt som et Klasse I-laserprodukt, i overenstemmelse med kravene i IEC 60825-1. Klasse I-laserprodukter betragtes ikke som farlige. Printeren indeholder internt en Klasse IIIB (3b)-laser, der

nominelt er en 5 milli watt galliumarsenid l aser, som arbejder på bølgelæ ngdeområdet 770-795 nanome ter . Lasersystemet og printeren er udformet således, at mennesker aldrig udsættes for en laserstråling over Klasse I-niveau ved nor m al dr if t, brugervedligeholdelse eller obli gatoriske servicebetingelser.

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Laserilmoitus

Tämä tulostin on sertif ioitu Yhdysvalloissa DHHS 21 CFR Subchapt er J -s tandardin mukaiseksi luokan I (1) lasertuot teeksi ja muualla IEC 60825-1 -standardin mukaiseksi luokan I lasertuotteeksi.

Luokan I laser tuot teit a ei pi detä hai tall isi na. Tul ostimen sisäl lä on l uok an III b (3b) laser, joka o n nim ellist eholt aan 5 mW:n galliumarsenidilaser ja toimii 770 - 795 nanometrin aallonpi tuuksilla. Laserjärjestelmä ja tulostin ovat rakenteelt aan sellaisia, että kä yttäjä ei joudu alttiik si luokkaa 1 suuremmalle sät eilylle normaalin käy tön, ylläpidon tai huollon aikana.

Huomautu s las er laittees ta

Tämä kirjoi tin on Yh dysval loiss a luokan I (1) l aserl aittei den DHHS 2 1 CFR Subchapt er J -määr i tyksen muk ainen ja muualla luokan I laserlaitteiden IEC 60825-1 -määrityksen mukainen.

Luokan I laserlaitteiden ei katsota olevan vaarallisia käyttäjälle. Kirjoittimessa on sisäinen luokan IIIb (3b) 5 milliwatin galliumarsenidil aser, joka toimii aalt oalueella 770 - 795 nanometriä. Laserjärjeste lmä ja kirjoitin on suunnitelt u siten, että käyttäj ä e i al ti stu luokan I määrityk siä voimakkaammalle säteilylle kirj oit timen normaalin toiminnan, käyttäjän tekemien huoltotoimien tai muiden huoltotoimien yhteydessä.

VARO! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen.

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VARNING! Osynlig laserst rålning när denna del är öppnad och spärren är urkopplad. Betrakta ej strålen.

Laser-notis

Denna skrivare är i USA certifierad att motsvara kraven i DHHS 21 CFR, underparagraf J för laserprodukter av Klass I (1). I andra länder uppfyller skrivaren kraven för laserprodukter av Klass I enligt kraven i IEC 60825-1.

Laserprodukter i Klass I anses ej hälsovådliga. Skrivaren har en inb yggd laser av Klass IIIb (3b) som består av en laserenhet av gallium-arsenid på 5 milli w att som arbetar i våglängdsområdet 770-795 nanometer . Lasersystem et och skrivaren är utformade så att det aldrig fin ns ri sk för att någon person utsätts för laserstrålning över Klass I-nivå vi d normal användning, under håll som utförs av användaren ell er annan föreskriv en serviceåtgärd.

Laser-melding

Skriveren er godkjent i USA etter kra vene i DHHS 21 CFR, underkapittel J , f or klasse I (1) laser produkter, og er i andre land godkjent som et Klasse I-laserprodukt i samsvar med kravene i IEC 60825-1.

Klasse I-laserprodukter er ikke å betrakte som farlige. Skriveren inneholder internt en klasse IIIb (3b )-laser, som består av en gallium-arsenlaserenhet som avgir stråling i bølgelengdeområdet 770-7 95 nanom eter. Lasersystem et og skrive ren er utformet slik at personer aldri utsett es for la serstr åli ng ut over kl asse I-n ivå under vanlig bruk, vedlikehold som utføres av brukeren, eller foreskrevne serviceoperas joner.

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Avís sobre el Làser

Segons ha estat cert ificat als Estats Units, aquesta impressor a compleix els requi sits de DHHS 21 CFR, apartat J, pels productes làser de classe I (1), i segons ha estat certificat en altres llocs, és un producte là ser de classe I que compleix els requisits d’IEC 60825-1.

Els productes l àser de classe I no es consideren peri llosos. Aquesta impressora conté un làser de classe II Ib (3b) d’arseniür de gal.li, nominalmen t de 5 mil .l iwats, i funciona a la regió de longitud d’ona de 770-795 nanòmetres. El sistema làser i la impressora han sigut concebuts de manera que mai hi hagi exposició a la radiació làser per sobre d’un nivell de cl asse I durant una operació norma l, durant les tasques de mantenim ent d’usuari ni durant els serveis que satisfacin les condicions prescrites.

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Notices and safety inf ormation xxi

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Lithium warn ing

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CAUTION

This product conta ins a lithium bat tery. THERE IS A RISK OF EXPLOSION IF THE BATTE RY IS REPLACED BY AN INCORRECT TYPE. Discard used batteries accordi ng to t he battery manufacturer’ s instructions and local regulations.

Safety information

• The safety of this pro duct is based on testing and approvals of the original design and specific

components. The man ufacturer is not responsi ble for safety in the event of use of unauthorized replacement parts.

• The maintenance inf ormation for this produc t has been prepared for use by a professi onal service person

and is not intended to be used by others.

• There may be an increased risk of electric shock and personal injury dur ing disassembly and servi cing of

this product. Professional service personnel should understand this and take necessary precautions.

• CAUTION: When you see this symbol, there i s a danger from hazardous volta ge in the area of the

product where you a re work ing. Unp lug th e product be fore y ou begin, or us e cau tion i f th e product must receive power in order to perform the task.

Consignes de sécurité

• La sécurité de ce produit repose sur des tests et des

agréations por tant sur sa conception d'origine et sur des composants particuliers. Le fabri cant n'assume aucune responsabilité concerna nt l a sécurité en cas d'utilisation de pièces de rechang e non agréées.

• Les consignes d'entretien et de réparation de ce produit s'adressent uniquement à un personne l de

maintenance qualifié.

• Le démontage et l'entretien de ce produit pouvant présenter certains risques électriques, le personnel

d'entretien qualifié devra prendr e tout es les précautions nécessaires.

• ATTENTION : Ce symbole indique la présence d'unetension dangereuse dans la parti e du

produit sur laquelle vous travaillez. Débranchez le produit avant de commencer ou faites preu ve de vigilance si l' exécution de la tâche exige que le produit reste sous tens ion.

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Norme di sicurezza

• La sicurezza del prodotto si basa sui test e sull'approvazione del progetto originale e dei componenti

specifici. Il produttore non è responsabile per la sicurezza in caso di sostituzione non autorizzata delle parti.

• Le informazion i riguardanti la manutenz ione di questo prodotto sono indirizzate solta nto al personale di

assistenza autorizzato.

• Durante lo smontagg io e l a manu tenzione di questo prodotto,

il rischio di subire scosse elettriche e danni alla persona è più elevato. Il personale di assistenza autorizzat o deve, quindi, adottare le precauzioni necessarie.

• ATTENZIONE: Questo simbolo indi ca la presenza di tensione pericolosa nell'area del prodotto.

Scollegare il prodotto prima di iniziare o usare cautela se il prodotto deve essere alimentato per eseguire l'intervento.

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Sicherheitshinweise

• Die Sicherheit di eses Produkts basiert auf Test s und Zulassungen des ursprüngl ichen Modells und

bestimmter Baut eil e. Bei Verwendung nicht genehm igt er Ersatzteile wird vom Hersteller keine Verantwortung oder Haftung für die Sicherheit übernommen.

• Die Wartungsinformationen für dieses Produkt sind ausschließl ich für die Verwendung durch einen

Wartungsfachmann bestimmt.

• Während des Auseinandernehmens und der Wartung des Geräts besteht ein zusätzli ches Risiko eines

elektrischen Schlags und körperlicher Verletzung. Das zuständige Fachpersonal sollte entsprechende Vorsichtsmaßnahmen treffen.

• ACHTUNG: Dieses Symbol weist auf eine gefährliche elektrische Spannung hin, die in diesem

Bereich des Produkts auf tret en kann. Zieh en Sie vor den Arbei ten am Gerät den Netzsteck er des Geräts, bzw. arbeiten Sie mit großer Vor sicht, wenn das Produkt für die Ausführung der Arb eit en an den Strom angeschlossen sein muß.

Pautas de Seguridad

• La seguridad de este producto se basa en pruebas y aprobaciones del diseño original y componentes

específico s. El fabri cante no es responsable de la seguridad en caso de uso de piezas de repues to no autorizadas.

• La información sobre el mantenimiento de este producto está dirigida exclusivamente al personal

cualificado de mantenimiento.

• Existe mayor riesgo de de scarga e léctr ica y de dañ os pe rsonal es durant e e l desmont aje y l a repar aci ón de

la máquina. El personal cualificado debe ser consciente de este peligr o y tomar las precauciones necesarias.

• PRECAUCIÓN: este símbolo indica que el voltaje de la parte del equipo con la que está

trabajando es peligroso. Antes de empezar, desenchufe el equipo o tenga cuidado si, para trabajar con él, debe conectarlo.

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Inform a çõ es de Seg ur a nça

• A segurança deste produto baseia-se em testes e aprovações do modelo original e de componentes

específico s. O fabr icante não é responsável pela segunrança, no caso de uso de peças de substituição não autorizadas.

• As informações de segurança relativas a este produto destinam-se a profissionais destes serviços e não

devem ser utili zadas por outras pessoas.

• Risco de choques eléctricos e ferimentos graves durante a desmontagem e manutenção deste produto.

Os profissionais destes serviços devem estar avisados deste facto e tomar os cuidados necessários.

• CUIDADO: Quando vir este símbolo, existe a possível presença de uma potencial tensão

perigosa na zona do produto em que está a trabalhar. Antes de com eçar, desligue o produto da tomada eléctr ica ou seja cu ida doso caso o pr oduto t enha de estar liga do à c orrent e eléc tric a para realizar a taref a necessária.

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Informació de Seguretat

• La seguretat d'aquest producte es basa en l'avaluació i aprovació del disseny original i els components

específics . El fabricant no es fa responsable de les qüestions de seguretat si s'utilitzen peces de rec anvi no autoritzades.

• La informació pel ma nteniment d’aquest producte està orientada exclusivament a professionals i no està

destinada a ningú que no ho sigui.

• El risc de xoc elèctric i de danys personals pot augmentar durant el procés de desmuntatge i de servei

d’aquest producte. El personal professional ha d’estar-ne assabentat i prendre les mesures con venients.

• PRECAUCIÓ: aquest símbol indica que el voltatge de la part de l'equi p amb la qual esteu

treballan t és perill ós. Abans de començ ar, desendol leu l'equi p oextremeu les precaucions si, per treballar amb l' equip, l'heu de connectar.

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Preface

This manual contains maintenance procedures for service personnel. It is divided into the following chapters:

1. Genera l in fo r m a ti o n contains a general description of the printer and the maintenance approach used to

repair it. Speci al tools and test equipment, as well as general environme ntal and safety instructions, are discussed.

2. Diagnostic information contains an error indicator table, sym ptom tables, and servi ce checks used to

isolate failing field replaceable units (FRUs).

3. Diagnostic aids contains tests and chec ks used to locate or repeat sy mp toms of printer problems .

4. Repair in fo r m a t io n provides instructions for maki ng printer adjustments and removing and installing

FRUs.

5. Connector locations uses illustrations to identify the connec tor locations and test poi nts on the printer.

6. Preventive maintenance contains the lu bri cation specifications and recommendatio ns to prevent

problems.

7. Parts catalog contains illustrations and part numbers for individual FRUs.

Appendix A contains service tips and information. Appendix B contains representative print samples.

Navigation buttons

This manual contai ns navigation buttons in the right margin of each page, making it easier and quicker to navigate.

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Button Description

Click to move the document view backwar d by one page.

Click to move the document view forw ard by one page.

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Click to return to the last page viewed.

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Conventions

Note: A note provides additional information. Warning: A warning identi fi es something that might damag e the product hardware or softwar e.

There are several types of caution statements:

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CAUTION

A caution identifies something that might cause a servicer harm.

CAUTION

This type of caution i ndicates there is a danger fro m hazardous voltage in the area of the product where you are working. Unplug the product before you begin, or use caution if the product must recei ve power in order to perform the task.

CAUTION

This type of caution i ndicates a hot surface.

CAUTION

This type of caution i ndicates a tipping hazard.

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1. General in formation

The Oki™ MB780 and MB790 are All-In-One laser MFPs that provide print, copy, scan, and fax functio ns designed to attach to most compu ter networks. The operator panel i s touch-sensitive and allows the user to adjust the viewing angle. All information in this service m anual pertains to all model s unless explicitly noted.

Maintenance approach

The diagnostic information in this manual leads you to the correct field replaceable unit (FRU) or part. Use the service erro r codes, user status messages, user error messages, service checks, and diagnostic aids to determine the MPF probl em and repair the failure. Aft er you complete the repair, per for m tests as needed to verify the repair. See “Start” on page 2-1.

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General information 1-1

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Printer overview

CAUTION: Do not set up this product or make any electrical or cabling connections, such as th e

power cord or options and features, during a lightning storm.

Printer configurations

Note: Printer configuration may vary depending on your printer model.

Basic models

1 Automatic Document Feeder (ADF)

2 3 4 5 6 7

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5 6

Printer control panel Standard exit bin Multipurpose feeder 550-sheet tray (Tray 1) 550-sheet tray (Tray 2) Optional output bin

1-2 Service Manual

CAUTION:

Floor-mounted configurations requ ir e additional furniture for stability. You must use ei ther a printer stand or printer base if you a re using a 200 0-sheet drawe r. Certain ot her configura tions also must have a printer stand or printer base.

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Options

The following opti ons are available. Some options are not available in every country or region. Contact your point of purchase for options available in your country or region.

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Available internal options

•

Memory cards

– Printer memory – Flash memory – Fonts

• Firmware cards – Bar Code and Forms – IPDS and SCS/TNe – PrintCryption

– PRESCRIBE

• Printer hard disk

• Internal Solutions Ports (ISP) – RS-232-C Serial ISP – Par allel 1284-B ISP – MarkNet

N8150802.11 b/g/n Wireless ISP

– MarkNet N8130 10/100 Fiber ISP – MarkNet N8120 10/100/1000 Ethernet ISP

• MarkNet N8110 V-34 Fax Card

Media handling options

– 250- and 550-sheet paper trays of A4, letter, A5, B5, Executive, fol io, statement, and legal size – 250-sheet universall y adjustable tray – 250- and 550-sheet paper drawers – 2000-sheet high-capacity feeder – Envelope feeder – Duplex option—250-sheet – Duplex option—550-sheet – Output expander – Hi gh-capacity output stacker – StapleSmart™ Finisher – 5- bin Mailbox – Ver tical Kiosk Presenter – Horizontal Kiosk Presenter

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General information 1-3

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Supported paper sizes, types, and weig hts

The following tabl es provide information on standard and optional paper sources and the types of paper the y support.

Note: For an unlisted paper size, select the closest larger listed size.

Paper sizes supported by the printer

250-or 550-sheet

Paper size Dimensions

A4 210 x 297 mm

(8.3 x 11.7 in.)

A5 148 x 210 mm

(5.8 x8.3in.)

1,2

105 x 148 mm (4.1 x 5.8 in.)

J15 B5 182 x 257 mm

(7.2 x 10.1 in.)

Letter 216 x 279 mm

(8.5 x 11 in.)

Legal 216 x 356 mm

(8.5 x14 in.)

Executive 184 x 267 mm

(7.3 x 10.5 in.)

Oficio

216 x340 mm (8.5 x 13.4 in>)

Folio

216 x 330 mm (8.5 x 13 in.)

Statement

140 x 216 mm (5.5 x8.5 in.)

Universal

3,4

138 x 210 mm (5.5 x8.3 in.) up to 216 x 356 mm (8.5 x 14 in.)

70 x 127 mm (2.8 x 5 in.) up to 216 x 356 mm (8.5 x 14 in.)

148 x 182 mm (5.8 x 7.7 in.) up to 216 x 356 mm (8.5 x 14 in.)

7 3/4 Envelopes (Monarch)

98 x 191 mm (3.9 x 7.5 in.)

9 Envelope 98 x 225 mm

(3.9 x 8.9 in.)

10 Envelope 105 x 241 mm

(4.1 x 9.5 in.)

DL Envelope 110 x 220 mm

(4.3 x 8.7 in)

trays (standard or optional

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Optional 2000-sheet tray

Multipurpose feeder

Duplex unit

xxxx

xxx

xxxx

xxx

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Optional 2000-sheet tray

Multipurpose feeder

Duplex unit

Paper size Dimensions

Other Envelope 98 x 162 mm

250-or 550-sheet trays (standard or optional

(3.9 x 6.4 in.) to 176 x 250 mm (6.9 x 9.8 in.)

This size appear s in the Paper Size menu onl y when the paper source does not support size sensing or

when size sensing is turned off.

Only the standard exi t bin supports this size.

This size setting formats the page for 216 x 356 mm (8.5 x 14 in .) unless the size is specif ied by the

software applicat ion.

To support duplexing, the Universal width must be between 148 mm (5.8 in) and 216 mm (8.5 in);

Universal length must be between 182 mm (7.2 in) and 356 mm (14 in).

Paper types and weights supported by the printer

250-or 550-sheet

Paper type

trays (s ta n d a rd o r optional

Paper

xxxx

•Plain

• Bond

• Colored

•Custom

• Letterhead

•Light

• Heavy

• Preprinted

• Rough/Cotton

• Recycled Card stock xxxx Envelopes x

Labels

xxxx

• Paper

•Vinyl

Transparencies xxxx

Printing labels require a special label fuser cl eaner which prevent s duplexing. The la bel fuser cleaner is

included with the special cartridge required for label applications.

Optional 2000sheet tray

Multipurpose feeder

Duplex unit

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Paper types and weights supported by the output bins

Use this table to determine the possible output destinations of print jobs which use supported paper types and weights. The paper capacity of each output bin is lis ted in parentheses. Paper capacity estimations are calculated based on 75 g/m

(20 lb) paper.

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The finisher supports 60-176 g/m2 (16-47 lb) paper weights.

Optional hardware

Output

Paper type

Standard exit bin (350 or 550 sheets)

Expander (550 sheets) or High Capacity Output stacker

5-Bin Mailbox (500 sheets)

StapleS m a r t II Finisher (500 sheets)

(1850 sheets)

Paper

xxxx

•Plain

• Bond

• Colored

•Custom

• Letterhead

•Light

• Heavy

• Preprinted

• Rough/Cotton

• Recycled Card stock xx Envelopes

Labels

Transparencies xx

Supports 60-90 g/m2 (16-24 lb) paper weights.

Maximum of 50 sheets of 75 g/m2 (20 l b) paper per stapled packet. Results may vary with heavier

paper.

Printing labels require a special label fuser cl eaner which prevent s duplexing. The la bel fuser cleaner is

included with the special cartridge required for label applications.

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Printer configurations

Note: Printer configuration may vary depending on your printer model.

Basic models

1 Automatic Document Feeder (ADF)

2 3 4 5 6 7

5 6

Printer control panel Standard exit bin Multipurpose feeder 550-sheet tray (Tray 1) 550-sheet tray (Tray 2) Optional output bin

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CAUTION:

General information 1-7

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Tools required for service

Flat-blade screwdrivers, various sizes Phillips screwdrivers, various sizes 7/32 inch open-end wrench

7.0 mm nut driver

5.5 mm wrench Needlenose pli ers Diagonal side cutters Spring hook Analog or digital multimeter Flash light (optional)

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1-8 Service Manual

Page 36

Acronyms

ADF Automatic Document Feeder AIO All-In-One CCD Charge Coupled Device (CCD) CRU Customer Replaceable Unit DIMM Dual Inline Memory Module DRAM Dynamic Random Access Memory EP Electrophotographic process EPROM Erasable Programmable Read-Only Memory ESD Electrostatic Discharge FRU Field Replaceable Unit GB Gigabyte HCIT High-Capacity Input Tray HVPS High Voltage Power Supply ITC Internal Tray Card LASER Light Amplification by Stimulated Emission of Radiation LCD Liquid Crystal Display LED L ight-Emitting Diode LES

Embedded Solution (applications) LVPS Low Voltage Power Supply MDC Motor Driver Control MFP Multifunction Printer MPF Multipurpose Feeder NVRAM Nonvolatile Random Access Memory OPT O pt ical Sens or PC Photoconductor PIN Personal Identification Number PJL Printer Job Language POR Power-On Reset POST Power-On Self Test PP Parts Packet PWM Pulse Width Modulation RIP Ra ster Imaging Processor SCC Scanner Control Card SDRAM Synchronous Dynamic Random Access Memory SIMM S in gle Inline Memo ry Module UAT Univ e rs a lly Adjustable Tra y USB Universal Serial Bus V ac Volts alternating current V dc Volts direct current

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General information 1-9

Page 37

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1-10 Service Manual

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2. Diagnostic information

Start

Unplug the power cord from the electrical outlet before you connect or disconne ct any cabl electronic board or assembly.

If the printer is kept on, never t ouch the conduc tive part s if not specif ically requir ed. The power switch and inlet of the l ow volt age power s upply ca rd ( LVPS card) assembly i s li ve even whi le the power supply is cut off. Never touch the live parts.

Be careful to avoid burns by safely handling hot parts.

CAUTION:

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CAUTION:

CAUTION

The printer weight is gre ater t han 18k g (40 lbs) and r equire s two or more tr ained per sonn el to lift it safely. Use the hand holds on the side of the printer. Make sure your fingers are not under the printer when you lift or set the printer down.

To determine the cor rective action necessary to repair a printer, lo ok for the following informat ion:

• Does the POR stop? Check the [POR (Power On Reset) sequence]

• Do you have a symptom, rather than an error message?

• If you have an error mess age or user message, check the following: – [Error tables] – [2xx Paper Jams] – [User attendance messages] – [ S ervice checks] for individual error messages

Note: There may be printer error messages that are not contained in this service manual. Call your next level

support for assistance.

Diagnostic information 2-1

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Confirm the installation status

Be sure to check the following items before starting the troubleshooting procedures.

• With the power co rd un plugged f rom the wal l out let, check th at the co rd is f ree fr om breakage , sh ort-c ircuit ,

disconnected wire, or incorrect connection in the power cord.

• The printer is properly grounded. Check the power cord ground terminal.

• The printer is no t inst alle d at a plac e subjec ted to extr eme temperat ure, e xtreme hum idi ty or r apid chan ges

in temperature.

• The printer is not i nstalled close to water ser vice, humidifier, hea t generating unit, fire, in a very dusty

place, or a place exposed to air flow from the air condit ioning system.

• The printer is not installed in a place where volatile gas or inflammable gas is generated.

• The printer is not i nstalled in direct sun.

• The printer is inst alled on a level and stable sur face.

• Media meets specifications and is installed properly.

• Customer maintenance parts have been replaced at t he specified intervals.

• Check all attached options for proper attac hm ent and electrical connect ion.

• Refer to th e User’s Guide for proper installation.

Power-on Reset sequence

The following is an example of the events that occur during the POR sequence:

1. Turn the machine on.

2. The splash screen appears with a progress bar in the center until the code is loaded.

3. The fuser cooling fan turns on.

4. The fuser unit ass em bly lamps turn on.

5. The system card assembly cooling fan turns on.

6. Operator panel LED beco me s solid.

7. The trans p o rt m o to r tur n s on.

8. Ready is displaye d.

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Entering Diagnostics Menu

1. Turn off the printer.

2. Press and hold 3 and 6 buttons simultaneously.

3. Turn on the printer.

4. Release the buttons after 10 seconds.

2-2 Service Manual

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User atten dan ce me ss ag es

Error

code or

message

Error contents Description/Action Possible repair actions

7462

System Timeout

System Timeout The system detects a firmware

component that is no longer responding.

30.XX Invalid Refill Change Cartridge

Message is cleared when a new print cartridge is installed.

31.XX Defective Cartr idge Error code 31 displays when

the top front cover is closed and a defective print car tridge is detected. It may take the printer 10-20 seconds to determine if the print cartridge is defective.

32.XX Cartridge part number X unsupported by device

Error 32 displays when the t op cover is closed and an unsupported prin t car tridge is detected. It may take the printer 10-20 seconds to determine if the print cartridge is supported.

34 Short Paper The printer determines the

paper length is too short to print the formatted data. This occurs when the printer does not know the actual paper size loaded in the tray. For autosize sensing trays, this error occurs if the paper stop is in the incorrect position. Make sure the Paper Size setting is correct for the si ze paper that is being used.

Turn the power off; wait a few seconds, and then tu rn the power back on.

Install the proper print cartridge.

1. Install the proper print cartridge.

2. Ensure the pr int cartridge ID connector as sembl y is pr operl y connected.

3. Replace the print cartridge ID connector assembly if problem remains. Go to “Print

cartridge ID connec tor assembly removal” on page 4-33.

Install the proper print cartridge.

1. Ensure the media tray guides are properly set for the media being used.

2. Ensure the Switch media size is properly connected.

3. Replace the switch media size if problem remains.

Go to “Switch (media size)

assembly removal” on page 4-45.

4. Replace the media tray assembly if prob lem remains.

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Diagnostic information 2-3

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Error

code or

Error contents Description/Action Possible repair actions

message

35 Res Save Off

Deficient Memory

This IR is displayed when the printe r la c ks su f fic ie n t m e mo ry to enable Resource Save. This message usually indicates the user has allocated too much memory for one or more of the printe r's link bu ff e rs ; ho w e v e r, modification of other printer settings which affe ct the amount of available me mory may also create this condition. If the user desires to enable Resource Save after this message has been post ed, i t is recommended the user either install add itional memory or set each link buffer back to the Auto value.

Once all link buffers are returned to Auto, the user should exit the menus to activate the link buffer changes. Once the printer returns to the Ready state, the user may then enable Resource Save an d t hen fina lly go back and modify the link buffers again. The user should note the reduction of available memory to the link buffers when Resource Save has be en enabled as opposed to the memory available when Resource Save is disabled.

This message displays when the printer lacks sufficient memory to enable Resourc e Save. This message usually indicates t he user has allocated too m uch memory for one or more of the printer li nk buffers; however, modification of other printer sett ings which affect the amount of available memory may also create this condition. If restoration of Resource Save is required after this mess age is received, the customer shoul d install additional me mory or set each link buffer to Aut o. Once al l link buffers are retur ned to Auto, you should exit the me nu to activate th e li nk buffer changes. Once the printer returns to the Ready state, you can enable Res ource Sa ve and go back and modify the link buffers again. Note the reduction of avail able memory to the link buffers when Resource Save has been enabled, and compare it to the memory availabl e when Resource Save is disabled.

• Press to disable Resource Save and continue printing.

To enable Resource Save after you get this message:

- Make sure the link buffer s ar e se t to Au to , then exit the menus to activate th e li nk buffer changes.

- When Ready is displayed, enable Resource Save.

• Install additional memory.

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37A Insufficient Collation

2-4 Service Manual

Area

This message displays when the pri n ter memory is insufficient to perf orm the Fl ash Memory Defragment operat ion.

Note: This message is post ed prior to the actual start of the defragment operat ion. The printer code dete rmines if enough printer memory is available to complete the defragment operat ion. The user should not be concerned with losing resources stored in the flash op t ion.

The following actions may be taken:

•

Press to

clear the

message. To perform the defragment operation:

- Delete fonts, macros, and other data in RAM.

- Install additional printer memory.

• Press until Busy/ Waiting appears . The following actions are available:

-Cancel Job

- Reset Printer

- Reset Active Bin

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Error

code or

Error contents Description/Action Possible repair actions

message

37C Insufficient Mem ory This message display s when

the pri n ter memory us ed to restore the Print and Hold jobs from the disk and found that some or all of the jobs could not be restor ed. The print er ran out of memory while at tempting to restore the jobs.

38 Memory Full This message displays when

the printer is processing an incoming job and there is insufficient memory available to continue processing the job.

The following actions may be taken:

• Press to clear the message. Some of the Print

and Hold jobs on the disk will not be restored. They remain on the disk, but cannot be accessed.

• Press until Busy/ Waiting appears . The following functions may be available:

-Cancel Job

- Reset Printer

Reset Active Bin The following actions may be

taken:

• Press to clear the message. Perform the

defragment operation:

- Perform the defra gment operation

- Delete fonts, macros, and other data in RAM

- Install additional memory

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39 Complex Page This message displays when

the page is too complex to print. The following actions may be taken:

• Press to display Busy/ Waiting. The following functions may be available:

-Cancel Job

- Reset Printer

Reset Active Bin The following actions may be

taken:

• Press to clear the message and continue the

job. Some data loss may occur. Simplify the print job and reprint, if necessary.

• Press until Busy/ Waiting appears . The following selections are possible:

-Cancel Job

- Reset Printer

Reset Active Bin

Diagnostic information 2-5

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Error

code or

Error contents Description/Action Possible repair actions

message

42.XY Cartridge Region Mismatch

This IR is displayed when the printer detect s that the inst alled cartridge has a region t hat differs from the below options. To clear this IR, the printer cartridge must be r eplaced with one that has a proper region.

X and Y can have the following values: 0 : Worldwide region or

Undefined region 1 : America 2 : EMEA 3 : Asia 4 : Latin America 9 : Invalid region

50 PPDS Font Error This message displays when

the PPDS interpr e ter has encountered a font error.

Note: This error may only occur when the printer is formatting PPDS print data.

Install a new toner car tridge that matches the correct regional spec ification.

The following actions may be taken:

• Press to clear the message and continue

processing the job.

• Press until Busy/ Waiting appears . The following are available:

-Cancel Job

- Reset Printer

- Reset Active Bin

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51 Defective Flash This message display s when

the printer detect s a defective flash. This error may occur at power on, or during flash format and write operations.

52 Flash Full This message displays when

the printer detect s an unformatted flash at power on.

54A Serial Option [x] Error This IR is displayed when a

serial error (f ra m in g , p ar ity or overrun) has been detected on the specified optional serial port. This usually indicates tha t the serial port has not been set up correctly.

Once a host interf ace err or h as been displayed for the first time, reporting of further host interface errors for th e associated port is suppressed until the interface parameters are changed for the associated, or the machine is powered off.

Press to clear the message. The flash i s ma rked as bad and normal operation continues. Flash operations are not allowed unti l the problem is resolved.

Press to clear the message. The flash i s ma rked as bad and normal operation continues. Flash operations are not allowed unti l the flash is formatted.

Go to network service check. See “ADF & Scanner Related

Troubleshooti ng” on page 2-172.

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Error

code or

Error contents Description/Action Possible repair actions

message

54B Std Network Software

Error

54C Netwo rk [x] Software

Error

55B Unsupported Option

in Slot [x]

This error displays when a network port is detected, but the printer cannot est ablish communications with it.

This error displays when a network port is detected, but the printer cannot est ablish communications w it h it .

An unsupported option is installed in the specified soluti o ns port. Powe r of f th e printer and remove the unsupported opti on in the specified slot.

The following actions may be taken:

•Press

to clear the

message and continue printing.

The job may not print correctly.

• Program new firmware for the network interf ace.

Reset the printer. The following actions may be

taken:

• Press to clear the message and continue printing.

The job may not print correctly.

• Program new firmware for the network interf ace.

• Reset the printer.

Remove unsupported option.

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56A Parallel Po rt [x ]

Disabled

56B Serial Port [x]

Disabled

56C Standard USB Port

Disabled

This error displays when data is sent to the printer across an optional parall el por t, but the port has been disable d. Once this message displ a ys, reporting of further errors is suppressed unti l the menus are entered, or the printer is reset.

This error displays when data is sent to the printer across an serial port, but the port has been disabled. Once th is message displays, reporting of further errors i s suppressed until the menus are entered, or the printer is reset.

Displayed when status is requested over the USB port, but the port has been disable d. Once the error has been displayed for the fi rst time, reporting of further errors is suppressed unti l the menus are entered or the printer is reset.

Go to network service check. See “ADF & Scanner Related

Troubleshooti ng” on page 2-172.

Go to network service check. See “ADF & Scanner Related

Troubleshooti ng” on page 2-172.

The following actions may be taken:

• Press to clear the message. The printer

discards any data received on the USB port.

• Press until Busy/ Waiting appears . The following are available:

- Reset Printer

Reset Active Bin

Diagnostic information 2-7

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Error

code or

Error contents Description/Action Possible repair actions

message

56E USB Port [x] Disabled Displayed when status is

requested over the USB port, but the port has been disable d. Once the error has been displayed for the fi rst time, reporting of further errors is suppressed unti l the menus are entered or the printer is reset.

58A Too Many Bins

Attached

This error code displays when too many bins are attached to the printer.

58B Too Many Disks

Installed

This error code displays when too many disks are attached to the printer.

The following actions may be taken:

• Press to clear the message. The printer

discards any data received on the USB port.

• Press until Busy/ Waiting appears . The following are available:

- Reset Printer

Reset Active Bin

1.Turn off and unplug the printer.

2.Remove the excess bins.

3.Plug in the printer, and turn it on.

1.Turn off and unplug the printer.

2.Remove the excess disks.

3.Plug in the printer, and turn it on.

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58C Too Many Flash

Options

This error code displays when too many user flash memory options or too many optional firmware cards have been installed.

User can power off a nd remove extra flash options .

58D Too Many Trays

Attached

This error code displays when too many input trays are attached to the print er.

59A Incompatible Duplex An incompatible duplex option

is installed. Remove the incompatible duplex option and pre ss

to clear the message. Note: If the user insta ll ed the

incompatible dev ice to satisfy a Check Device Connections/ reattach message, the user should reinstall an associated compatible opt ion or hot unplug the option.

1.Turn off and unplug the printer.

2.Remove the excess flash memory.

3.Plug in the printer, and turn it on.

1.Turn off and unplug the printer.

2.Remove the excess trays.

3.Plug in the printer, and turn it on.

1.Turn off and unplug the printer.

2.Remove the incompatible external duplex unit assembly.

3.Plug in the printer, and turn it on.

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Error

code or

Error contents Description/Action Possible repair actions

message

59B Incompatible

Envelope Feeder

59C Incompatible Output

Bin [x]

An incompatible envelope feeder is installed.

Remove the incompatible feeder and press to clear

the message. Note: If the user insta ll ed the

incompatible dev ice to satisfy a Check Device Connections/ reattach message, the user should reinstall an associated compatible opt ion or hot unplug the option.

An incompatible output bin is installed. For Output Bin x, x=1, 2, or 3.

Remove the incompatible output bin and press to

clear the message. Note: If the user insta ll ed the

incompatible dev ice to satisfy a Check Device Connections/ reattach message, the user should reinstall an associated compatible opt ion or hot unplug the option.

1.Turn off and unplug the printer.

2.Remove the incompatible envelope feeder.

3.Plug in the printer, and turn it on.

1.Turn off and unplug the printer.

2.Remove the incompatible output option.

3.Plug in the printer, and turn it on.

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59D Incompatible Tray [x] An incompatible tray is

installed. For Tray x, x= 2, 3, 4, or 5.

Remove the incompatible tray and press to clear the

message. Note: If the user insta ll ed the

incompatible dev ice to satisfy a Check Device Connections/ reattach message, the user should reinstall an associated compatible opt ion or hot unplug the option.

61 Defective Disk This error code displays when

the printer detect s a defective disk. This error may occur at power on or during disk format and write operati ons. While t his message displays.

62 Disk Full This error code displa ys when

there is not enough free space on the disk to hold the resources that hav e been requested to be writte n to the disk. This messa ge displays for both resource and PostScript Disk operators when th e disk is full.

1.Turn off and unplug the printer.

2.Remove the incompatible trays.

3.Plug in the printer, and turn it on.

press to clear the message. The disk is mar ked defective and norm al printer operations continue. Disk operations are not allowed with a defective disk. The Format Disk menu is not shown.

TBD

Diagnostic information 2-9

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Error

code or

Error contents Description/Action Possible repair actions

message

80 Routine Mainte nance

Needed

The operator panel displays this message at each 300K page count interval. It is necessary to repl ace the fuser assembly, trans fer rol ler, charge roll, and pi ck rolls at this interval to mainta in t he print quality and reliability of the printer. The parts are avai lable as a maintenance ki t. For mor e information, go to “Scheduled

maintenance” on page 6-2.

88A Cartridge Low This IR is displayed when

cartridge low occurs and the cartridge low alarm is activated. If car tr idge alarm is not activated, this is not an intervention condition.

88C Cartridge Nearly Low This IR is displayed when

cartridge low occurs and the cartridge low alarm is activated. If car tr idge alarm is not activated, this is not an intervention condition.

Scheduled maintenance required.

Refer to chapter 6. Go to “Preventive

maintenance” on page 6-1.

Replace the print cartridge.

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88C Replace Cartridge This IR is displayed when ton er

cartridge is exhausted/empty.

Replace the print cartridge.

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Page 48

Error co de ta ble

Error

code or

message

Error contents Description/Action Possible repair actions

7462

200.00 Sensor (input) area jam

200.01 Sensor (input) lingering jam

Source = MPF, duplex or envelope feeder

200.02 Sensor (input) lingering jam

200.04 Sensor (input) early jam

The media is jammed in the sensor (input) area.

The media reached the sensor (input) but did not cle ar it wit hin the specified time.

The media reached the sensor (input) sooner than the specified time.

Wrong config ID cau ses engine to assume 500 paper path on 250 model.

1. Fan the media and check for obstructions.

2. Go to sensor (input) service check.

See “Sensor (input) service

check” on page 2-108.

1. Fan the media and check for obstructions.

2. Go to sensor (input) lingerin g jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

1. Fan the media and ensure it is properly installed.

2. Go to sensor (input) lingerin g jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

1. Fan the media and ensure it is properly installed.

2. Go to sensor (input) early jam service check.

See “Sensor (input) early jam

service check” on page 2-131.

Go Back

200.06 Sensor (input) early jam

200.07 Sensor (input) late jam

Source = input option tray

200.08 Sensor (input) early jam

The sensor (input) rebounded once the trailing edge of the media passed.

The media is late reaching t he sensor (input) within the specified time.

The media reaches the sensor (input) sooner than the specified time.

Go to sensor (input) service check.

See “Sensor (input) service

check” on page 2-108.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

1. Fan the media and ensure it is properly installed.

2. Go to sensor (input) early jam service check.

See “Sensor (input) early jam

service check” on page 2-131.

Diagnostic information 2-11

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Error

code or

Error contents Description/Action Possible repair actions

message

200.09 Printhead laser start failure

200.10 Printhead motor synchronization error

200.11 Printhead polygon mirror sy nchronization error

The printhead lase r start process failed because it did not receive proper feedback signal from the printhead motor.

The printhead motor is not synchronized when media reaches the sensor (input).

The printhead polygon mirror motor becomes unsynchronized when the media reaches the sensor (input).

1.Check all connections on the printhead.

2.Check all connections on the main drive motor assembly.

3.Replace the main drive motor assembly if probl em remains. Go to “Main drive

motor assembly removal ” on page 4-20.

1.Remove all media present in media path.

2.Check all connections on the printhead.

3.Check all connections on the system card assem bly.

4.Replace the printhead if problem remains. Go to

“Printhead assembly removal” on page 4-34.

1.Remove all media present in media path.

2.Check all connections on the printhead.

3.Check all connections on the system card assem bly.

4.Replace the printhead if problem remains. Go to

“Printhead assembly removal” on page 4-34.

Go Back

200.12 Laser power signal error

200.13 Sensor (input) static jam

200.14 Sensor (input) early jam

The printhead laser power signal has failed

Media remains on the sensor (input) during the warm up sequence.

The media reached the sensor (input) sooner than the specified time.

1.Remove all media present in media path.

2.Check all connections on the printhead.

3.Check all connections on the system card assem bly.

Replace the printhead if problem remains. Go to

“Printhead assembly removal” on page 4-34.

4.Replace the system card if problem remains. Go to

“System card assembl y removal” on page 4-50.

Go to sensor (input ) static jam service check.

See “Sensor (input) static

jam service check” on page 2-132.

Go to sensor (input) early jam service check.

See “Sensor (input) early jam

service check” on page 2-131.

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Error

code or

Error contents Description/Action Possible repair actions

message

200.15 Laser power did not settle

200.16 Main drive motor assembly load error

Laser circuit failure on printhead or system card assembly.

The main drive motor assembly has failed or caused high mechanical load due to paper jam or bind.

1.Remove all media present in media path.

2.Check all connections on the printhead.

3.Check all connections on the system card assem bly.

Replace the printhead if problem remains. Go to

“Printhead assembly removal” on page 4-34.

4.Replace the system card if problem remains. Go to

“System card assembl y removal” on page 4-50.

1.Remove all media present in media path.

2.Check all connections on the main drive motor assembly.

3.Check all connections on the system card assem bly.

4.Replace the main drive motor assembly if probl em remains. Go to “Main drive

motor assembly removal ” on page 4-20.

Go Back

200.17 Sensor (input) lingering jam

Source = Tray 1 Tray leve l= Not L ow

200.18 Sensor (input) lingering jam

Source = Tray 1 Tray leve l = Low

200.19 Sensor (input) lingering jam

Source = Tray 1 Tray leve l = Emp ty

200.27 Sensor (input) lingering jam

Source = Tray 2 Tray level = Not Low

200.28 Sensor (input) lingering jam

Source = Tray 2 Tray leve l = Low

The media reached the sensor (input) but did not cle ar it wit hin the specified time.

The media reached the sensor (input) but did not cle ar it wit hin the specifi

ed time.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Diagnostic information 2-13

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7462

Error

code or

Error contents Description/Action Possible repair actions

message

200.29 Sensor (input) lingering jam

Source = Tray 2 Tray leve l = Emp ty

200.32 Operator panel door assembly

swit c h failure

200.33 Sensor (input) early jam

The media reached the sensor (input) but did not cle ar it wit hin the specified time.

Operator panel door assembly not fully closed. Interlock switch not fu nctioning correc tl y.

The media reached the sensor (input) sooner than the specified time.

Wrong config ID cau ses engine to assume 500 paper path on 250 model.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

1.Ensure that the operator panel door assembl y is ful ly closed.

2.Check operator panel door assembly for damage.

3.Check interlock switch (in left operator panel hinge) for damage.

4.Check all connections on the system card assem bly.

1. Fan the media and ensure it is properly installed.

2. Go to sensor (input) early jam service check.

See “Sensor (input) early jam

service check” on page 2-131.

Go Back

200.34 Sensor (toner empty) failure

200.37 Sensor (input) lingering jam

Source = Tray 3 Tray leve l= Not L ow

200.38 Sensor (input) lingering jam

Source = Tray 3 Tray leve l = Low

200.39 Sensor (input) lingering jam

Source = Tray 3 Tray leve l = Emp ty

200.47 Sensor (input) lingering jam

Source = Tray 4 Tray level = Not Low

The sensor (toner empty) has failed or is not sensing the pulse wheel on the print cartridge.

The media reached the sensor (input) but did not cle ar it wit hin the specified time.

1. Inspect print cartridge pulse wheel for damage and replace if needed.

2. Check the sensor (toner empty) for proper operation. See “Sensor (ADF sheet

through) static jam service check” on page 2-113.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

am service check.

” on

page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

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Error

code or

Error contents Description/Action Possible repair actions

message

200.48 Sensor (input) lingering jam

Source = Tray 4 Tray leve l = Low

200.49 Sensor (input) lingering jam

Source = Tray 4 Tray leve l = Emp ty

200.57 Sensor (input) lingering jam

Source = Tray 5 Tray level = Not Low

200.58 Sensor (input) lingering jam

Source = Tray 5 Tray leve l = Low

200.59 Sensor (input) lingering jam

Source = Tray 5 Tray leve l = Emp ty

The media reached the sensor (input) but did not cle ar it wit hin the specified time.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go to sensor (input) lingering jam service check.

See “ Sensor ( input) linger ing

jam service check.” on page 2-130.

Go Back

201.00 Sensor (fuser output) area jam.

Type 1 fuser

201.01 Main drive motor assembly load error.

Type 1 fuser

201.02 Sensor (fuser output)

te jam.

la Ty

pe 1 fuser

201.04 Sensor (narrow media) late jam

Type 1 fuser

The media is jammed in the sensor (fuser output) area.

The main drive motor assembly has failed or caused high mechanical load due to paper jam or bind.

The media is late reaching t he sensor (fuser output ) with in the specified time.

The expected wide media is late reaching the sensor (narrow media) within the specified time.

Go to sensor (fuser output) service check.

See “Sensor (fuser output)

service check” on page 2-108.

1.Check all connections on the main drive motor assembly.

2.Check all connections on the system card assem bly.

3.Replace the main drive motor assembly if probl em remains. Go to “Main drive

motor assembly removal ” on page 4-20.

Go to sensor (fuser output) lat e jam service check.

See “Sensor (fuser output)

late jam service check.” on page 2-133.

If problem remains, a type 2 fuser can be insta lled.

Go to sensor (narrow media) late jam servi ce check.

See “Sensor (narrow media)

late jam service check.” on page 2-136.

Diagnostic information 2-15

Page 53

7462

Error

code or

Error contents Description/Action Possible repair actions

message

201.06 Sensor (narrow media) late jam

Type 1 fuser

201.07 Sensor (fuser output) late jam

Type 1 fuser

201.25 Sensor (fuser output) area jam.

Type 2 fuser

201.26 Main drive motor assembly load error.

Type 2 fuser

The expected wide media is late reaching the sensor (narrow media) within the specified time.

The media is late reaching t he sensor (fuser output ) with in the specified time.

The media is jammed in the sensor (fuser output) area.

The main drive motor assembly has failed or caused high mechanical load due to paper jam or bind.

Go to sensor (narrow media) late jam servi ce check.

See “Sensor (narrow media)

late jam service check.” on page 2-136.

Go to sensor (fuser output) lat e jam service check.

See “Sensor (fuser output)

late jam service check.” on page 2-133.

Go to sensor (fuser output) service check.

See “Sensor (fuser output)

late jam service check.” on page 2-133.

1.Check all connections on the main drive motor assembly.

2.Check all connections on the system card assem bly.

3.Replace the main drive motor assembly if probl em remains. Go to “Main drive

motor assembly removal ” on page 4-20.

Go Back

201.27 Sensor (fuser output) late jam.

Type 2 fuser

201.29 Sensor (narrow media) late jam

Type 2 fuser

201.30 Operator panel door assembly interlock swit c h failure

Type 2 fuser

The media is late reaching t he sensor (fuser output ) with in the specified time.

The expected wide media is late reaching the sensor (narrow media) within the specified time.

The printer detected that the operator panel door int erlock switch did not cycle prior to printe r re s ta r t.

Go to sensor (fuser output) lat e jam service check.

See “Sensor (fuser output)

late jam service check.” on page 2-133.

If problem remains, a type 2 fuser can be insta lled.

Go to sensor (narrow media) late jam servi ce check.

See “Sensor (narrow media)

late jam service check.” on page 2-136.

1.Remove all media present in media path.

2.Ensure that the operator panel door assembl y is ful ly open then fully closed.

3.Check operator panel door assembly for damage.

Check int

erlock switch (in left operator panel hinge) for damage.

5.Check all connections on the system card assem bly.

2-16 Service Manual

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7462

Error

code or

Error contents Description/Action Possible repair actions

message

201.31 Sensor (narrow media) late jam

Type 2 fuser

201.32 Sensor (fuser output) late jam

Type 2 fuser

201.50 Sensor (fuser output) late jam

Type 1 fuser Fuser pa ge count has

exceeded life.

201.51 Main drive motor assembly load error.

Type 1 fuser Fuser pa ge count has

exceeded life.

The expected wide media is late reaching the sensor (narrow media) within the specified time.

The media is late reaching t he sensor (fuser output ) with in the specified time.

The main drive motor assembly has failed or caused high mechanical load due to paper jam or bind.

Go to sensor (narrow media) late jam servi ce check.

See “Sensor (narrow media)

late jam service check.” on page 2-136.

Go to sensor (fuser output) lat e jam service check.

See “Sensor (fuser output)

late jam service check.” on page 2-133.

Go to sensor (fuser output) service check.

See “Sensor (fuser output)

service check” on page 2-108.

1.Check all connections on the main drive motor assembly.

2.Check all connections on the system card assem bly.

3.Replace the main drive motor assembly if probl em remains. Go to “Main drive

motor assembly removal ” on page 4-20.

Go Back

201.52 Sensor (fuser output) late jam

Type 1 fuser Fuser pa ge count has

exceeded life.

201.54 Sensor (narrow media) late jam

Type 1 fuser Fuser pa ge count has

exceeded life

201.55 Operator panel door assembly interlock switch open fai lure

Type 1 fuser Fuser pa ge count has

exceeded life

The media is late reaching t he sensor (fuser output ) with in the specified time.

The media is late reaching t he sensor (narrow media) withi n the specified time.

The printer detected that the switch (operator panel door

nterlock)

did not cycle prior to

printe r re s ta r t.

Go to sensor (fuser output) lat e jam service check.

See “Sensor (fuser output)

late jam service check.” on page 2-133.

If problem remains, a type 2 fuser can be insta lled.

Go to sensor (narrow media) late jam servi ce check.

See “Sensor (narrow media)

late jam service check.” on page 2-136.

1.Remove all media present in media path.

2.Ensure that the operator panel door assembl y is ful ly open then fully closed.

3.Check operator panel door assembly for damage.

4.Check interlock switch (in left operator panel hinge) for damage.

5.Check all connections on the system card assem bly.

Diagnostic information 2-17

Page 55

7462

Error

code or

Error contents Description/Action Possible repair actions

message

201.56 Sensor (narrow media) late jam

Type 1 fuser Fuser pa ge count has

exceeded life.

201.57 Sensor (fuser output) late jam

Type 1 fuser Fuser pa ge count has

exceeded life

201.75 Sensor (fuser output) late jam

Type 2 fuser Fuser pa ge count has

exceeded life.

201.76 Main drive motor assembly load error.

Type 2 fuser Fuser pa ge count has

exceeded life.

The media is late reaching t he sensor (narrow media) withi n the specified time.

The media is late reaching t he sensor (fuser output ) with in the specified time.

The main drive motor assembly has failed or caused high mechanical load due to paper jam or bind.

Go to sensor (narrow media) late jam servi ce check.

See “Sensor (narrow media)

late jam service check.” on page 2-136.

Go to sensor (fuser output) lat e jam service check.

See “Sensor (fuser output)

late jam service check.” on page 2-133.

Go to sensor (fuser output) lat e jam service check.

See “Sensor (fuser output)

late jam service check.” on page 2-133.

1.Remove all media present in media path.

2.Check all connections on the main drive motor assembly.

3.Check all connections on the system card assem bly.

4.Replace the main drive motor assembly if probl em remains. Go to “Main drive

motor assembly removal ” on page 4-20.

Go Back

201.77 Sensor (fuser output) late jam

Type 2 fuser Fuser pa ge count has

exceeded life.

201.79 Sensor (narrow media) late jam

Type 2 fuser Fuser pa ge count has

exceeded life

201.80 Operator panel door assembly interlock switch open fai lure

Type 2 fuser Fuser pa ge count has

exceeded life

The media is late reaching t he sensor (fuser output ) with in the specified time.

The media is late reaching t he sensor (narrow media) withi n the specified time.

The printer detected that the

tch (operat

swi

or panel door interlock) did not cycle prior to printe r re s ta r t.

Go to sensor (fuser output) lat e jam service check.

See “Sensor (fuser output)

late jam service check.” on page 2-133.

Go to sensor (narrow media) late jam servi ce check.

See “Sensor (narrow media)

late jam service check.” on page 2-136.

1.Remove all media present in media path.

2.Ensure that the operator panel door assembl y is ful ly open then fully closed.

3.Check operator panel door assembly for damage.

4.Check interlock switch (in left operator panel hinge) for damage.

5.Check all connections on the system card assem bly.

2-18 Service Manual

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7462

Error

code or

Error contents Description/Action Possible repair actions

message

201.81 Sensor (narrow media) late jam

Type 2 fuser Fuser pa ge count has

exceeded life.

201.82 Sensor (fuser output) late jam

Type 2 fuser Fuser pa ge count has

exceeded life

202.00 Paper jam around fuser exit or redrive area.

Type 1 fuser

The media is late reaching t he sensor (narrow media) withi n the specified time.

The media is late reaching t he sensor (fuser output ) with in the specified time.

Page may be jammed in fuser exit or redrive area.

Go to sensor (narrow media) late jam servi ce check.

See “Sensor (narrow media)

late jam service check.” on page 2-136.

Go to sensor (fuser output) lat e jam service check.

See “Sensor (fuser output)

late jam service check.” on page 2-133.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Go to sensor (fuser output) service check. See

“Sensor (fuser output) service check” on page 2-108.

5.Go to sensor (narrow media) service check. See

“Sensor (narrow media) service check” on page 2-109.

Go Back

202.01 Sensor (fuser output) lingering jam.

Destination is standard bin.

Type 1 fuser

202.02 Sensor (fuser output) lingering jam.

Type 1 fuser

202.03 Sensor (narrow media) static jam

Type 1 fuser

202.04 Sensor (fuser output) bounce

Type 1 fuser

202.06 Sensor (fuser output) static jam

Type 1 fuser

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did not reach the sensor

(narrow media) Media reached the sensor

(fuser output) but did not clear it in the specifie d time.

Media remains on the sensor (narrow media) during the warm up sequence.

The sensor (fuser output) rebounded once the trailing edge of

the media p

assed.

Media remains on the sensor (fuser output) during the warm up sequence.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (narrow media) static jam ser vice check.

See “Sensor (narrow media)

static jam service check” on page 2-137.

Go to sensor (fuser output) service check.

See “Sensor (fuser output)

service check” on page 2-108.

Go to sensor (fuser output) static jam ser vice check.

See “Sensor (fuser output)

static jam service check” on page 2-136.

Diagnostic information 2-19

Page 57

7462

Error

code or

Error contents Description/Action Possible repair actions

message

202.07 Sensor (fuser output) lingering jam.

Type 1 fuser

202.09 Sensor (fuser output) lingering jam.

Type 1 fuser

202.10 Sensor (fuser output) lingering jam.

Destination is output option.

Type 1 fuser

202.11 Sensor (fuser output) lingering jam.

Destination is standard bin.

Type 1 fuser

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did not reach the sensor

(narrow media) Media reached the sensor

(fuser output) but did not clear it in the specifie d time.

and Media did reach the sensor

(narrow media)

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go Back

202.12 Sensor (fuser output) lingering jam.

Destination is output option.

Type 1 fuser

202.13 Sensor (fuser output) static jam

and Sensor (narrow

media) static jam Type 1 fuser

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did reach the sensor

(narrow media) Media remains on the sensor

(fuser output) and the sensor (narrow media) during the warm up sequence.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

1.Go to sensor (fuser output) static jam ser vice check. See “Sens o r (fus er

output) sta tic jam service check” on page 2-136.

2.Go to sensor (narrow media) static jam service check. See “Sensor

(narrow medi a) static jam service check” on

ge 2-137.

2-20 Service Manual

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7462

Error

code or

Error contents Description/Action Possible repair actions

message

202.25 Paper jam around fuser exit or redrive area.

Type 2 fuser

202.26 Sensor (fuser output) lingering jam.

Destination is standard bin.

Type 2 fuser

202.27 Sensor (fuser output) lingering jam.

Type 2 fuser

Page may be jammed in fuser exit or redrive area.

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did not reach the sensor

(narrow media) Media reached the sensor

(fuser output) but did not clear it in the specifie d time.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Go to sensor (fuser output) service check.

5.See “Sensor ( f user

output) service check” on page 2-108.

6.Go to sensor (narrow media) service check. See

“Sensor (narrow media) service check” on page 2-109.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go Back

202.28 Sensor (narrow media) static jam

Type 2 fuser

202.29 Sensor (fuser output) bounce

Type 2 fuser

202.30 Never sent the divert command to the stacker.

Type 2 fuser

202.31 Sensor (fuser output) static jam

Type 2 fuser

202.32 Sensor (fuser output) lingering jam.

Type 2 fuser

Media remains on the sensor (narrow media) during the warm up sequence.

The sensor (fuser output) rebounded once the trailing edge of the media passed.

Media remains on the sensor (fuser output) during the warm up sequence.

Media reached the sensor

fuser output)

(

but did not clear

it in the specifie d time.

Go to sensor (narrow media) static jam ser vice check.

See “Sensor (narrow media)

static jam service check” on page 2-137.

Go to sensor (fuser output) service check.

See “Sensor (fuser output)

service check” on page 2-108.

Go to sensor (fuser output) static jam ser vice check.

See “Sensor (fuser output)

static jam service check” on page 2-136.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Diagnostic information 2-21

Page 59

7462

Error

code or

Error contents Description/Action Possible repair actions

message

202.34 Sensor (fuser output) lingering jam.

Type 2 fuser

202.35 Sensor (fuser output) lingering jam.

Destination is output option.

Type 2 fuser

202.36 Sensor (fuser output) lingering jam.

Destination is standard bin.

Type 2 fuser

202.37 Sensor (fuser output) lingering jam.

Destination is output option.

Type 2 fuser

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did not reach the sensor

(narrow media) Media reached the sensor

(fuser output) but did not clear it in the specifie d time.

and Media did reach the sensor

(narrow media) Media reached the sensor

(fuser output) but did not clear it in the specifie d time.

and Media did reach the sensor

(narrow media)

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go Back

202.38 Sensor (fuser output) static jam

and Sensor (narrow

media) static jam Type 2 fuser

202.50 Paper jam around fuser exit or redrive area.

Type 1 fuser Fuser pa ge count has

exceeded life

Media remains on the sensor (fuser output) and the sensor (narrow media) during the warm up sequence.

Page may be jammed in fuser exit or redrive area.

1.Go to sensor (fuser output) static jam ser vice check. See “Sens o r (fus er

output) sta tic jam service check” on page 2-136.

2.Go to sensor (narrow media) static jam service check. See “Sensor

(narrow medi a) static jam service check” on page 2-137.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in

edia path.

to sensor (fuser output)

4.Go service check. See

“Sensor (fuser output) service check” on page 2-108.

5.Go to sensor (narrow media) service check. See

“Sensor (narrow media) service check” on page 2-109.

2-22 Service Manual

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7462

Error

code or

Error contents Description/Action Possible repair actions

message

202.51 Sensor (fuser output) lingering jam.

Destination is standard bin.

Type 1 fuser Fuser pa ge count has

exceeded life.

202.52 Sensor (fuser output) lingering jam.

Type 1 fuser Fuser pa ge count has

exceeded life.

202.53 Sensor (narrow media) static jam

Type 1 fuser Fuser pa ge count has

exceeded life.

202.54 Sensor (fuser output) bounce

Type 1 fuser Fuser pa ge count has

exceeded life.

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

Media remains on the sensor (narrow media) during the warm up sequence.

The sensor (fuser output) rebounded once the trailing edge of the media passed.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (narrow media) static jam ser vice check.

See “Sensor (narrow media)

static jam service check” on page 2-137.

Go to sensor (fuser output) service check.

See “Sensor (fuser output)

service check” on page 2-108.

Go Back

202.56 Sensor (fuser output) static jam

Type 1 fuser Fuser pa ge count has

exceeded life.

202.57 Sensor (fuser output) lingering jam.

Type 1 fuser Fuser pa ge count has

exceeded life.

202.59 Sensor (fuser output) lingering jam.

Type 1 fuser Fuser pa ge count has

exceeded life.

202.60 Sensor (fuser output) lingering jam.

Destination is output option.

Type 1 fuser Fuser pa ge count has

exceeded life.

Media remains on the sensor (fuser output) during the warm up sequence.

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did not reach the sensor

(narrow media)

Go to sensor (fuser output) static jam ser vice check.

See “Sensor (fuser output)

static jam service check” on page 2-136.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

ingering ja

m service check .”

on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Diagnostic information 2-23

Page 61

7462

Error

code or

Error contents Description/Action Possible repair actions

message

202.61 Sensor (fuser output) lingering jam.

Destination is standard bin.

Type 1 fuser Fuser pa ge count has

exceeded life.

202.62 Sensor (fuser output) lingering jam.

Destination is output option.

Type 1 fuser Fuser pa ge count has

exceeded life.

202.63 Sensor (fuser output) static jam

and Sensor (narrow

media) static jam Type 1 fuser Fuser pa ge count has

exceeded life.

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did reach the sensor

(narrow media)

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did reach the sensor

(narrow media)

Media remains on the sensor (fuser output) and the sensor (narrow media) during the warm up sequence.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

1.Go to sensor (fuser output) static jam ser vice check. See “Sens o r (fus er

output) sta tic jam service check” on page 2-136.

2.Go to sensor (narrow media) static jam service check. See “Sensor

(narrow medi a) static jam service check” on page 2-137.

Go Back

202.75 Paper jam around fuser exit or redrive area.

Type 2 fuser Fuser pa ge count has

exceeded life.

202.76 Sensor (fuser output) lingering jam.

Destination is standard bin.

Type 2 fuser Fuser pa ge count has

exceeded life.

202.77 Sensor (fuser output) lingering jam.

Type 2 fuser Fuser pa ge count has

exceeded life.

Page may be jammed in fuser exit or redrive area.

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and

edia did not r

each the sensor

(narrow media)

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Go to sensor (fuser output) service check. See

“Sensor (fuser output) service check” on page 2-108.

5.Go to sensor (narrow media) service check. See

“Sensor (narrow media) service check” on page 2-109.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

2-24 Service Manual

Page 62

7462

Error

code or

Error contents Description/Action Possible repair actions

message

202.78 Sensor (narrow media) static jam

Type 2 fuser Fuser pa ge count has

exceeded life.

202.79 Sensor (fuser output) bounce

Type 2 fuser Fuser pa ge count has

exceeded life.

202.81 Sensor (fuser output) static jam

Type 2 fuser Fuser pa ge count has

exceeded life.

202.82 Sensor (fuser output) lingering jam.

Type 2 fuser Fuser pa ge count has

exceeded life.

Media remains on the sensor (narrow media) during the warm up sequence.

The sensor (fuser output) rebounded once the trailing edge of the media passed.

Media remains on the sensor (fuser output) during the warm up sequence.

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

1.Go to sensor (fuser output) static jam ser vice check. See “Sens o r (fus er

output) sta tic jam service check” on page 2-136.

2.Go to sensor (narrow media) static jam service check. See “Sensor

(narrow medi a) static jam service check” on page 2-137.

Go to sensor (fuser output) service check.

See “Sensor (fuser output)

service check” on page 2-108.

Go to sensor (fuser output) static jam ser vice check.

See “Sensor (fuser output)

static jam service check” on page 2-136.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go Back

202.84 Sensor (fuser output) lingering jam.

Type 2 fuser Fuser pa ge count has

exceeded life.

202.85 Sensor (fuser output) lingering jam.

Destination is output option.

Type 2 fuser Fuser pa ge count has

exceeded life.

86 Sensor (fuser

202.

output)

lingering jam. Destination is

standard bin. Type 2 fuser Fuser pa ge count has

exceeded life.

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did not reach the sensor

(narrow media)

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did reach the sensor

(narrow media)

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

Diagnostic information 2-25

Page 63

7462

Error

code or

Error contents Description/Action Possible repair actions

message

202.87 Sensor (fuser output) lingering jam.

Destination is output option.

Type 2 fuser Fuser pa ge count has

Media reached the sensor (fuser output) but did not clear it in the specifie d time.

and Media did reach the sensor

(narrow media)

exceeded life.

202.88 Sensor (fuser output) static jam

and

Media remains on the sensor (fuser output) and the sensor (narrow media) during the

warm up sequence. Sensor (narrow media) static jam

Type 2 fuser Fuser pa ge count has

exceeded life.

202.99 Fuser ID chip failure The system does no t recogniz e the ID chip on the fuser unit.

Go to sensor (fuser output) lingerin g jam service check.

See “Sensor (fuser output)

lingering j am service check.” on page 2-134.

1.Go to sensor (fuser output) static jam ser vice check. See “Sens o r (fus er

output) sta tic jam service check” on page 2-136.

2.Go to sensor (narrow media) static jam service check. See “Sensor

(narrow medi a) static jam service check” on page 2-137.

Replace the fuser unit assembly.

Go to “Fuser unit assembly

removal” on page 4-15.

Go Back

203.00 Paper jam around redrive area.

203.01 Internal duplex drive motor con tr o l fa ilu r e.

Internal duplex

Page may be jammed in redrive area.

The internal dupl ex d rive mot or motor does not reach the proper operating speed at the specified time.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Go to sensor (fuser output) service check. See

“Sensor (fuser output) service check” on page 2-108.

5.Go to sensor (narrow media) service check. See

“Sensor (narrow media) service check” on page 2-109.

1.Remove all media present in media path.

2.Check all connections on the duplex media ent rance drive motor assembly.

3.Check all connections on the system card assem bly.

4.Replace the duplex media entrance drive motor assembly if prob lem remains. Go to “Duplex

drive motor assembly removal” on page 4-9.

2-26 Service Manual

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Error

code or

Error contents Description/Action Possible repair actions

message

203.08 Redrive motor load error

203.10 Redrive motor control failure.

Media tray 1

The redrive motor assembly has failed or caused high mechanical load dur ing the warm up sequence.

The redrive motor does not reach the proper operating speed at the specified time.

1.Remove all media present in media path.

2.Ensure that upper redive assembly is proper ly installed.

3.Check all connections on the redrive motor assembly.

4.Check all connections on the system card assem bly.

5.Replace the redrive motor assembly if prob lem remains. Go to “Redrive

motor assembly removal ” on page 4-38.

1.Remove all media present in media path.

2.Ensure that upper redive assembly is proper ly installed.

3.Check all connections on the redrive motor assembly.

4.Check all connections on the system card assem bly.

5.Replace the redrive motor assembly if prob lem remains. Go to “Redrive

motor assembly removal ” on page 4-38.

Go Back

203.18 Redrive motor assembly underspe ed error.

203.20 Redrive motor lost encoder fail ure

The redrive motor assembly does not rotat e at the specif ied speed.

The redrive motor is not reporting pulses back to the engine.

1.Remove all media present in media path.

2.Ensure that upper redive assembly is proper ly installed.

3.Check all connections on the redrive motor assembly.

4.Check all connections on the system card assem bly.

5.Replace the redrive motor assembly if prob lem remains. Go to “Redrive

motor assembly removal ” on page 4-38.

1.Check all connections on the redrive motor assembly.

2.Check all connections on the system card assem bly.

3.Replace the redrive motor assembly if prob lem remains. Go to “Redrive

motor assembly removal ” on page 4-38

Diagnostic information 2-27

Page 65

7462

Error

code or

Error contents Description/Action Possible repair actions

message

230.00 Paper jam around internal duplex.

Source = Internal duplex

230.01 Sensor (duplex input) lingering jam

Source = Internal duplex

230.02 Sensor (duplex input) late jam

Source = Internal duplex

Page may be jammed in internal duplex area.

Media reached the sensor (duplex input) b ut di d not cl ear it in the specifie d time.

Media is late reaching t he sensor (duplex input) within the specified time.

1.Remove all media present in media path.

2.Check for obstructions in media path.

3.Go to sensor (fuser output) service check. See

“Sensor (fuser output) service check” on page 2-108.

4.Go to sensor (duplex input) service check. See

“Sensor (duplex input) service check” on page 2-109.

Go to sensor (duplex input) lingerin g jam service check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (dup lex input) l ate jam service check.

See “Sensor (duplex input)

late jam service check.” on page 2-138.

Go Back

230.03 Sensor (duplex input) bounce

Source = Internal duplex

230.04 Sensor (input) late jam from duplex

Source = Internal duplex

230.05 sensor (duplex input) lingering jam

Source = Internal duplex

230.06 Sensor (input) late jam from duplex

Source = Internal duplex

230.07 Sensor (input) late jam from duplex

Source = Internal duplex

The sensor (duplex input) rebounded once the trailing edge of the media passed.

Media is late reaching t he sensor (input) within the specified time during the second side printing using the internal duplex.

Media reached the sensor (duplex input) b ut di d not cl ear it in the specifie d time.

Media is late reaching t he sensor (input) within the specified time during the second side printing using the internal duplex.

Go to sensor (duplex input) service check. See “Sensor

(duplex input) service check” on page 2-109.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (duplex input) lingerin g jam service check.

See “Sensor (pass through)

late jam service check” on page 2-142.

o to sensor

(input) late jam

service check. See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

2-28 Service Manual

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Error

code or

Error contents Description/Action Possible repair actions

message

230.08 Internal duplex drive motor load error

Source = Internal duplex

230.10 Internal duplex drive motor con tr o l fa ilu r e.

Source = Internal duplex

The internal dupl ex d rive mot or assembly has failed or caused high mechanical load during warm up sequence.

The internal dupl ex d rive mot or motor does not reach the proper operating speed at the specified time.

1.Remove all media present in media path.

2.Check all connections on the duplex media ent rance drive motor assembly.

3.Check all connections on the system card assem bly.

4.Replace the duplex drive motor assembly if probl em remains. Go to “Duplex

drive motor assembly removal” on page 4-9.

1.Remove all media present in media path.

2.Check all connections on the duplex media ent rance drive motor assembly.

3.Check all connections on the system card assem bly.

4.Replace the duplex media entrance drive motor assembly if prob lem remains. Go to “Duplex

drive motor assembly removal” on page 4-9.

Go Back

230.13 sensor (duplex input) static jam

Source = Internal duplex

230.14 Paper jam around internal duplex.

Source = Internal duplex

230.18 Internal duplex drive motor assembly underspeed error.

Source = Internal duplex

Media remains on the sensor (duplex input) during the warm up sequence.

Page may be jammed in internal duplex area.

The internal dupl ex d rive mot or does not rotat e at the specif ied speed.

Go to sensor (duplex input) static jam ser vice check.

See “Sensor (duplex input)

lingering j am service check.” on page 2-140.

1.Remove all media present in media path.

2.Check for obstructions in media path.

3.Go to sensor (fuser output) service check. See

“Sensor (fuser output) service check” on page 2-108.

4.Go to sensor (duplex input) service check. See

“Sensor (duplex input) service check” on page 2-109.

1.Remove all media present in media path.

2.Check all connections on the duplex media ent rance drive motor assembly.

3.Check all connections on the system card assem bly.

4.Replace the duplex media entrance drive motor assembly if prob lem remains. Go to “Duplex

drive motor assembly r

emoval” on pa

ge 4-9.

Diagnostic information 2-29

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Error

code or

Error contents Description/Action Possible repair actions

message

230.20 Internal duplex drive motor lost encoder failure

Source = Internal duplex

231.00 Sensor (duplex input) late jam

Source = External duplex

232.00 Sensor (duplex input) lingering jam

Source = External duplex

The internal dupl ex d rive mot or is not reporting pulses back to the engine.

Media is late reaching t he sensor (duplex input) within the specified time.

Media reached the sensor (duplex input) b ut di d not cl ear it in the specifie d time.

1.Remove all media present in media path.

2.Check all connections on the duplex media ent rance drive motor assembly.

3.Check all connections on the system card assem bly.

4.Replace the duplex drive motor assembly if probl em remains. Go to “Duplex

drive motor assembly removal” on page 4-9.

Go to sensor (dup lex input) l ate jam service check.

See “Sensor (duplex input)

late jam service check.” on page 2-138.

Go to sensor (duplex input) lingerin g jam service check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go Back

233.00 Sensor (duplex double-feed) late jam

Source = External duplex

Media is late reaching t he sensor (duplex double-feed) within the specified ti m e.

1.Remove all media present in media path.

2.Check for obstructions in media path.

3.Ensure the external duplex assembly is proper ly installed.

4.Ensure the rear door of the external duplex is fully closed.

5.Check all connections on the external duplex assembly.

6.Replace the external duplex assembly if pr oblem remains.

2-30 Service Manual

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Error

code or

Error contents Description/Action Possible repair actions

message

234.00 Sensor (duplex exit) late jam

Source = External duplex

235.00 Sensor (duplex double-fee d) lingering jam

Source = External duplex

Media is late reaching t he sensor (duplex exit) within the specified time.

Media reached the sensor (duplex doubl e-feed) within the specified time but did not clear it within the speci fi ed ti m e.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Ensure the rear door of the external duplex is fully closed.

6.Check sensor (duplex exit) for proper operation. See

“Sensor (duplex exit) service check (external duplex only)” on page 2-110.

7.Check all connections on the external duplex assembly.

8.Replace the external duplex assembly if pr oblem remains.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Replace the external duplex assembly if pr oblem remains.

Go Back

236.00 Sensor (duplex exit) lingering jam

Source = External duplex

237.00 Sensor (input) late jam from duplex

Source = External duplex

Media reached the sensor (dup lex ex i t ) w it h in the specified time but did not clear it within the speci fi ed ti m e.

Media is late reaching t he sensor (input) within the specified time during the second side printing using the external duplex.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Check sensor (duplex exit) for proper operation.See

“Sensor (duplex exit) service check (external duplex only)” on page 2-110.

6.Replace the external duplex assembly if pr oblem remains.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Diagnostic information 2-31

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7462

Error

code or

Error contents Description/Action Possible repair actions

message

237.07 Paper jam around external duplex

Source = External duplex.

Page may be jammed in external duplex area.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Ensure the rear door of the external duplex is fully closed.

6.Ensure the external duplex tray is fully closed.

7.Ensure the media tray 1 is fully closed.

8. Chec k the lo wer op t i o n drive (PTO) assembl y for damage.

9.Check all connections on the external duplex assembly.

10.Replace the external duplex assembly if pr oblem remains.

Go Back

238.00 External duplex sensor stati c jam

Source = External duplex

238.01 Sensor (duplex input) static jam

Source = External duplex

238.02 Sensor (duplex exit) static jam

Source = External duplex

238.03 Sensor (duplex input) static jam

Sensor (duplex exit) static jam

Source = External duplex

Media remains on a sensor within the external duplex assembly during the warm up sequence.

Media remains on the sensor (duplex input) during the warm up sequence.

Media remains on the sensor (duplex exit) during the warm up sequence.

Media remains on the sensor (duplex input) and the sensor (duplex exit) during the warm up sequence.

1.Remove all media present in media path.

2.Replace the external duplex assembly if pr oblem remains.

Go to sensor (duplex input) static jam ser vice check.

See “Sensor (duplex input)

lingering j am service check.” on page 2-140.

1.Remove all media present in media path.

2.Go to sensor (duplex exit) service check. See

“Sensor (duplex exit) service check (external duplex only)” on page 2-110.

3.Replace the external duplex assembly if pr oblem remains.

Go to sensor (duplex input) static jam ser vice check.

See “Sensor (duplex input)

lingering j am service check.” on page 2-140.

2-32 Service Manual

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Error

code or

Error contents Description/Action Possible repair actions

message

238.04 Sensor (duplex double-feed) static jam

Source = External duplex

238.05 Sensor (duplex input) static jam

Sensor (double-feed) static jam

Source = External duplex

238.06 Sensor (duplex exit) static jam

Sensor (double-feed) static jam

Source = External duplex

Media remains on the sensor (duplex doubl e-feed) during t he warm up sequence.

Media remains on the sensor (duplex input) and the sensor (double-feed) duri ng the warm up sequence.

Media remains on the sensor (duplex exit) and the sensor (double-feed) duri ng the warm up sequence.

1.Remove all media present in media path.

2.Replace the external duplex assembly if pr oblem remains.

1. Remove all medi a present in media path.

2. Go to sensor (duplex input) static jam ser vice check.

See “Sensor (duplex input)

lingering j am service check.” on page 2-140.

1.Remove all media present in media path.

2.Go to sensor (duplex exit) service check. See

“Sensor (duplex exit) service check (external duplex only)” on page 2-110.

3.Replace the external duplex assembly if pr oblem remains.

Go Back

238.07 Sensor (duplex input) static jam

Sensor (double-feed) static jam

Sensor (duplex exit) Source = External

duplex

239.00 Mechanical feed error or timing error.

Source = External duplex

Media remains on the sensor (duplex input), sensor (doublefeed) and the sensor (du p lex exit) during the warm up sequence.

Mechanical feed error or timin g error.

Go to sensor (duplex input) static jam ser vice check.

See “Sensor (duplex input)

lingering j am service check.” on page 2-140.

1.Remove all media present in media path.

2.Check sensor (duplex input) for proper operation. See “Sensor (duplex

input) service check” on page 2-109.

3.Check sensor (duplex exit) for proper operation. See

“Sensor (duplex exit) service check (external duplex only)” on page 2-110.

4.Replace the external duplex assembly if pr oblem remains.

Diagnostic information 2-33

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Error

code or

Error contents Description/Action Possible repair actions

message

239.01 External duplex assembly er ror

Source = External duplex

239.02 External duplex assembly er ror

Source = External duplex

Mechanical feed error or timin g error.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Ensure the rear door of the external duplex is fully closed.

6.Check all connections on the external duplex assembly.

7.Replace the external duplex assembly if pr oblem remains.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Ensure the rear door of the external duplex is fully closed.

6.Check all connections on the external duplex assembly.

7.Replace the external duplex assembly if pr oblem remains.

Go Back

239.03 Device controls

2-34 Service Manual

response error. Source = External

duplex

Mechanical feed error or timin g error.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Ensure the rear door of the external duplex is fully closed.

6.Check all connections on the external duplex assembly.

7.Replace the external duplex assembly if pr oblem remains.

Page 72

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Error

code or

Error contents Description/Action Possible repair actions

message

239.04 Input device ready response error.

Source = External duplex

239.05 Output device response error.

Source = External duplex

Mechanical feed error or timin g error.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Ensure the rear door of the external duplex is fully closed.

6.Check all connections on the external duplex assembly.

7.Replace the external duplex assembly if pr oblem remains.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Ensure the rear door of the external duplex is fully closed.

6.Check all connections on the external duplex assembly.

7.Replace the external duplex assembly if pr oblem remains.

Go Back

239.06 Failed the last page of a staple job.

Source = External duplex

Mechanical feed error or timin g error.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Ensure the rear door of the external duplex is fully closed.

6.Check all connections on the external duplex assembly.

7.Replace the external duplex assembly if pr oblem remains.

Diagnostic information 2-35

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7462

Error

code or

Error contents Description/Action Possible repair actions

message

239.07 Select output device error.

Source = External duplex

239.08 Input source ready error.

Source = External duplex

Mechanical feed error or timin g error.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Ensure the rear door of the external duplex is fully closed.

6.Check all connections on the external duplex assembly.

7.Replace the external duplex assembly if pr oblem remains.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

4.Ensure the external duplex assembly is proper ly installed.

5.Ensure the rear door of the external duplex is fully closed.

6.Check all connections on the external duplex assembly.

7.Replace the external duplex assembly if pr oblem remains.

Go Back

239.11 Sensor (input) late

241.00 Media tray 1 area jam

2-36 Service Manual

jam from duplex Source = External

duplex

Source = Tray 1

Media is late reaching t he sensor (input) within the specified time during the second side printing using the external duplex.

The media is jammed in the media tray 1 area.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

Page 74

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Error

code or

Error contents Description/Action Possible repair actions

message

241.01 Pick motor control failure.

Media tray 1

241.06 Sensor (input) late jam

Source = Tray 1 or MPF

241.07 Pick motor load error Source = Media tray 1

The pick motor does not reac h the proper operating speed at the specified time.

The media is late reaching t he sensor (input) within the specified time.

The pick motor has failed or caused high mechanical load due to paper jam or bind.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check, clean or repl ace the pick rolls for wear and excess contamination. Go to “Pick roll assembly

removal” on page 4-31.

4.Check all connections on the pick arm assembly.

5.Check all connections on the system card assem bly.

6.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

7.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go Back

Diagnostic information 2-37

Page 75

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Error

code or

Error contents Description/Action Possible repair actions

message

241.08 Pick motor load error Source = Media tray 1

241.10 Sensor (input) late jam

Source = Tray 1

The pick motor has failed or caused high mechanical load due to paper jam or bind.

The media is late reaching t he sensor (input) within the specified time.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check, clean or repl ace the pick rolls for wear and excess contamination. Go to “Pick roll assembly

removal” on page 4-31.

4.Check all connections on the pick arm assembly.

5.Check all connections on the system card assem bly.

6.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

7.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go Back

241.11 Sensor (input) late jam

Source = Tray 1

241.12 Sensor (input) late jam

Source = Tray 1 or envelope feeder

241.14 Sensor (input) late jam

Source = Tray 1 or envelope feeder

241.15 Sensor (input) late jam

Source = Tray 1 or envelope feeder

16 Sensor (input

241.

) late

jam Source = Tray 1

The media is late reaching t he sensor (input) within the specified time.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

2-38 Service Manual

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Error

code or

Error contents Description/Action Possible repair actions

message

241.18 Sensor (input) late jam

Source = Tray 1

241.19 Pick motor control failure.

Source = Tray 1

241.20 Tray 1 pick motor lost encoder fail ure

Source = Tray 1

The media is late reaching t he sensor (input) within the specified time.

The pick motor does not reac h the proper operating speed at the specified time.

The pick motor is not report ing pulses back to the engine.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

1.Check all connections on the pick arm assembly.

2.Check all connections on the system card assem bly.

3.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

Go Back

242.00 Media tray 2 area jam Source = Tray 2

242.02 Sensor (pass through) late jam

Source = Tray 2

242.03 Sensor (pass through) late jam

Source = Tray 2

242.04 Sensor (pass through) late jam

Source = Tray 2

The media is jammed in the media tray 2 area.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See

“Sensor (pass through)

ate jam service

check” on

page 2-142.

Diagnostic information 2-39

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7462

Error

code or

Error contents Description/Action Possible repair actions

message

242.05 Sensor (pass through) late jam

Source = Tray 2

242.06 Sensor (pass through) late jam

Source = Tray 2

242.08 Sensor (pass through) lingering jam

Source = Tray 2

242.09 Sensor (input) late jam

Source = Tray 2

242.10 sensor (pass through) late jam

Source = Tray 2

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

Media reached the sensor (pass through) withi n the specified time but did not clear it within the speci fi ed ti m e.

The media is late reaching t he sensor (input) within the specified time.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) lingerin g jam service check.

See “Sensor (pass through)

lingering j am service check.” on page 2-143.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go Back

242.13 Sensor (pass through) static jam

Source = Tray 2

242.16 sensor (pass through) late jam

Source = Tray 2

242.17 Media tray pulled jam Source = Tray 2

242.18 Pick retry timeout Source = Tray 2

242.19 Pick retry timeout Source = Tray 2

Media remains on the sensor (input) during the warm up sequence.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

A media tray above the source tray was pulled during t he printing process.

The engi

ne timed out wa

iting for the tray 2 to report ready before the first pick attempt.

The engine timed out waiti ng for the tray 2 to report ready before a pick retry att em pt.

Go to sensor (pass through) static jam ser vice check.

See “Sensor (pass through)

static jam service check” on page 2-144.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

1.Remove all media present in media path.

2.Close all media trays.

Turn the machine off/on.

2-40 Service Manual

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7462

Error

code or

Error contents Description/Action Possible repair actions

message

242.52 Tray 2 pick motor overrun fa ilure

Source = Tray 2

242.33 Tray 2 not ready Source = Tray 2

242.34 Empty tray pick attempted

Source = Tray 2

The Pick motor encoder continues to detect pul ses after the motor was turned off.

Tray was not properly pushed into the machine.

The pick arm attempted to pick with no media in the tray.

1.Check all connections on the pick arm assembly.

2.Check all connections on the system card assem bly.

3.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

1.Check the size sensing fingers on the media tray for damage

2.Replace the media tray assembly if prob lem remains.

3.Check the switch (media size) for pro per connection.

4.Replace the switch (media size ) if problem remains. Go to “Switch (media

size) assembly removal” on page 4-45.

1.Check the media out actuator for damage.

2.Replace the media out actuator if problem remains . G o to “Media out

actuator removal” on page 4-23.

Go Back

242.36 Sensor (pass through) static jam

Source = Tray 2

242.37 Sensor (pass through) late jam

Source = Tray 2

Media remains on the sensor (input) during the warm up sequence.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

242.39 Media tray pulled jam A media tray above the source

tray was pulled during t he printing process.

242.40 Sensor (pass through) lingering jam

Source = Tray 2

Media reached the sensor (pass through) withi n the specified time but did not clear it within the speci fi ed ti m e.

Go to sensor (pass through) static jam ser vice check.

See “Sensor (pass through)

static jam service check” on page 2-144.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

1.Remove all media present in media path.

2.Close all media trays.

Go to sensor (pass through) lingerin g jam service check.

See “Sensor (pass through)

lingering j am service check.” on page 2-143.

Diagnostic information 2-41

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Error

code or

Error contents Description/Action Possible repair actions

message

242.49 HCIT tray lift motor stalled fail ure

Source = Tray 2

242.50 HCIT tray lift motor underspeed failure

Source = Tray 2

The HCIT tray lift motor has stalled or has become obstructed.

The HCIT tray lift motor does not rotate at the specified speed.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray li ft dr ive motor assembly for binding or damage.

3. Replace the HCIT tray lif t motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167.

Go Back

242.52 HCIT tray lift motor overrun fa ilure

Source = Tray 2

The HCIT tray lift motor continues to detect pul ses after the motor has turned off.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167.

2-42 Service Manual

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Error

code or

Error contents Description/Action Possible repair actions

message

242.65 Pick motor load error Source = Media tray 2

242.66 Pick motor underspeed failure

Source = Media tray 2

The pick motor has failed or caused high mechanical load due to paper jam or bind.

The pick motor does not rota te at the specified speed.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check, clean or repl ace the pick rolls for wear and excess contamination. Go to “Pick roll assembly

removal” on page 4-31.

4.Check all connections on the pick arm assembly.

5.Check all connections on the system card assem bly.

6.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

7.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go Back

242.67 Pick motor over speed failure

Source = Media tray 2

The pick motor does not rota te at the specified speed.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Diagnostic information 2-43

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Error

code or

Error contents Description/Action Possible repair actions

message

242.68 Pick motor stop error Source = Media tray 2

242.69 Pick motor control failure.

Source = Media tray 2

Pick motor stop error detected by options tray x

The pick motor does not reac h the proper operating speed at the specified time.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go Back

243.00 Media tray 3 area jam The m edia is jammed in the

243.02 Sensor (pass through)

243.03 Sensor (pass through)

243.04 Sensor (pass through)

2-44 Service Manual

late jam Source = Tray 3

media tray 3 area.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

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Error

code or

Error contents Description/Action Possible repair actions

message

243.05 Sensor (pass through) late jam

Source = Tray 3

243.06 Sensor (pass through) late jam

Source = Tray 3

243.08 Sensor (pass through) lingering jam

Source = Tray 3

243.10 Sensor (pass through) late jam

Source = Tray 3

243.13 Sensor (pass through) static jam

Source = Tray 3

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

Media reached the sensor (pass through) withi n the specified time but did not clear it within the speci fi ed ti m e.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

Media remains on the sensor (input) during the warm up sequence.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) lingerin g jam service check.

See “Sensor (pass through)

lingering j am service check.” on page 2-143.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) static jam ser vice check.

See “Sensor (pass through)

static jam service check” on page 2-144.

Go Back

243.16 Sensor (pass through) late jam

Source = Tray 3

243.17 Media tray pulled jam Source = Tray 3

243.18 Pick retry timeout Source = Tray 3

243.19 Pick retry timeout Source = Tray 3

243.33 Tray 3 not ready Source = Tray 3

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

A media tray above the source tray was pulled during t he printing process.

The engine timed out waiti ng for the tray 3 to report ready before the first pick attempt.

The engine timed out waiti ng for the tray 3 to report ready before a pick retry att em pt.

Tray was not properly pushed

nto the m

achine.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

1.Remove all media present in media path.

2.Close all media trays.

Turn the machine off/on.

1.Check the size sensing fingers on the media tray for damage

2.Replace the media tray assembly if prob lem remains.

3.Check the switch (media size) for pro per connection.

4.Replace the switch (media size ) if problem remains. Go to “Switch (media

size) assembly removal” on page 4-45.

Diagnostic information 2-45

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Error

code or

Error contents Description/Action Possible repair actions

message

243.34 Empty tray pick attempted

Source = Tray 3

243.36 Sensor (pass through) static jam

Source = Tray 3

243.37 Sensor (pass through) late jam

Source = Tray 3

243.39 Media tray pulled jam Source = Tray 3

243.40 Sensor (pass through) lingering jam

Source = Tray 3

The pick arm attempted to pick with no media in the tray.

Media remains on the sensor (input) during the warm up sequence.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

A media tray above the source tray was pulled during t he printing process.

Media reached the sensor (pass through) withi n the specified time but did not clear it within the speci fi ed ti m e.

1.Check the media out actuator for damage.

2.Replace the media out actuator if problem remains . G o to “Media out

actuator removal” on page 4-23.

Go to sensor (pass through) static jam ser vice check.

See “Sensor (pass through)

static jam service check” on page 2-144.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

1.Remove all media present in media path.

2.Close all media trays.

Go to sensor (pass through) lingerin g jam service check.

See “Sensor (pass through)

lingering j am service check.” on page 2-143.

Go Back

243.49 HCIT tray lift motor stalled fail ure

Source = Tray 3

243.50 HCIT tray lift motor underspeed failure

Source = Tray 3

The HCIT tray lift motor has stalled or has become obstructed.

The HCIT tray lift motor does not rotate at the specified speed.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167

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Error

code or

Error contents Description/Action Possible repair actions

message

243.52 HCIT tray lift motor overrun fa ilure

Source = Tray 3

243.65 Pick motor load error Source = Media tray 3

The HCIT tray lift motor continues to detect pul ses after the motor has turned off.

The pick motor has failed or caused high mechanical load due to paper jam or bind.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check, clean or repl ace the pick rolls for wear and excess contamination. Go to “Pick roll assembly

removal” on page 4-31.

4.Check all connections on the pick arm assembly.

5.Check all connections on the system card assem bly.

6.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

7.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go Back

243.66 Pick motor underspeed failure

Source = Media tray 3

The pick motor does not rota te at the specified speed.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Diagnostic information 2-47

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Error

code or

Error contents Description/Action Possible repair actions

message

243.67 Pick motor over speed failure

Source = Media tray 3

243.68 Pick motor stop error Source = Media tray 3

The pick motor does not rota te at the specified speed.

Pick motor stop error detected by options tray x

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go Back

243.69 Pick motor control

2-48 Service Manual

failure. Source = Media tray 3

The pick motor does not reac h the proper operating speed at the specified time.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

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Error

code or

Error contents Description/Action Possible repair actions

message

244.00 Media tray 4 area jam The m edia is jammed in the media tray 4 area.

244.02 Sensor (pass through)

late jam Source = Tray 4

244.03 Sensor (pass through)

late jam Source = Tray 4

244.04 Sensor (pass through)

late jam Source = Tray 4

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go Back

244.05 Sensor (pass through) late jam

Source = Tray 4

244.06 Sensor (pass through) late jam

Source = Tray 4

244.08 Sensor (pass through) lingering jam

Source = Tray 4

244.10 Sensor (pass through) late jam

Source = Tray 4

244.13 Sensor (pass through) static jam

urce = Tray

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

Media reached the sensor (pass through) withi n the specified time but did not clear it within the speci fi ed ti m e.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

Media remains on the sensor (input) during the warm up sequence.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) lingerin g jam service check.

See “Sensor (pass through)

lingering j am service check.” on page 2-143.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) static jam ser vice check.

See “Sensor (pass through)

static jam service check” on page 2-144.

244.16 Sensor (pass through) late jam

Source = Tray 4

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Diagnostic information 2-49

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Error

code or

Error contents Description/Action Possible repair actions

message

244.17 Media tray pulled jam A media tray above the source tray was pulled during t he printing process.

244.18 Pick retry timeout

Source = Tray 4

244.19 Pick retry timeout

Source = Tray 4

244.33 Tray 4 not ready

Source = Tray 4

The engine timed out waiti ng for the tray 4 to report ready before the first pick attempt.

The engine timed out waiti ng for the tray 4 to report ready before a pick retry att em pt.

Tray was not properly pushed into the machine.

1.Remove all media present in media path.

2.Close all media trays.

Turn the machine off/on.

1.Check the size sensing fingers on the media tray for damage

2.Replace the media tray assembly if prob lem remains.

3.Check the switch (media size) for pro per connection.

4.Replace the switch (media size ) if problem remains. Go to “Switch (media

size) assembly removal” on page 4-45.

Go Back

244.34 Empty tray pick attempted

Source = Tray 4

244.36 Sensor (pass through) static jam

Source = Tray 4

244.37 Sensor (pass through) late jam

Source = Tray 4

244.39 Media tray pulled jam Source = Tray 4

244.40 Sensor (pass through) lingering jam

Source = Tray 4

The pick arm attempted to pick with no media in the tray.

Media remains on the sensor (input) during the warm up sequence.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

A media tray above the source tray was pulled during t he printing process.

Media reached the sensor (pass through) withi n the specified time but did not clear it within the speci fi ed ti m e.

1.Check the media out actuator for damage.

2.Replace the media out actuator if problem remains . G o to “Media out

actuator removal” on page 4-23.

Go to sensor (pass through) static jam ser vice check.

See “Sensor (pass through)

static jam service check” on page 2-144.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

1.Remove all media present in media path.

2.Close all media trays.

Go to sensor (pass through) lingerin g jam service check.

See “Sensor (pass through)

lingering j am service check.” on page 2-143.

2-50 Service Manual

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Error

code or

Error contents Description/Action Possible repair actions

message

244.49 HCIT tray lift motor stalled fail ure

Source = Tray 4

244.50 HCIT tray lift motor underspeed failure

Source = Tray 4

The HCIT tray lift motor has stalled or has become obstructed.

The HCIT tray lift motor does not rotate at the specified speed.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167.

Go Back

244.52 HCIT tray lift motor overrun fa ilure

Source = Tray 4

The HCIT tray lift motor continues to detect pul ses after the motor has turned off.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167.

Diagnostic information 2-51

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Error

code or

Error contents Description/Action Possible repair actions

message

244.65 Pick motor load error Source = Media tray 4

244.66 Pick motor underspeed failure

Source = Media tray 4

The pick motor has failed or caused high mechanical load due to paper jam or bind.

The pick motor does not rota te at the specified speed.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check, clean or repl ace the pick rolls for wear and excess contamination. Go to “Pick roll assembly

removal” on page 4-31.

4.Check all connections on the pick arm assembly.

5.Check all connections on the system card assem bly.

6.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

7.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go Back

244.67 Pick motor over speed

2-52 Service Manual

failure Source = Media tray 4

The pick motor does not rota te at the specified speed.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

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Error

code or

Error contents Description/Action Possible repair actions

message

244.68 Pick motor stop error Source = Media tray 4

244.69 Pick motor control failure.

Source = Media tray 4

Pick motor stop error detected by options tray x

The pick motor does not reac h the proper operating speed at the specified time.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go Back

245.00 Media tray 5 area jam The m edia is jammed in the media tray 5 area.

245.02 Sensor (pass through)

late jam Source = Tray 5

245.03 Sensor (pass through)

late jam Source = Tray 5

245.04 Sensor (pass through)

late jam Source = Tray 5

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

1.Remove all media present in media path.

2.Check media for proper installation.

3.Check for obstructions in media path.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Diagnostic information 2-53

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Error

code or

Error contents Description/Action Possible repair actions

message

245.05 Sensor (pass through) late jam

Source = Tray 5

245.06 Sensor (pass through) late jam

Source = Tray 5

245.08 Sensor (pass through) lingering jam

Source = Tray 5

245.10 Sensor (pass through) late jam

Source = Tray 5

245.13 Sensor (pass through) static jam

Source = Tray 5

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

Media reached the sensor (pass through) withi n the specified time but did not clear it within the speci fi ed ti m e.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

Media remains on the sensor (input) during the warm up sequence.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) lingerin g jam service check.

See “Sensor (pass through)

lingering j am service check.” on page 2-143.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

Go to sensor (pass through) static jam ser vice check.

See “Sensor (pass through)

static jam service check” on page 2-144.

Go Back

245.16 Sensor (pass through) late jam

Source = Tray 5

245.17 Media tray pulled jam Source = Tray 5

245.18 Pick retry timeout Source = Tray 5

245.19 Pick retry timeout Source = Tray 5

245.33 Tray 5 not ready Source = Tray 5

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

A media tray above the source tray was pulled during t he printing process.

The engine timed out waiti ng for the tray 5 to report ready before the first pick attempt.

The engine timed out waiti ng for the tray 5 to report ready before a pick retry att em pt.

Tray was not properly pushed

nto the m

achine.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

1.Remove all media present in media path.

2.Close all media trays.

Turn the machine off/on.

1.Check the size sensing fingers on the media tray for damage

2.Replace the media tray assembly if prob lem remains.

3.Check the switch (media size) for pro per connection.

4.Replace the switch (media size ) if problem remains. Go to “Switch (media

size) assembly removal” on page 4-45.

2-54 Service Manual

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7462

Error

code or

Error contents Description/Action Possible repair actions

message

245.34 Empty tray pick attempted

Source = Tray 5

345.36 Sensor (pass through) static jam

Source = Tray 5

245.37 Sensor (pass through) late jam

Source = Tray 5

245.39 Media tray pulled jam Source = Tray 5

245.40 Sensor (pass through) lingering jam

Source = Tray 5

The pick arm attempted to pick with no media in the tray.

Media remains on the sensor (input) during the warm up sequence.

The media is late reaching t he sensor (pass throu gh) wi thin the specified time.

A media tray above the source tray was pulled during t he printing process.

Media reached the sensor (pass through) withi n the specified time but did not clear it within the speci fi ed ti m e.

1.Check the media out actuator for damage.

2.Replace the media out actuator if problem remains . G o to “Media out

actuator removal” on page 4-23.

Go to sensor (pass through) static jam ser vice check.

See “Sensor (pass through)

static jam service check” on page 2-144.

Go to sensor (pass through) late jam servi ce check.

See “Sensor (pass through)

late jam service check” on page 2-142.

1.Remove all media present in media path.

2.Close all media trays.

Go to sensor (pass through) lingerin g jam service check.

See “Sensor (pass through)

lingering j am service check.” on page 2-143.

Go Back

245.49 HCIT tray lift motor stalled fail ure

Source = Tray 5

245.50 HCIT tray lift motor underspeed failure

Source = Tray 5

The HCIT tray lift motor has stalled or has become obstructed.

The HCIT tray lift motor does not rotate at the specified speed.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167

Diagnostic information 2-55

Page 93

7462

Error

code or

Error contents Description/Action Possible repair actions

message

245.52 HCIT tray lift motor overrun fa ilure

Source = Tray 5

245.65 Pick motor load error Source = Media tray 5

The HCIT tray lift motor continues to detect pul ses after the motor has turned off.

The pick motor has failed or caused high mechanical load due to paper jam or bind.

1. Ensure the HCIT media tray assembly is proper ly inserted into the machine.

2. Check the HCIT tray lift motor assembly for binding or damage.

3. Replace the HCIT tray lif t drive motor assembly if problem remains.

Go to “High capacity input

tray (HCIT) tray li ft d ri v e motor assembly removal ” on page 4-167.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check, clean or repl ace the pick rolls for wear and excess contamination. Go to “Pick roll assembly

removal” on page 4-31.

4.Check all connections on the pick arm assembly.

5.Check all connections on the system card assem bly.

6.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

7.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go Back

245.66 Pick motor

2-56 Service Manual

underspeed failure Source = Media tray 5

The pick motor does not rota te at the specified speed.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Page 94

7462

Error

code or

Error contents Description/Action Possible repair actions

message

245.67 Pick motor over speed failure

Source = Media tray 5

245.68 Pick motor stop error Source = Media tray 5

The pick motor does not rota te at the specified speed.

Pick motor stop error detected by options tray x

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go Back

245.69 Pick motor control failure.

Source = Media tray 5

250.00 MPF area jam Source = MPF

The pick motor does not reac h the proper operating speed at the specified time.

The media is jammed in the MPF area.

1.Remove all media present in media path.

2.Ensure media tray is not overfilled.

3.Check all connections on the pick arm assembly.

4.Check all connections on the system card assem bly.

5.Replace the pick arm assembly if prob lem remains. Go to “Pick arm

assembly removal” on page 4-29.

6.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go to sensor (input) service check.

See “Sensor (input) service

check” on page 2-108.

Diagnostic information 2-57

Page 95

7462

Error

code or

Error contents Description/Action Possible repair actions

message

250.03 Sensor (input) late jam

Source = MPF

250.06 Sensor (input) late jam

Source = MPF

250.07 Sensor (input) late jam

Source = MPF

250.08 Sensor (input) late jam

Source = MPF

250.09 Sensor (input) late jam

Source = MPF

The media is late reaching t he sensor (input) within the specified time.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go Back

250.10 Sensor (input) late jam

Source = MPF

250.11 Sensor (input) late jam

Source = MPF

260.00 Envelope feeder area jam

The media is late reaching t he sensor (input) within the specified time.

The media is jammed in the envelope feeder area.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

1.Remove the envelope feeder.

2.Remove all media present in media path.

3.Check media for proper installation.

4.Check for obstructions in

edia path.

5.Go t

o sensor (input ) service

check. See “Sensor

(input) service check” on page 2-108.

2-58 Service Manual

Page 96

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Error

code or

Error contents Description/Action Possible repair actions

message

260.01 Envelope feeder assembly er ror

260.02 Envelope feeder assembly er ror

Mechanical feed error or timin g error.

1.Remove the envelope feeder.

2.Remove all media present in media path.

3.Check media for proper installation.

4.Check for obstructions in media path.

5.Ensure the envelope feeder assembly is proper ly installed.

6.Check all connections on the envelope feeder assembly.

7.Replace the envelope feeder assembly if problem remains.

1.Remove the envelope feeder.

2.Remove all media present in media path.

3.Check media for proper installation.

4.Check for obstructions in media path.

5.Ensure the envelope feeder assembly is proper ly installed.

6.Check all connections on the envelope feeder assembly.

7.Replace the envelope feeder assembly if problem remains.

Go Back

260.05 Sensor (envelope feeder pass thr ough) lingering jam

Source = Envelope feeder

The media reached the sensor (envelope feeder pass th rough) but did not clear it in the specified time.

1.Remove the envelope feeder.

2.Remove all media present in media path.

3.Check for obstructions in media path.

4.Ensure the envelope feeder assembly is proper ly installed.

5.Check all connections on the envelope feeder assembly.

6.Replace the envelope feeder assembly if problem remains.

Diagnostic information 2-59

Page 97

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Error

code or

Error contents Description/Action Possible repair actions

message

260.06 Sensor (envelope feeder pass thr ough) late jam

Source = Envelope feeder

260.07 Sensor (input) late jam

Source = Envelope feeder

The media is late reaching t he sensor (envelope f eeder pass through) within the specified time.

The media is late reaching t he sensor (input) within the specified time.

1.Remove the envelope feeder.

2.Remove all media present in media path.

3.Ensure envelope feeder is not overfilled.

4.Check, clean or repl ace the envelope feeder pick rol l for wear and excess contamination.

5.Check all connections on the envelope feeder.

6.Check all connections on the system card assem bly.

7.Replace the envelope feeder assembly if problem remains.

8.Replace system card assembly if prob lem remains. Go to “System

card assembly removal” on page 4-50.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go Back

260.10 Sensor (input) late jam

Source = Envelope feeder

260.11 Sensor (input) late jam

Source = Envelope feeder

260.12 Sensor (input) late jam

Source = Envelope feeder

260.13 sensor (envelope feeder pass thr ough) static jam

260.14 Sensor (input) late jam

urce = Enve

lope

feeder

The media is late reaching t he sensor (input) within the specified time.

Media remains on the sensor (envelope feeder pass th rough) during the warm up sequence.

The media is late reaching t he sensor (input) within the specified time.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

1.Remove the envelope feeder.

2.Remove all media present in media path.

3.Replace the envelope feeder is problem remains.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

2-60 Service Manual

Page 98

7462

Error

code or

Error contents Description/Action Possible repair actions

message

260.15 Sensor (input) late jam

Source = Envelope feeder

260.16 Sensor (input) late jam

Source = Envelope feeder

271.03

x = bin number

Sensor (output pass through) lingering jam

Applies to: High capacity output Output expander

271.04

x = bin number

Sensor (output pass through) late jam

Applies to: High capacity output Output expander

The media is late reaching t he sensor (input) within the specified time.

The media reached the sensor (output pass through) but did not clear it in the specified time.

The media is late reaching t he sensor (output pas s thr ough) within the specified ti m e.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

Go to sensor (input) late jam service check.

See “Sensor (input ) la te ja m

service check.” on page 2-128.

See “Sensor (output pass

through) lingering jam service check” on page 2-147.

See “Sensor (output pass

through) late jam ser vice check” on page 2-146.

Go Back

271.05

x = bin number

27x.14 x = bin

number

Sensor (output pass through) lingering jam

Applies to: High capacity output Output expander

Sensor (output pass through) static jam

Applies to: High capacity stacker Mailbox Offset stacker Output expander

Sensor (mailbox empty) static jam

Applies to: Mailbox

The media reached the sensor (output pass through) but did not clear it in the specified time.

Media remains on the sensor (output pass through) during the warm up sequence.

Media remains on the sensor (mailbox empty) dur ing the warm up sequence.

See “Sensor (output pass

through) lingering jam service check” on page 2-147.

See “Sensor (output pass

through) static jam service check” on page 2-147.

See “Sensor (mailbox em pty)

atic jam servi

ce check” on

page 2-149.

Diagnostic information 2-61

Page 99

7462

Error

code or

message

27x.15 x = bin

number

27x.29 x = bin

number

Error contents Description/Action Possible repair actions

Sensor (output pass through) static jam

Applies to: High capacity stacker Mailbox

Media remains on the sensor (output pass through) during the warm up sequence.

Media remains on the sensor (mailbox empty) during the warm up sequence.

See “Sensor (output pass

through) static jam service check” on page 2-147.

See “Sensor (mailbox em pty)

static jam service check” on page 2-149.

Offset stacker Output expander

Sensor (mailbox empty) static jam

Applies to: Mailbox

Sensor (output pass through) lingering jam

Applies to:

The media reached the sensor (output pass through) but did not clear it in the specified time.

See “Sensor (output pass

through) lingering jam service check” on page 2-147.

Offset stacker Mailbox Output expander High capacity stacker

Go Back

27x.50 x = bin

number

27x.50 x = bin

number

27x.51 x = bin

number

Sensor (output pass through) lingering jam

Applies to: Mailbox

Left tamper does not leave home positi on failure

Applies to: Offset stacker

Sensor (output pass through) late jam

plies to

Ap Mailbox

The media reached the sensor (output pass through) but did not clear it in the specified time.

The sensor (left tamper HP) does not detect that the t amper has moved from home position.

The media is late reaching t he sensor (output pas s thr ough) within the specified ti m e.

See “Sensor (output pass

through) lingering jam service check” on page 2-147.

1. Check all the connect ions on the output option controller card.

2. Check the tamper drive belt for damage and replace if needed.

3. Replace the left tam per motor assembly.

Go to “MFP stapler assembly

tamper drive motor assembly removal” on page 4-210.

4. Replace the sensor (tamper HP).

Go to “MFP stapler assembly

sensor (tamper HP left and right) re moval” on page 4-217.

4. Replace the output option if problem remains.

See “Sensor (output pass

through) late jam ser vice check” on page 2-146

2-62 Service Manual

Page 100

7462

Error

code or

message

27x.51 x = bin

number

271.52

x = bin number

Error contents Description/Action Possible repair actions

Right tamper does not leave home positi on failure

Applies to: Offset stacker

The sensor (right tamper HP) does not detect that the t amper has moved from home position.

1. Check all the connect ions on the output option controller card.

2. Check the tamper drive belt for damage and replace if needed.

3. Replace the right t am per motor assembly.

Go to “MFP stapler assembly

tamper drive motor assembly removal” on page 4-210.

4. Replace the sensor (tamper HP).

Go to “MFP stapler assembly

sensor (tamper HP left and right) re moval” on page 4-217.

4. Replace the output option if problem remains.

Sensor (mailbox empty) lingering jam

Applies to:

The media reached the sensor (mailbox empty) but did not clear it in the speci fi ed time.

See “Sensor (mailbox em pty)

lingering jam service check” on page 2-148.

Mailbox

Go Back

27x.53 x = bin

number

27x.54 x = bin

number

27x.55 x = bin

number

27x.58 x = bin

number

28x.25 x = bin

number

Sensor (mailbox empty) late jam

Applies to: Mailbox

Sensor (output pass through) lingering jam

Applies to: Mailbox

Sensor (mailbox empty) lingering jam

Applies to: Mailbox

Sensor (output pass through) late jam

Applies to: Mailbox High capacity stacker Offset stacker

utput expander

O Invalid ejector motor

manager status. Applies to: StapleSmart fini sher

The media is late reaching t he sensor (mailbox empt y) within the specified time.

The media reached the sensor (output pass through) but did not clear it in the specified time.

The media reached the sensor (mailbox empty) but did not clear it in the speci fi ed time.

The medi

a is late reaching the sensor (output pas s thr ough) within the specified ti m e.

A software fai lure has o ccur red with the output option.

See “Sensor (mailbox em pty)

late jam service check” on page 2-148

See “Sensor (output pass

through) lingering jam service check” on page 2-147.

See “Sensor (mailbox em pty)

lingering jam service check” on page 2-148.

See “Sensor (output pass

through) late jam ser vice check” on page 2-146.

1. Turn the machine off/on.

2. Replace the output option if problem remains.

Diagnostic information 2-63

Lexmark MB790MFP, MB780, MPS5500 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of contents

Notices and safety information

Laser no tice

Laser

Avis relatif à l’utilisation de laser

Avvertenze sui prodotti laser

Avisos sobre el láser

Declaração sobre Laser

Laserinformatie

Lasermeddelelse

Laserilmoitus

Huomautu s las er laittees ta

Laser-notis

Laser-melding

Avís sobre el Làser

Lithium warn ing

Consignes de sécurité

Norme di sicurezza

Sicherheitshinweise

Pautas de Seguridad

Inform a çõ es de Seg ur a nça

Informació de Seguretat

Preface

Navigation buttons

1. General in formation

Maintenance approach

Printer overview

Printer configurations

Options

Supported paper sizes, types, and weig hts

Printer configurations

Tools required for service

Acronyms

2. Diagnostic information

Start

Confirm the installation status

Power-on Reset sequence

Entering Diagnostics Menu

User atten dan ce me ss ag es

Error co de ta ble