Lexmark C910 5055-01x Service Manual

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Page 1

C910 Color Printer

• Table of Contents

• Start Diagnostics

• Safety and Notices

• Trademarks

5055-01X

•Index

Lexmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other countries.

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5055-01X

Edition: July 2002 The following paragraph does not apply to any country where such provisions are

inconsistent with local law: LEXMARK INTERNATIONAL, INC. PROVIDES THIS

PUBLICATION “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer of express or implied warranties in certain transactions; therefore, this statement may not apply to you.

This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in later editions. Improvements or changes in the products or the programs described may be made at any time.

Comments may be addressed to Lexmark International, Inc., Department D22A/032-2, 740 West New Circle Road, Lexington, Kentucky 40550, U.S.A or electronically mailed (e-mail) to ServiceInfoAndTraining@Lexmark.com. Lexmark may use or distribute any of the information you supply in any way it believes appropriate without incurring any obligation to you. You can purchase additional copies of publications related to this product by calling 1-800-553-9727. In other countries, contact your point of purchase.

Lexmark and Lexmark with diamond design are trademarks of Lexmark International, Inc., registered in the United States and/or other countries.

ImageQuick, Optra Forms, and OptraImage are trademarks of Lexmark International, Inc. Other trademarks are the property of their respective owners.

UNITED STATES GOVERNMENT RESTRICTED RIGHTS

This software and documentation are provided with RESTRICTED RIGHTS. Use, duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data and Computer Software clause at DFARS 252.227-7013 and in applicable FAR provisions: Lexmark International, Inc., Lexington, KY 40550.

P/N 12G9112

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5055-01X

Contents

Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Model Differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1

Toner Darkness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Color Correction Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Printer Packaging and Shipping Information . . . . . . . . . . . . . . . . 1-2

Print Speed and Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Time to First Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Processor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Duty Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Printer Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Available Memory Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Flash Memory Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Memory and Expansion Slots . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Paper Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Input and Output Configurations . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

Media Size Supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

Input Media Types and Weights. . . . . . . . . . . . . . . . . . . . . . . . . 1-15

Output Media Types and Weights . . . . . . . . . . . . . . . . . . . . . . . 1-16

Input Capacity by Media and Source . . . . . . . . . . . . . . . . . . . . . 1-18

Output Capacity by Media and Source . . . . . . . . . . . . . . . . . . . 1-19

Paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

Envelopes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

Transparencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

Labels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

Lexmark Glossy Paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

Print Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

Options and Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

Optional Internal Local Connections . . . . . . . . . . . . . . . . . . . . . 1-22

Network Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

Data Streams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

Operating Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

Resident Fonts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

Power and Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . 1-25

iii

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Operating Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-26

Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-27

Physical Specifications and Weight. . . . . . . . . . . . . . . . . . . . . . .1-28

Maintenance Approach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-29

Standard Inspection and Cleaning Procedure. . . . . . . . . . . . . . .1-29

Return Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-30

Service Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-30

Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-31

Serial Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-32

Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-33

Processes and Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .1-34

Electrophotography Process . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-34

Development Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-35

Transfer Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-35

Cleaning Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-36

Paper Feeding / Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-36

Drive System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-37

Paper Feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-38

Cassette Paper Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-38

Multipurpose Feeding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-39

Registration Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-40

Separation Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-41

Fuser Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-42

Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-43

Belt Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-44

Belt Up/Down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-45

Expansion Paper Feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-45

Duplex Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-46

Paper Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-47

Clearing Paper Jams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-48

High Capacity Feeder (HCF). . . . . . . . . . . . . . . . . . . . . . . . . . . .1-54

Maintenance Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-62

High Capacity Paper Feed Sensor / Switch Test . . . . . . . . . . . .1-64

Finisher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-65

Finisher Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-79

Attaching the Docking Plate and Guide Rail . . . . . . . . . . . . . . . .1-79

Combining the Finisher and Stand . . . . . . . . . . . . . . . . . . . . . . .1-81

Attaching the Bins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-85

Aligning the Finisher and Printer . . . . . . . . . . . . . . . . . . . . . . . . .1-86

Adjusting the Wheels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-93

Attaching the Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-95

Hole Punch Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-99

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Diagnostic Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Adjustments and Procedures Following Parts Replacement . . . . 2-1

Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Initial Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

Printer Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Service Error Message Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

Attendance Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37

Maintenance Analysis Procedures (MAPS) . . . . . . . . . . . . . . . . 2-56

Symptom Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-65

Service Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-70

Drive 1 DC Motor Service Check . . . . . . . . . . . . . . . . . . . . . . . . 2-70

Drive 2 Stepper Motor Service Check . . . . . . . . . . . . . . . . . . . . 2-70

Duplex Unit Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-71

Expansion Paper Feed Service Check . . . . . . . . . . . . . . . . . . . 2-71

Face Down Stacker Full Service Check . . . . . . . . . . . . . . . . . . . 2-72

High Capacity Feeder (HCF) Service Check . . . . . . . . . . . . . . . 2-72

Finisher Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-73

Operator Panel Service Check. . . . . . . . . . . . . . . . . . . . . . . . . . 2-74

Paper Carrying Service Check. . . . . . . . . . . . . . . . . . . . . . . . . . 2-74

Paper Exit, FU/FD Service Check . . . . . . . . . . . . . . . . . . . . . . . 2-83

Paper Tray Missing Service Check . . . . . . . . . . . . . . . . . . . . . . 2-83

Photodeveloper Missing Service Check. . . . . . . . . . . . . . . . . . . 2-84

Power Supply Service Check . . . . . . . . . . . . . . . . . . . . . . . . . . 2-85

Marks on Paper Service Check . . . . . . . . . . . . . . . . . . . . . . . . . 2-86

Transfer Belt Up/Down Service Check. . . . . . . . . . . . . . . . . . . . 2-88

210 Staple Jam Service Check . . . . . . . . . . . . . . . . . . . . . . . . . 2-88

Image Quality Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-89

Print Quality Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-89

Options Service Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-97

Diagnostic Aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Power-On Self Test Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Using the Operator Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

Operator Panel Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Printing the Menu Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Operator Menu Disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Menu Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

Diagnostic Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

Adjustment Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

Print Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10

Hardware Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-12

Finisher Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Device Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21

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Diagnostics - Printer Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24

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

Viewing and Resetting the Drum Counters . . . . . . . . . . . . . . . . .3-26

Diagnostics - Error Log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-29

Repair Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Service Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Handling Printed Circuit Boards . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

High Capacity Paper Feed Timing Belt Adjustment . . . . . . . . . . .4-3

Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Cover, Top Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Operator Panel Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Cover, Front Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Cover, Front Left Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

Cover, Rear Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

Cover, Solenoid Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

Cover, Left Side Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

Cover, Right Side Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Cover, RIP Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

Tray, Paper Exit Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

RIP Box Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11

Electronic Box Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11

LED Printhead Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12

Eraser Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-14

Printhead Controller Board Removal. . . . . . . . . . . . . . . . . . . . . .4-15

Upper Fan Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-16

Multipurpose Feeder Tray Removal . . . . . . . . . . . . . . . . . . . . . .4-17

Paper Feed Roller Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-18

Paper Carrying Roller Removal. . . . . . . . . . . . . . . . . . . . . . . . . .4-18

Paper Present Sensor Removal . . . . . . . . . . . . . . . . . . . . . . . . .4-19

Paper Feed Frame Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-20

Cassette Guide Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-21

Temperature/Humidity Sensor Removal . . . . . . . . . . . . . . . . . . .4-22

Paper Feed Solenoid Removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-22

Paper Remaining Sensor Removal . . . . . . . . . . . . . . . . . . . . . . .4-22

Gear Cover Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-23

Multipurpose Feeder Roll Removal . . . . . . . . . . . . . . . . . . . . . . .4-23

Multipurpose Feeder Clutch Removal . . . . . . . . . . . . . . . . . . . . .4-23

OHP Detection Sensor (Upper) Removal . . . . . . . . . . . . . . . . . .4-23

Fanning Pad Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-25

Registration Sensor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . .4-26

Multipurpose Feeder Paper Present Sensor Removal . . . . . . . .4-27

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Paper Carrying Frame Removal . . . . . . . . . . . . . . . . . . . . . . . . 4-28

Paper Carrying Roller (Upper) Removal . . . . . . . . . . . . . . . . . . 4-28

Paper Carrying Clutch Removal. . . . . . . . . . . . . . . . . . . . . . . . . 4-28

OHP Detection Sensor (Lower) Removal . . . . . . . . . . . . . . . . . 4-28

Registration Frame, Registration Clutch Removal . . . . . . . . . . . 4-29

Transfer Belt Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-30

Belt Up/Down Detection Sensor Removal . . . . . . . . . . . . . . . . . 4-34

Sensor Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-35

Density Sensor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

Separation Fingers Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

Sensor Cleaner Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-36

Printer Controller Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-37

High Voltage Power Supply Board (HVU) Removal. . . . . . . . . . 4-38

R Sub Frame Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

Toner Remaining Sensor Removal . . . . . . . . . . . . . . . . . . . . . . 4-39

Drum Gear Sensor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-39

Sub Frame F1, Sub Frame F2 Removal . . . . . . . . . . . . . . . . . . 4-40

Drive Gear Unit Sensor Assembly Removal . . . . . . . . . . . . . . . 4-41

Belt Up/Down Clutch Removal. . . . . . . . . . . . . . . . . . . . . . . . . . 4-42

Power Supply 1 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-43

Power Supply 2 Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-44

Drive Motor Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . . . 4-45

Motor Drive Board Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-45

Power Switch Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-46

Connector, Duplex Unit Removal. . . . . . . . . . . . . . . . . . . . . . . . 4-47

Paper Size Sensor Board Assembly Removal. . . . . . . . . . . . . . 4-48

Main Unit Fan Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-49

Main Drive Unit Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-50

Face Up Paper Exit Assembly Removal . . . . . . . . . . . . . . . . . . 4-54

Face Up/Down (Flapper Detection) Sensor Removal . . . . . . . . 4-54

Face Up/Down Solenoid Removal . . . . . . . . . . . . . . . . . . . . . . . 4-54

Paper Delivery Sensor Removal . . . . . . . . . . . . . . . . . . . . . . . . 4-54

Paper Exit Tray Switch Removal . . . . . . . . . . . . . . . . . . . . . . . . 4-54

Face Down Guide Assembly Removal. . . . . . . . . . . . . . . . . . . . 4-55

Paper Exit Motor & Full Sensor Removal. . . . . . . . . . . . . . . . . . 4-55

Turn Guide Cover Sensor Removal . . . . . . . . . . . . . . . . . . . . . . 4-57

Right Slide Rail Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-58

Front Cover Open Switch Actuator Removal . . . . . . . . . . . . . . . 4-58

Lock Handle Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . 4-59

Top Unit Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-60

Stay Arm Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-61

Fuser Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-62

Options Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-63

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Expansion Paper Feeder Removal . . . . . . . . . . . . . . . . . . . . . . .4-63

Duplex Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-71

Duplex Unit Separation Removal . . . . . . . . . . . . . . . . . . . . . . . .4-71

Duplex Unit Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-72

Duplex Timing Belt Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-72

Duplex Pressure Roller and Solenoid Removal . . . . . . . . . . . . .4-73

Duplex Feed Roller and Solenoid Removal . . . . . . . . . . . . . . . .4-74

Duplex Side Fence Motor Assembly / Side Fence Removal. . . .4-75

Duplex Paper Carrying Motor Removal. . . . . . . . . . . . . . . . . . . .4-76

High Capacity Feeder (HCF) Removals . . . . . . . . . . . . . . . . . . . . .4-77

HCF Covers Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-77

HCF Call Roller, Paper Feed Roller, Reverse Roller Removal . .4-78

HCF Pickup Solenoid Removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-79

HCF Paper End Sensor Removal . . . . . . . . . . . . . . . . . . . . . . . .4-80

HCF Paper Size Sensors (1, 2) Removal . . . . . . . . . . . . . . . . . .4-80

HCF Tray Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-82

HCF Paper Level Sensor Removal . . . . . . . . . . . . . . . . . . . . . . .4-83

HCF Power Supply Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . .4-84

Finisher Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-85

External Covers Removals . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-85

Hole Punch Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-87

Finisher Control Board Removal . . . . . . . . . . . . . . . . . . . . . . . . .4-88

Registration Roller Clutch Removal . . . . . . . . . . . . . . . . . . . . . .4-89

Registration Roller Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-90

Feed Motor Assembly Removal . . . . . . . . . . . . . . . . . . . . . . . . .4-90

Timing Belts 1 and 2 Removal . . . . . . . . . . . . . . . . . . . . . . . . . .4-91

Patting Roller Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-92

Inverter Paper Exit Roller Removal . . . . . . . . . . . . . . . . . . . . . . .4-94

Straight Paper Exit Roller Removal. . . . . . . . . . . . . . . . . . . . . . .4-96

Path Select Gate Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-98

Tractor Drive Motor Assembly Removal . . . . . . . . . . . . . . . . . . .4-99

Straight Paper Exit Discharge Brush Removal . . . . . . . . . . . . .4-100

Inverter Paper Exit Discharge Brush Removal . . . . . . . . . . . . .4-100

Tractor Belt Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-101

Staple Unit Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-103

Stack Area Discharge Brush Removal . . . . . . . . . . . . . . . . . . .4-103

Power Supply Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-103

Jogging Unit Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-105

Elevator Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-107

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

Covers Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Major Parts Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

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Sensor and Switch Locations. . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4

Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Printer Controller Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Printhead Controller Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

RIP Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10

Power Source Unit 1 Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

Power Source Unit 2 Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11

High Voltage Power Supply Board. . . . . . . . . . . . . . . . . . . . . . . 5-12

Sensor Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13

Expansion Paper Feeder Controller Board . . . . . . . . . . . . . . . . 5-13

Duplex Unit Controller Board . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Motor Drive Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

Size Sensor Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14

High Capacity Feeder (HCF) . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15

High Capacity Paper Feed Configuration. . . . . . . . . . . . . . . . . . 5-16

Electrical Parts Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Driving Parts Layout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18

Finisher Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19

Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Maintenance Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Periodic Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Lubricants and Cleaners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2

Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

How to Use This Parts Catalog . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Assembly 1: Covers 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2

Assembly 2: Covers 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Assembly 3: Covers 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6

Assembly 4: Covers 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-8

Assembly 5: Covers 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-10

Assembly 6: Upper Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-12

Assembly 7: Base 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-16

Assembly 8: Base 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20

Assembly 9: Base 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22

Assembly 10: Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-24

Assembly 11: Rip Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-28

Assembly 11: RIP Board (Continued) . . . . . . . . . . . . . . . . . . . . 7-30

Assembly 12: Fuser Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-32

Assembly 13: Cassette . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-34

Assembly 14: Expansion Feeder 1 . . . . . . . . . . . . . . . . . . . . . . 7-36

Assembly 15: Expansion Feeder 2 . . . . . . . . . . . . . . . . . . . . . . 7-38

Assembly 16: Duplex Unit 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-40

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Assembly 17: Duplex Unit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-42

Assembly 18: High Capacity Feeder 1 . . . . . . . . . . . . . . . . . . . .7-44

Assembly 19: High Capacity Feeder 2 . . . . . . . . . . . . . . . . . . . .7-46

Assembly 20: High Capacity Feeder 3 . . . . . . . . . . . . . . . . . . . .7-48

Assembly 21: High Capacity Feeder 4 . . . . . . . . . . . . . . . . . . . .7-50

Assembly 22: High Capacity Feeder 5 . . . . . . . . . . . . . . . . . . . .7-52

Assembly 23: High Capacity Feeder 6 . . . . . . . . . . . . . . . . . . . .7-54

Assembly 24: Finisher Covers. . . . . . . . . . . . . . . . . . . . . . . . . . .7-56

Assembly 25: Finisher Frame . . . . . . . . . . . . . . . . . . . . . . . . . . .7-58

Assembly 25: Finisher Frame (Continued) . . . . . . . . . . . . . . . . .7-60

Assembly 26: Finisher Feed 1. . . . . . . . . . . . . . . . . . . . . . . . . . .7-62

Assembly 26: Finisher Feed 1 (Continued) . . . . . . . . . . . . . . . . .7-64

Assembly 27: Finisher Feed 2 . . . . . . . . . . . . . . . . . . . . . . . . . .7-66

Assembly 27: Finisher Feed 2 (Continued) . . . . . . . . . . . . . . . . .7-68

Assembly 28: Finisher Elevator. . . . . . . . . . . . . . . . . . . . . . . . . .7-70

Assembly 29: Finisher Electronics . . . . . . . . . . . . . . . . . . . . . . .7-72

Assembly 30: Finisher Docking 1 . . . . . . . . . . . . . . . . . . . . . . . .7-74

Assembly 31: Finisher Docking 2 . . . . . . . . . . . . . . . . . . . . . . . .7-76

Finisher Parts Packet P/N 56P9480 . . . . . . . . . . . . . . . . . . . . . .7-78

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1

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Safety Information

Safety Notice

• This product is designed, tested and approved to meet strict

global safety standards with the use of specific Lexmark components. The safety features of some parts may not always be obvious. Lexmark is not responsible for the use of other replacement parts.

• The maintenance information for this product has been

prepared for use by a professional service person and is not intended to be used by others.

• There may be an increased risk of electric shock and

personal injury during disassembly and servicing of this product. Professional service personnel should understand this and take necessary precautions.

Consignes de Sécurité

• Ce produit a été conçu, testé et approuvé pour respecter les

normes strictes de sécurité globale lors de l'utilisation de composants Lexmark spécifiques. Les caractéristiques de sécurité de certains éléments ne sont pas toujours évidentes. Lexmark ne peut être tenu responsable de l'utilisation d'autres pièces de rechange.

• Les consignes d'entretien et de réparation de ce produit

s'adressent uniquement à un personnel de maintenance qualifié.

• Le démontage et l'entretien de ce produit pouvant présenter

certains risques électriques, le personnel d'entretien qualifié devra prendre toutes les précautions nécessaires.

Safety Information xi

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Norme di sicurezza

• Il prodotto è stato progettato, testato e approvato in

conformità a severi standard di sicurezza e per l’utilizzo con componenti Lexmark specifici. Le caratteristiche di sicurezza di alcune parti non sempre sono di immediata comprensione. Lexmark non è responsabile per l’utilizzo di parti di ricambio di altri produttori.

• Le informazioni riguardanti la manutenzione di questo

prodotto sono indirizzate soltanto al personale di assistenza autorizzato.

• Durante lo smontaggio e la manutenzione di questo prodotto,

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

Sicherheitshinweise

• Dieses Produkt und die zugehörigen Komponenten wurden

entworfen und getestet, um beim Einsatz die weltweit gültigen Sicherheitsanforderungen zu erfüllen. Die sicherheitsrelevanten Funktionen der Bauteile und Optionen sind nicht immer offensichtlich. Sofern Teile eingesetzt werden, die nicht von Lexmark sind, wird von Lexmark keinerlei Verantwortung oder Haftung für dieses Produkt übernommen.

• Die Wartungsinformationen für dieses Produkt sind

ausschließlich für die Verwendung durch einen Wartungsfachmann bestimmt.

• Während des Auseinandernehmens und der Wartung des

Geräts besteht ein zusätzliches Risiko eines elektrischen Schlags und körperlicher Verletzung. Das zuständige Fachpersonal sollte entsprechende Vorsichtsmaßnahmen treffen.

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Pautas de Seguridad

• Este producto se ha diseñado, verificado y aprobado para

cumplir los más estrictos estándares de seguridad global usando los componentes específicos de Lexmark. Puede que las características de seguridad de algunas piezas no sean siempre evidentes. Lexmark no se hace responsable del uso de otras piezas de recambio.

• La información sobre el mantenimiento de este producto

está dirigida exclusivamente al personal cualificado de mantenimiento.

• Existe mayor riesgo de descarga eléctrica y de daños

personales durante el desmontaje y la reparación de la máquina. El personal cualificado debe ser consciente de este peligro y tomar las precauciones necesarias.

Informações de Segurança

• Este produto foi concebido, testado e aprovado para

satisfazer os padrões globais de segurança na utilização de componentes específicos da Lexmark. As funções de segurança de alguns dos componentes podem não ser sempre óbvias. A Lexmark não é responsável pela utilização de outros componentes de substituição.

• As informações de segurança relativas a este produto

destinam-se a profissionais destes serviços e não devem ser utilizadas 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.

Safety Information xiii

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5055-01X

Informació de Seguretat

• Aquest producte està dissenyat, comprovat i aprovat per tal

d'acomplir les estrictes normes de seguretat globals amb la utililització de components específics de Lexmark. Les característiques de seguretat d'algunes peces pot ser que no sempre siguin òbvies. Lexmark no es responsabilitza de l'us d'altres peces de recanvi.

• La informació pel manteniment 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 convenients.

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Safety Information xv

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xvi Service Manual

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5055-01X

1. General Information

The Lexmark 910 is a high-speed, wide-format color LED

electrophotographic printer with superior print quality for high-

volume printing.

Model Differences

5055-010 5055-01N

28/29 ppm Engine USB/Parallel 64MB

28/29 ppm Engine USB/Ethernet 64MB

1 x 550-sheet option

28/29 ppm Engine USB/Ethernet 128MB

1 x 550-sheet option Duplex

28/29 ppm Engine USB/Ethernet 128MB

1 x 550-sheet option Duplex Hard Disk Option Staple Punch Finisher w/Stand Printer Cabinet

Overview

The Lexmark C910 is a high-speed, wide-format color LED

Electrophotographic color printer with superior print quality for high-

volume printing.

Resolution

600 x 600 dpi

•

• 2400 image quality

General Information 1-1

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5055-01X

Toner Darkness

Toner darkness settings offer four (4) user-selectable settings to balance print darkness and toner savings. The higher the setting, the darker the print. The toner darkness default setting is 4.

The toner darkness setting is available through the operator panel under the "Print Quality" menu.

Color Correction Settings

There are four (4) different color correction settings to provide flexibility in choosing the type of color correction to be applied when printing a file.

• Auto (default) - provides ease of use with no color science

knowledge required

• Vivid - adjusts CMYK components, with the result being colors

that are more saturated

• ff - no color correction is implemented from RGB or CMYK

applications

• CMYK - provides the application's color correction instead of the

printer's algorithms

Black and White Lock - (in configuration menu) allows printer and network administrators to lock the Lexmark C910 printer in a mode that will only print black. This feature cannot be overridden with any other menu or driver selection.

Printer Packaging and Shipping Information

Description Width Depth Height Weight

Printers

Lexmark C910 32.6 in.

Lexmark C910n 32.6 in.

Lexmark C910dn

1-2 Service Manual

(828 mm)

32.6 in. (828 mm)

29.3 in. (745 mm)

34.8 in. (883 mm)

45.5 in. (1,155 mm)

34.8 in. (883 mm)

198 lb. (90 kg)

246.4 lb. (112 kg)

259.4 lb. (117.9 kg)

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5055-01X

Options

High Capacity Feeder

Duplex Unit 27.6 in.

Optional Drawer 28.5 in.

24.8 in. (630 mm)

(700 mm)

(724 mm)

28.6 in. (726 mm)

20.5 in. (520 mm)

31.5 in. (801 mm)

Supplies

Print Cartridge

(Black)

Print Cartridge (Cyan, Magenta or

21.7 in. (551 mm)

10.1 in. (256 mm)

Ye l l o w )

Black Photodeveloper

Color Photodeveloper

Includes start-up kit (supplies)

“dn” model will ship unpackaged duplex inside printer

Oil coating roller will ship with black toner cartridge

18.4 in. (467 mm)

4.1 in. (105 mm)

12 in. (306 mm)

32.3 in. (820 mm)

10.6 in. (270 mm)

10.7 in. (272 mm)

6.4 in. (162 mm)

4.3 in. (110 mm)

4.5 in. (114 mm)

75.7 lb. (34.4 kg)

18.7 lb. (8.5 kg)

48.4 lb. (22 kg)

6.6 lb. (3 kg)

5.7 lb. (2.6 kg)

2.2 lb. (1 kg)

6.6 lb. (3 KG)

General Information 1-3

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5055-01X

Print Speed and Performance

Print Speed

Standard and Heavy Media Tra y

Simplex printing on letter-size media (pages per minute)

Letter - 8.5 in. x 11 in. 28 28 28

Ledger 16 N/A 16

Legal - 8.5 in. x 14 in. 19 N/A 19

A3 16 N/A 16

A4 - 3.4 in. x 11.7 in. 29 29 29

A5/Executive N/A N/A 38

B4 18 N/A 18

B5 N/A N/A 32

Transparencies 22 N/A 22

Card Stock N/A N/A 11

Envelopes N/A N/A 11

Paper Labels 22 N/A 22

Duplex printing on letter-size media (sides per minute)

High Capacity Feeder

Multipurpose Feeder

1,2,3,4

Letter - 8.5 in. x 11 in. 19 19 19

Ledger 11 N/A 11

Legal - 8.5 in. x 14 in. 12 N/A 12

A3 11 N/A 11

A4 - 3.4 in. x 11.7 in. 19 19 19

A5/Executive N/A N/A 20

B4 12 N/A 12

B5 N/A N/A 19

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5055-01X

LEF = Long Edge Feed SEF = Short Edge Feed N/S = Not Supported

Folio and statement paper support from multipurpose feeder

only

Speeds

When printing from the multipurpose feeder: Simplex - the first three pages print a “legal” speed with the balance printing at the speed consistent with the actual media size. Duplex - all pages print at “legal” speed.

Average duplex print performance measured under the following conditions: Simplex text document (Mr. Brown) from the printer’s integrated tray to the printer’s standard output bin, with a job stream sufficiently long for the printer system to enter the maximum duplex print performance page sequence (2,4,6,1,3,5...) The first two sides (2 and 4) are not included in the performance computation since they “seed” the printer system’s paper path to achieve the maximum duplex print performance.

Performance

The Lexmark C910 printers support the speeds listed above. Performance depends on

• Interface to the host (USB, serial, parallel, network)

• Host system and application

• Page complexity and content

• Certain printer options installed or selected

• Printer memory

• Media size and type

Time to First Print

Time to first print:

•

– Black and color: 15 seconds

General Information 1-5

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5055-01X

Processor

• 400 MHz

Duty Cycle

• Up to 100,000-sheet maximum, based on a single month's

usage

• Up to 10,000 sheets per month

Printer Memory

Memory Configuration

DRAM Memory Lexmark C910(n) Lexmark C910dn

Standard 64MB 128MB

Maximum 512MB 512MB

Available Memory Options

Optional 64MB, 128MB and 256MB SDRAM DIMMs are available from Lexmark.

Flash Memory Options

Optional 4MB, 8MM and 16MB DIMMs are available from Lexmark.

Memory and Expansion Slots

Memory slots for extra flash or DRAM

•

– Lexmark C910(n): 2 – Lexmark C910(dn): 1

• Expansion slots for optional interface cards: 1

• Optional firmware expansion slots (application solution firmware

cards): 1

• On-board hard disk interface (for optional hard disk): 1

SDRAM and flash memory options are interchangeable within any of the memory slots available on the Lexmark C910 system board. However, only one flash memory Maintenance Approach option will

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be recognized. If multiple flash memory options are installed, the system will recognize the largest one.

Paper Handling

Capacity may vary and is subject to media specifications and printer operating environment. Capacities listed are based on plain paper at

75g/m

Input and Output Configurations

Sources and Capacities

Input Sources

Number of standard sources

Optional input drawers 3 2 2

High Capacity Feeder 1 1 1

Maximum number of input sources

Input Capacities (sheets)

Standard

Primary tray 550 550 550

Second tray N/A 550 550

Multipurpose tray 100 100 100

Total standard capacity 650 1,200 1,200

Optional

500-sheet drawer 550 550 550

Heavy-media tray

High capacity feeder

Lexmark C910

233

666

Ye s Ye s Ye s

3,000 3,000 3,000

Lexmark C910n

Lexmark C910dn

General Information 1-7

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Sources and Capacities

Maximum additional

Lexmark C910

322

Lexmark C910n

Lexmark C910dn

drawers

Maximum input capacity

2,300 2,300 2,300 (without high capacity feeder

Maximum input capacity +

5,300 5,300 5,300 high capacity feeder

Output Destination

Number (standard) 1 1 1

Output Capacities sheets

Standard Output Bin 550 550 550

Face up Bin 100 100 100

Optional

Finisher

3,4

1,000 1,000 1,000

Maximum output capacity 1,650 1,650 1,650

Other

Duplex unit Yes Yes Standard

A maximum of one high capacity input drawer is supported on any model

The heavy-media tray is supported only as Tray 1 (top).

A maximum of one finisher is supported on any model.

The finisher requires installation of the 2 x 550-sheet drawer with the base

or printer cabinet.

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Media Size Supported

Input

A4-8.27” x 11.7” (210 mm x 297 mm)

A5-5.83” x 8.27” (148 mm x 210 mm

JIS-B5-7.17” x

10.23” (182 mm x 257mm)

JIS-B4-14.34” x

10.1” (364 mm x 252 mm)

Letter-8.5” x 11” (216 mm x 279 mm)

Legal-8.5” x 14” (216 mm x 256 mm)

Executive-7.25” x 10.5” (184 mm x 267 mm)

500sheet Input

XX X XX

XX XX

XX X XX

XX XX

Multipurpose Feeder

XXX

High Capacity Feeder

Duplex

Hevay Media Tra y

Tabloid-11” x 17” (279.4 mm x

431.8 mm)

A3-11.69” x

16.54” (297 mm x 420 mm)

XX XX

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Universal

1,2

2.75 x 5 in. to 8.5 x 14in. (69.85 x 127 mm to 229 x

355.6 mm)

5.83 x 7.17 in to

8.5 x 14 in. (148 x 182 mm to

215.9 x 355.6 mm)

7 3/4 Envelope-

3.875” x 7.5” (98 mm x 191 mm)

9 Envelope -

3.875” x 8.9” (98 mm x 225.4 mm)

10 Envelope -

4.125” x 9.5” (105 mm x 241 mm)

500sheet Input

Multipurpose Feeder

High Capacity Feeder

Duplex

Hevay Media Tra y

DL Envelope -

4.33” x 8.66” (110 mm x 220 mm)

C4 Envelope - 9” x 12.75” (229 mm x 324 mm)

C5 Envelope -

6.38” x 9.01” (162 mm x 229 mm)

B5 Envelope -

6.93” x 9.84” (176 mm x 250 mm)

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Other Envelope

500sheet Input

Multipurpose Feeder

High Capacity Feeder

Duplex

Hevay Media Tra y

11.69 x 11.69 in. (297 mm to 297 mm)

Media Type

Paper X X X X X

Card Stock X

Transparencies X

Envelopes X

Glossy Paper X X

Paper Labels X

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Output

A4-8.27” x 11.7” (210 mm x 297 mm)

A5-5.83” x 8.27” (148 mm x 210 mm

JIS-B5-7.17” x

10.23” (182 mm x 257mm)

JIS-B4-14.34” x

10.1” (364 mm x 252 mm)

Letter-8.5” x 11” (216 mm x 279 mm)

Legal-8.5” x 14” (216 mm x 256 mm)

Executive-7.25” x 10.5” (184 mm x 267 mm)

Standard Output

XXXX

XXX

XXXX

XXX

Bin 1

Finisher Bin 1

Finisher Bin 2

Tabloid-11” x 17” (279.4 mm x

431.8 mm)

A3-11.69” x

16.54” (297 mm x 420 mm)

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XXX

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Universal

2.75 x 5 in. to 8.5 x 14in. (69.85 x 127 mm to 229 x

355.6 mm)

5.83 x 7.17 in to

8.5 x 14 in. (148 x 182 mm to

215.9 x 355.6 mm)

7 3/4 Envelope-

3.875” x 7.5” (98 mm x 191 mm)

9 Envelope -

3.875” x 8.9” (98 mm x 225.4 mm)

10 Envelope -

4.125” x 9.5” (105 mm x 241 mm)

1,2

Standard Output

Bin 1

Finisher Bin 1

Finisher Bin 2

DL Envelope -

4.33” x 8.66” (110 mm x 220 mm)

C4 Envelope - 9” x 12.75” (229 mm x 324 mm)

C5 Envelope -

6.38” x 9.01” (162 mm x 229 mm)

B5 Envelope -

6.93” x 9.84” (176 mm x 250 mm)

General Information 1-13

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5055-01X

Other Envelope

Standard Output

Bin 1

Finisher Bin 1

Finisher Bin 2

11.69 x 11.69 in. (297 mm to 297 mm)

Media Type

Paper X X X X

Card Stock X X X

Transparencies X X

Envelopes X X

Glossy Paper X X X X

Paper Labels X

When Universal is selected, the page is formatted for 8.5 x 14 in. (215.9

x 355.6 mm) unless the size is specified in the software application.

Narrow media should be loaded with the length in the feed direction

(portrait).

A5 paper 5.83 x 8.27 in. (148 x 210 mm) is the smallest size the C910

can duplex

When Other Envelope is selected, the page is formatted for 8.5 x 14 in. (215.9 x 355.6 mm) unless the size is specified in the software application.

Maximum stack of 50 sheets; if more input is required, use Heavy Media Tr ay.

Manual feed (one sheet at a time) only; if more input is required, use Heavy Media Tray

Maximum stack of 30 sheets; if more input is required, use Heavy Media Tr ay.

Refer to Cardstock & Label Guide for media guidelines.

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Input Media Types and Weights

Media Weight

Standard Trays

Paper Xerographic or business

1, 2, 3

16 to 28 lb. bond (60 to 105 g/m2)

paper

Specialty papers Glossy laser 80 lb. book (32 lb. bond) (120 g/m

Heavy Media Tray1

Paper

28 to 47 lb. bond (105 to 176 g/m

Xerographic or business paper

Specialty papers Glossy laser4 80 lb. book (32 lb. bond) (120 g/m

Transparencies Laser printer

47 lb. bond (175 g/m

)

type5

Labels - upper limit Paper 48 lb. bond (180 g/m

Multipurpose Feeder

Paper Xerographic or business

16 to 28 lb. bond (60 to 105 g/m2)

)

paper

Specialty papers Glossy laser 80 lb. book (32 lb. bond)(120 g/m

Card stock - upper limit Index

90 lb. index (44 lb. bond) (165 g/m2)

Bristol

Transparencies Laser printer type 47 lb. bond (175 g/m

Labels - upper limit Paper 48 lb. bond (180 g/m

)

Envelopes Sulfite, Wood-free - up to 100% cotton

20 to 28 lb. bond2, 3 (75 to 105

)

g/m

High Capacity Feeder1

Paper Xerographic or business

16 to 28 lb. bond (60 to 105 g/m2)

paper

The duplex option supports the same weights and types as the printer, except for transparencies, envelopes, labels and paper less than 75 g/m (20 lb. bond) or greater than 105 g/m

100% cotton content maximum weight is 90 g/m2 (24 lb. bond)

(29 lb. bond)

General Information 1-15

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Media Weight

105 g/m2 (28 lb. bond) envelopes are limited to 25% cotton content

Part numbers 12A5950 (letter) and 12A5951 (A4)

Part numbers 12A5940 (letter) and 12A5941 (A4)

Refer to Cardstock & Label Guide for media guidelines

Output Media Types and Weights

Media Weight

Standard Output

Paper Xerographic or business paper

Specialty papers Glossy laser

Card stock - upper limit Index Bristol

Transparencies Laser printer type

Labels - upper limit Paper

3, 4

Bin 1

Paper Xerographic or business paper

Specialty papers Glossy laser

Card stock - upper limit Index Bristol

Transparencies Laser printer type

Labels - upper limit Paper

16 to 28 lb. bond (60 to 105 g/m2)

80 lb. book (32 lb. bond) (120 g/m

90 lb. index (44 lb. bond) (165 g/m

47 lb. bond (175 g/m

48 lb. bond (180 g/m

)

16 to 28 lb. bond (60 to 105 g/m2)

80 lb. book (32 lb. bond) (120 g/m2)

90 lb. index (44 lb. bond) (165 g/m

47 lb. bond (175 g/m2)

48 lb. bond (180 g/m

)

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Media Weight

Envelopes

20 to 28 lb. bond

6,7,8

Sulfite, Wood-free - up to 100% cotton

Finisher Bin 1

Paper

3,4

(75 to 105 g/m2)

16 to 28 lb. bond (60 to 105 g/m2)

Xerographic or business paper

Specialty papers Glossy laser

Card stock - upper limit

80 lb. book (32 lb. bond) (120 g/m2)

90 lb. index (44 lb. bond) (165 g/m

Index Bristol

Transparencies Laser printer type

Labels - upper limit

47 lb. bond (175 g/m2)

48 lb. bond (180 g/m

)

Paper

Finisher Bin 2

Paper

3, 4, 5

16 to 28 lb. bond (60 to 105 g/m2)

Xerographic or business paper

Part numbers 12A5950 (letter) and 12A5951 (A4)

Part numbers 12A5940 (letter) and 12A5941 (A4)

The duplex option supports the same weights and types as the printer, except for transparencies, envelopes, labels and paper less than 75 g/m (20 lb. bond) or greater than 105 g/m2 (29 lb. bond)

Bin 1 represents engine side output and Finisher Bin 1 (face-up)

Finisher supports hole punch, job offset and stapling.

Finisher only supports long-edge fed envelopes wider than 5.8 in. (148 mm) - feed direction dimension

100% cotton content maximum weight is 90 g/m2 (24 lb. bond)

105 g/m2 (28 lb. bond) envelopes are limited to 25% cotton content

)

General Information 1-17

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5055-01X

Input Capacity by Media and Source

Media Stack Height Capacity

500-Sheet Trays

Plain Paper (letter, A4, legal, tabloid, A3)

Glossy Paper 0.6 in. (15 mm) 130 sheets

2.2 in. (56 mm) 550 sheets 20 lb. (75 g/m

1 in. (25 mm)

240 sheets 24 lb. (90 g/m

32 lb. (120 g/m

)

Multipurpose Feeder

Plain Paper

100 sheets 20 lb. (75 g/m

)

Transparencies 50 transparencies

0.4 in. (11 mm)

Envelopes 10 envelopes

Card Stock 55 sheets

90 lb. index (163 g/m

Paper Labels 55 sheets

up to 48 lb. (180 g/m

Glossy Paper (Manual) 1 sheet

32 lb. (120 g/m

High Capacity Feeder

Plain Paper 12.5 in. (317 mm) 3,000 sheets

20 lb. (75 g/m

)

Heavy Media Tray

Plain Paper 1.6 in. (40 mm) 300 sheets

32 lb. (120 g/m

Transparencies 0.8 in. (20 mm) 150 transparencies

47 lb. (175 g/m

Paper Labels 1.6 in. (40 mm) 200 sheets

up to 48 lb. (180 g/m

Glossy Paper 1.6 in. (40 mm) 360 sheets

32 lb. (120 g/m

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)

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Output Capacity by Media and Source

Media Stack Heights Capacity

Standard Output Bin

Plain Paper Varies 550 sheets

Glossy Paper Varies 130 sheets

Bin 1 and Staple Punch Finisher Bin 1

Plain Paper Varies 100 sheets

Transparencies Varies 50 transparencies

Bin 2 - Staple Punch Finisher

Plain Paper 6.0 in.

(152 mm)

Notes:

- Performance may vary subject to media specifications and printer operating environment

- Media at ambient environment

- All media is letter/A4, unless otherwise noted

- All paper weights are stated in bond, unless otherwise noted

20 lb. (75 g/m

32 lb. (120 g/m

20 lb. (75 g/m

47 lb. (175 g/m

1,000 sheets 20 lb. (75 g/m

)

Paper

Following are media guidelines for successful printing:

• Rough, highly textured, limp or pre-curled papers will result in

lower print quality and more frequent paper feed failures.

• Colored papers, treated and preprinted papers, letterhead and

labels must be able to withstand 338 deg. F (170 deg. C) fusing temperature.

• Preprinted forms and letterhead should be selected using

guidelines found in the printer User's Guide. The chemical

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5055-01X

process used in preprinting may render some papers unsuitable.

• Unsuitable papers include multipart forms and documents;

chemically treated papers; coated, synthetic and thermal papers; and preprinted papers requiring a high degree of registration.

• Recycled paper less than 21 lb. (80 g/m

unacceptable results.

) may cause

Envelopes

•

Envelopes should be fed long edge first, with flap trailing.

• When Finisher is attached, only long edge fed envelopes wider

than 5.8 in. (148 mm) - feed direction dimension - may be used. To print smaller envelopes, the finisher must be undocked during the job.

• If envelope wrinkling occurs, refer to the User's Guide for correct

weight, type, loading and stacking of envelopes.

• All envelopes should be new, unused and without package

damage.

• Envelopes with excessive curl or twist exceeding 0.12 in. (6

mm), stuck together, with bent corners or nicked edges or those that interlock should not be used.

• Minimum weight: 20 lb. (75 g/m

)

• The following envelopes should not be used:

– Envelopes with windows, holes, perforations, cutouts, deep

embossing or package damage

– Envelopes with metal clasps, string ties or metal folding bars – Envelopes with exposed flap adhesive when the flap is in the

closed position

For best results, printing on new 24 lb. (90 g/m cotton bond envelopes is recommended.

Note: Under high-humidity conditions (over 60%) the envelopes may seal during printing.

) sulfite or 25%

Transparencies

•

Use letter sheets (p/n 12A5940) or A4-size sheets (p/n 12A5941) only

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Labels

Labels should be selected using guidelines found in the User's Guide or the Cardstock and Label Guide, and tested for acceptability.

Lexmark Glossy Paper

• Use letter sheets (p/n 12A5950) or A4-size sheets (p/n

12A5951) only

• Glossy paper is only supported from Tray 1, Multipurpose

Feeder and Heavy Media Tray.

Print Area

Printable area for the C910 printers

• To within 0.16 in. (4.2 mm) of all edges of the media (except

envelopes)

Options and Features

Lexmark C910 printers support only Lexmark C910 paper-handling options. These options are not compatible with any other Lexmark printer.

• 550-Sheet Drawer - (includes 550-sheet tray and support unit)

installs beneath the printer and holds approximately 550 sheets of 20 lb. paper. Multiple optional drawers (up to 3) are supported simultaneously.

• High-Capacity Feeder - is designed to provide an additional

input tray (Tray 3 or Tray 5, depending on the configuration) with a total capacity of 3,000 sheets (plain paper - letter or A4 -- 20 lb. (75 g/m and attaches to the right side of the printer.

). The High-Capacity Feeder is customer installable

• Heavy-Media Tray - is intended for special media such as

transparencies, labels and glossy paper. This is supported only as Tray 1 (top drawer location).

• Duplex Unit - offers two-side printing and is designed to

complement the Lexmark C910 printers.

• Finisher - offers stapling, hole punching, offset stacking and an

additional output bin. Two models will be available. 3- or 4-hole left-edge hole punching will be available. The single staple

General Information 1-21

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5055-01X

position is the upper left corner. The Finisher can support up to 1,100 sheets of unstapled, unpunched media. For stapled media, the output bin supports up to 30 stapled sets or 1,000 sheets. The stapler can staple a maximum of 30 sheets per set. Each C910 can support one Finisher.

• C910 Printer Cabinet - is customer installable and attaches

below the printer - printer sits on top of the printer stand. The printer cabinet raises the printer to the correct height for use with the optional finisher and high-capacity feeder. The printer cabinet and high-capacity feeder can be installed concurrently.

• Printer Base - is customer installable and attaches below the

printer - printer sits on top of the printer base. If used with two optional 550-sheet drawers, the printer base raises the printer to the correct height for use with the optional finisher and highcapacity feeder. The printer base and high-capacity feeder can be installed concurrently.

– C910 -3 optional drawers – C910n and C910dn -2 optional drawers

Connectivity

Standard

• Lexmark C910

– Bidirectional parallel and USB

• Lexmark C910n and Lexmark C910dn

– 10/100BaseTX Ethernet and USB

Optional Internal Local Connections

• Tri-Port Adapter (RS-232/RS-422 Serial, LocalTalkTM and

Infrared)

• RS-232C Serial/Parallel-C Interface Card

Note: USB is supported only under Windows 98, Windows Me, Windows XP, Windows 2000 operating systems, Sun's Sun Ray appliances running Sun Ray Server code version 1.2 or later, Sun Blade workstations and Apple Macintosh iMac computer with Operating System 8.6 or higher. A USB cable is included with this card.

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Network Connections

Internal Network Connections

• Lexmark MarkNet N2000 Series Internal Print Servers

– MarkNet N2000t for Token-Ring attachment – MarkNet N2001e for Ethernet 10BaseT/100BaseTX – MarkNet N2002e for Ethernet 10BaseT/10Base2

• Lexmark MarkNet N2003 Series Internal Fiber Print Servers,

including:

– MarkNet N2003fx SC – MarkNet N2003fx MTRJ

External Network Connections

• MarkNet X2000 Series External Print Servers

– MarkNet X2011e (1-port) for Ethernet 10BaseT/100BaseTX – MarkNet X2012e (1-port) for Ethernet 10BaseT/100BaseTX,

10BaseT/10Base2

– MarkNet X2031e (3-port) for Ethernet 10BaseT/100BaseTX – MarkNet X2030t (3-port) for Token-Ring attachment

Standard Ethernet and MarkNet Compatibility

The standard Ethernet connection, MarkNet N2000 series and MarkNet N2003 series internal and MarkNet X2000 series external print servers support NetPnP 7.0 or later on Windows NT 4.0, Windows 2000 and Windows XP systems.

The Ethernet and Token-Ring print servers and the standard Ethernet connection support the following protocols:

• TCP/IP

• Novell (IPX/SPX including NetWare Directory Services)

• AppleTalk™

• LexLink (DLC/LLC)

The TCP/IP standard set of application services is supported, including DHCP, WINS, SNMP (industry standard printer MIB), http, lpr/lpd, ftp, tftp, ping, finger, telnet, bootp and rarp. The following protocols are also supported:

General Information 1-23

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5055-01X

• IPP: Internet Printing Protocol

• SLP: Service Location Protocol

• NTP: Network Timing Protocol

Printers with standard Ethernet, MarkNet N2000 series and MarkNet N2003 series internal print servers and MarkNet X2000 series external print servers support a resident Web page with Microsoft Internet Explorer 4.0 or later and Netscape Navigator 4.5 or later for Windows 95, Windows 98, Windows Me, Windows 2000, Windows XP or Windows NT. The remote operator panel is available using the standard Ethernet connection, MarkNet N2000, MarkNet N2003 or MarkNet X2000 Series external print servers installed in or used with a Lexmark C910 printer.

Data Streams

• PostScript® 3 Emulation

• Hewlett-Packard Company PCL® 6 Emulation

Operating Systems

The Lexmark C910 printers are compatible with applications running under the following operating systems for either local or network connections

Resident Fonts

Emulation Scalable Fonts Bitmapped Fonts

PCL 6 84 2

PostScript 3 156 0

For a listing of specific fonts, visit www.lexmark.com.

There are 83 symbol sets in the PCL 6 emulation to support all the languages that use these characters.

Not all symbol sets are supported by all fonts. Refer to the Technical Reference manual or use the printer operator panel to find which symbol sets are supported by each font.

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Support for the euro currency character is included in all applicable fonts for both PostScript and PCL emulations. Twelve PCL symbol sets support the euro character, including all seven Windows symbol sets.

Additional fonts can be downloaded to the printer RAM, optional Flash DIMM or hard disk. PCL emulation supports both scalable and bit mapped downloadable fonts. PostScript emulation supports only downloadable scalable fonts. Font cards and font cartridges are not supported.

Power and Electrical Specifications

Power Requirements

Average nominal power requirements for the base printer configuration (110 volt). Power level are shown in watts.

Printing States (average Power)

Printing 1,250 1,830 1,600

Idle Sleep Mode

Lexmark C910(n)[dn]

45 45 45

Lexmark C910(n)[dn] with High Capacity Feeder

Lexmark C910(n)[dn] with Finisher

Note: Using a 220 to 110 power converter with the 110 volt printer is not recommended.

General Information 1-25

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Electrical Specifications

110 Volt Model

• 120 to 127 VAC at 50 to 60 hertz (hz) nominal

110 Volt Model with High-Capacity Feeder or Finisher

• 120 to 240 VAC at 50 to 60 hertz (hz) nominal

Operating Clearances

•

Left side: 13 in. (330 mm)*

• Right side:

– C910(n) 6 in. (152 mm)**, *** – C910dn 13 in. (330 mm)**, ***

• Front: 26 in. (660 mm)

• Rear: 5 in. (127 mm)

• Top:****

– 91029 in. (736.6 mm) – C910n(dn)34.3 in. (871.2 mm)

Note: * Clearance on left side should be 9 in. (228.6 mm) with the finisher attached.

** Clearance on right side should be 30 in. (762 mm) with the highcapacity feeder attached.

*** Clearance on the right side should be 13 in. (330 mm) with the duplex attached, but not the high-capacity feeder.

**** With the high-capacity feeder or finisher attached, the top clearance needs to be 43.8 in. (1,113 mm).

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Environment

• Printer Temperature and Humidity

– Operating

- Temperature: 60 to 90

- Relative Humidity: 8 to 80%

F (15.6 to 32.3o C)

- Maximum Wet Bulb Temperature: 73

F (22.8o C)

- Altitude: 10,000 ft. (0 to 3,048 meters)

- Atmospheric Pressure: 74.6 kPa

– Power Off

- Temperature: 50 to 110

F (10 to 43.3o C)

- Relative Humidity: 8 to 80%

- Maximum Wet Bulb Temperature: 80.1o F (26.7

- Altitude: 10,000 ft. (0 to 3,048 meters)

– Shipping Printer without Print Cartridges

- Temperature: 0 to 140

F (0.6 to 60o C)

- Relative Humidity: 5 to 100%

- Maximum Wet Bulb Temperature: 85

F (30o C)

- Altitude: 34,000 ft. (10,300 meters)

– Storing Printer without Print Cartridges

- Temperature: 0 to 140

F (0.6 to 60o C)

- Relative Humidity: 5 to 80%

- Maximum Wet Bulb Temperature: 85

- Altitude: 34,000 ft. (10,300 meters)

– Shipping Supply Items

General Information 1-27

F (30o C)

Page 44

5055-01X

- Temperature: -40 to 104

F (-40 to 40o C)

- Relative Humidity: 5 to 100%

- Maximum Wet Bulb Temperature: 80

F (27o C)

– Storing Supply Items

- Temperature: 0 to 104

F (0.6 to 40o C)

- Relative Humidity: 5 to 80%

- Maximum Wet Bulb Temperature: 80

F (27o C)

• In some cases, performance specifications (such as paper OCF,

EP cartridge usage) are specified to be measured at an ambient condition.

Physical Specifications and Weight

Width Depth Height Weight

Printers

Lexmark C910 27.4in

(695 mm)

Lexmark C910n 27.4 in.

(695 mm)

25.8 in. (655 mm)

20.2 in. (512 mm)

25.2 in. (641 mm)

177.1 lb. (80.5 kg)

217.8 lb. (99 kg)

Lexmark C910dn 27.4 in.

(695 mm)

Options

Duplex Option 27.4 in.

(695 mm)

550-Sheet Drawer

High Capacity Feeder

27.4 in (695 mm)

14.2 in. (360 mm)

1-28 Service Manual

25.8 in. (655 mm)

13.8 in (350 mm)

25.8 in. (655 mm)

20.7 in (525 mm)

25.2 in. (641 mm)

4.7 in. (120 mm)

5.1 in. (129 mm)

25 in. (635 mm)

230.8 lb. (104.9 kg)

13 lb. (5.9 kg)

40.8 lb. (18.5 kg)

50 lb. (22.6 kg)

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5055-01X

Width Depth Height Weight

Staple Punch Finisher, 1,100 Sheet (with stand)

Furniture

Printer Cabinet 26.6 in.

Printer Base 26.6 in.

19.5 in. (495 mm)

(675 mm)

20.5 in. (520 mm)

23.6 in. (598 mm)

21.6 in. (547 mm)

41.7 in (1,060 mm)

20.4 in. (517 mm)

10.2 in. (260 mm)

48.6 lb. (22 kg)

57.5 lb. (26 kg)

33 lb. (15 kg)

Note: Weight includes cartridges and supplies.

Maintenance Approach

The diagnostic information in this manual leads you to the correct field replaceable unit (FRU) or part. Use the error code charts, symptom index, and service checks to determine the symptom and repair the failure. The removals in the Repair Information chapter may help you identify parts.

After you complete the repair, perform tests as needed to verify the repair.

Standard Inspection and Cleaning Procedure

• Switch off Printer power, and disconnect the AC power cord

from the electrical outlet.

• Remove and inspect the photodevelopers and toner cartridges,

shielding them from strong light.

• Inspect the interior of the printer, removing foreign matter such

as paper clips, staples, pieces of paper/transparencies, paper dust, hair, oil, grease or toner.

• Clean the printer interior using a lint-free cloth, dampened

slightly with cold water. Do not use solvents or chemical cleaners to clean the printer interior.

• Use only the specified oil or lubricant on printer parts (some

service parts are lubricated at the factory).

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• Inspect and, if necessary, clean all rubber/plastic and D rollers

with A lint-free cloth, dampened slightly with cold water. Dry the rollers with a lint-free cloth.

• While cleaning, inspect the interior of the printer for damaged

wires, loose connections, toner leakage, loose springs, and damaged or worn parts.

• Be sure the printer is on a single, flat, strong table or desk top.

• Inspect all supplies (OCR, cartridges, photodevelopers/toner

cartridges, belts, fuser CRUs) and paper sources (cassettes, trays, feeders, duplex drawers, finishers, mailbox trays) for obvious damage and proper installation (paper under corner bucklers, paper guides not too tight) Inspect for correct media usage (paper, transparencies, labels).

• Print a Demo page.

• If additional paper sources are installed, print a Demo page

from each of these, (if possible).

Note: Failure to print from an additional tray or feeder may imply one or more pins are bent in the mating connector.

Return Parts

Engineering periodically analyzes returned parts for failure modes. Include a printed test (DEMO) page, before and after the repair, and tag any returnable parts with a description of the failure.

Service Recommendations

Before leaving the printer check the following:

• Be sure printer is on a flat, level, strong tabletop or level floor.

This is very important for color printers that use belts. Check and set registration as necessary.

• Shake all cartridges and be sure they are correctly installed and

fully seated.

• While the cover is open, wipe any residual toner from the LEDs

using a lint free cloth.

• If you have serviced the finisher option, and in the process

pulled it away from the printer during repair, ensure that it is properly aligned with the printer.

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Tools

The removal and adjustment procedures require the following tools and equipment:

• Magnetic tip Phillips screwdrivers, large and small

• Flat-blade screwdrivers

• Analog volt ohmmeter (a digital volt ohmmeter may also be

used)

• Needle nose pliers

• Tweezers, C-ring pliers

• Magnifier (20 times or higher)

• 6-angle wrench (1.5 mm)

When you make voltage readings, always use frame ground unless another ground is specified.

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Serial Number

Open the front door, the serial number is located as shown. The serial number is also on the menu settings page you can print from the Tests Menu.

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Abbreviations

ASIC Application-Specific Integrated Circuit CSU Customer Setup DRAM Dynamic Random Access Memory EP Electrophotographic Process EPROM Erasable Programmable Read-Only Memory ESD Electrostatic Discharge FRU Field Replaceable Unit HVPS High Voltage Power Supply LAN Local Area Network LASER Light Amplification by Stimulated Emission of

Radiation LCD Liquid Crystal Display LED Light-Emitting Diode LVPS Low Voltage Power Supply NVRAM Nonvolatile Random Access Memory OEM Original Equipment Manufacturer PICS Problem Isolation Charts PIXEL Picture Element POR Power-On Reset POST Power-On Self Test PQET Print Quality Enhancement Technology RIP Raster Image Processor ROS Read-Only Storage SRAM Static Random Access Memory UPR Used Parts Replacement V ac Volts alternating current V dc Volts direct current

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Processes and Configuration

In this printer, the toner of four colors (magenta, cyan, yellow and black) melts and deposits dots on paper, which record color image information. This printing process is called the electrophotography process.

Electrophotography Process

In the electrophotography process, electrically charged toner, exposes, develops, transfers, and is cleaned with an aluminum photosensitive drum. A photoconductive layer forms on the surface of the drum when the drum is exposed to light.

The surface of the photosensitive drum is negatively charged, forming the electrostatic image on the surface of the photosensitive drum. This charge is directed to the photosensitive medium at a low voltage, reducing the generation of ozone to a very low level. When the drum surface is charged, the image is recorded by irradiating light from the LED printhead, forming the electrostatic image. The LED printhead array along with the Selfoc lens array provide a single-dot line of the image, in a one-to-one arrangement. The image data from the printhead controller causes the LED to emit light in black dots. These black dots form an image of dots on the photosensitive drum.

The LED printhead minimizes the displacement of images during the color print process, when images of multiple printheads overlap, causing dot position accuracy to be much higher. Since light from the volume of the LED array varies depending on the LED printheads, the light emitting value is recorded in the EPROM of the printer controller. When the LED printhead is replaced, the light emitting value should be entered for each printhead while the printer is in maintenance mode.

Since the LED printhead and EPROM on the printhead controller board of this printer are paired, the EPROM on the printhead controller board should also be replaced whenever the printhead is replaced.

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Development Unit

Toner forms the electrostatic image on the photosensitive drum during exposure. The single component, non-magnetic toner and the lusterless color toner are weather-resistant, and fade little under ultraviolet rays. This is helpful in saving documents.

Toner in the hopper is agitated and supplied to the development roll by the supply roll. A (conductive rubber) doctor blade is fitted to the development roll. Toner enters between the development roll and doctor blade by the rotating development roll and is negatively charged, forming the electrostatic image on the photosensitive drum. Toner attaches to the bright portion of the photosensitive drum per the voltage of the development roll.

Transfer Unit

Paper feeds electrostatically by the transfer belt and is carried to the transfer unit which turn at the speed of the photodeveloper drum. A charge roller applies a positive charge to the paper. The toner image formed on the photoconductor drum is transferred to the paper from the back side by the positive dc voltage applied to the transfer sheet, which is in contact with the paper through the transfer belt.

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Cleaning Unit

Toner remaining on the photosensitive drum following transfer, is scraped away with the cleaning blade, and collected in the recovery bag as waste toner. Residual toner on the photosensitive medium is removed by the eraser.

Paper Feeding / Fusing

The main unit drive is composed of drives 1 and 2. Drive 1 feeds paper, stands by, drives the belt unit, separates, fuses, feeds the face up delivery unit, and drives the photodevelopers and toner cartridge by rotations of the dc motor. Drive 2 drives the face down delivery unit by rotations of the stepper motor.

The expansion paper feeder and the duplex unit use independent motors to drive the paper delivery unit.

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Drive System

Drive 1, composed of a 100 V dc motor and gear unit, feeds the registration paper from the paper feeder and drives the belt unit, photodevelopers / toner cartridge, fusing unit, and face-up delivery unit. The motor rotates by the ON signal from the printer controller/ motor drive unit and sends a rotation synchronization detection signal to the motor drive unit.

Note: The gear unit of drive 1 is adjusted in phase and should not be disassembled.

Drive 2, composed of a hybrid stepping motor and gear unit, drives the face-down delivery unit.

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Paper Feeding

The paper feeder is a two-way system composed of the multi-paper feeder (100 sheets maximum) and an integrated 550 sheet tray). Optionally, the expansion paper feeders (550 sheets) can be increased to four layers. A high capacity paper feeding system (3,000 sheets) may be used. Combining the multi-paper feeder, expansion paper feeders, and high capacity paper feeding system the printer has a maximum paper supply of up to 5,850 sheets.

Cassette Paper Feeder

The paper feeding solenoid turns on by the signal from the printer controller. The paper feeding roller interconnected with drive 1, rotates with the spring clutch and picks the paper in the paper cassette.

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Multipurpose Feeding

The multipaper feed solenoid turns on by the signal from the printer controller. The multipurpose feed roll interconnected with the drive 1 through the spring clutch, rotates and picks the paper in the multipurpose feeder.

MPF Clutch

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Registration Unit

Media temporarily stops (registration) when adjusting the paper leading edge parallel with that of the image, or when adjusting the timing with the black image.

The upper and lower registration rolls are arranged in parallel with the photosensitive drum for black imaging. The lower registration roll incorporates a registration clutch which feeds or stops the paper.

In the forward direction of the registration roll, a registration sensor (photo interrupter) is provided to detect paper fed from the paper feeder and to stop paper jam feeding.

Registration Sensor

Registration Roller

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Separation Unit

The transfer belt and paper are separated with the belt drive roll by separation fingers.

Drive Roll

Paper

Separation Fingers

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Fuser Unit

By applying heat and pressure, the image is melted and fused to the paper.

The upper and lower rollers are heated and pressure-fitted. A heater is positioned in the roller tube and a thermistor and thermostat remain in contact with the outside of the tube. Separation fingers are attached near the upper roller to separate the paper from the roller.

Each thermistor sends the surface temperature of the roller to the printer controller. The printer controller turns the heater on or off according to the voltage of each thermistor. If the controller fails and the temperature of the roller exceeds specifications, the temperature fuse (TCO) connected to each heater opens, preventing overheating.

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Delivery

After completing the fusing process, paper is discharged from the printer. The delivery sensor detects the paper condition and the FU/FD deflector switches between the face-up and face-down paper delivery. The paper from the fuser pulls down the sensing lever turning on the delivery sensor (photo interrupter). If the delivery unit remains on longer than specified, the printer controller determines that the printer is jammed, and the paper delivery flap lever switches to either face down or face up.

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Belt Unit

After passing through the registration unit, paper is electrostatically fed by the transfer belt through the positively charged feed roll at the inlet of the belt unit and fed by the running belt. The belt runs at the same speed as the photosensitive drum causing the image on the C, M, Y and K developer to transfer to paper.

Since the photosensitive drum has a small diameter and the paper is electrostatically fed by the transfer belt, the paper is easily separated, after toner image transfer, and fed to the next developer. Excess toner is scraped from the drum with a cleaning blade and recovered into the waste toner bottle.

Adjust the registration when the belt unit is replaced. The registration is adjusted at the leading edge of the image or by adjusting the color image. This should be adjusted in maintenance mode, when the belt unit is replaced.

The transfer belt is conductive and seamless. If the transfer belt is damaged, toner can cling to the belt and contaminate the paper. When fingerprints or other stains appear on the belt, wipe them away with a dry cloth or cloth moistened with alcohol.

A density sensor is positioned facing the belt drive roller for automatic density adjustment and registration adjustment. A mechanism is provided to clean the sensor surface, which is interconnected with the opening and closing of the front cover.

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Belt Up/Down

In monochrome printing, switching to color printing is not required. To avoid unnecessary wear of the photosensitive drum by the cleaning blade, this operation is stopped with the electromagnetic clutch in drive 1. The transfer belt is lowered so as not to touch the photosensitive drum during color printing.

The transfer belt moves up and down with the switching shaft cam by the electromagnetic clutch in drive 1. The belt position is used to detect the cam position with the photo sensor, using the fan shaped light blocking plate attached to the switching shaft. Printing with the transfer belt lowered is called monochrome mode and color printing is called color mode.

Expansion Paper Feeder

The optional expansion paper feeder can be installed at the lower part of the main unit. Including the main unit, up to five layers of cassettes can be used for cassette paper feeding.

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Duplex Unit

A duplex unit can be optionally installed in the main unit, allowing two-sided printing.

Selecting Paper feeding, Registration, Transfer, Separation, Fusing, or Face-Down paper discharging with the pulse motor in the duplex unit, feeding is stopped before the paper is delivered. Paper delivery is then reversed and fed to the duplex unit.

Paper fed with the duplex unit stops once, and the center position is corrected by the operation of the side guide plate. Paper is then refed by the printer controller signal to the main unit, and, following printing on the back side, is delivered to the normal feeding path.

When non-offset type color toner is used, the process speed in the OHP mode is decreased, causing toner to melt sufficiently with the fusing unit, while the fusing temperature is set higher than usual to increase the smoothness on the surface of the toner image.

This mode restricts paper feeding to multipaper feeding, not cassette feeding.

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Paper Weight

Purpose:

To identify the relative weight of the paper loaded in a specific source and ensure that the toner adheres properly to the printed page.

Values:

Plain Weight Preprint Weight Bond Weight Labels Weight

CardStock Weight

Trnsprncy Weight

Colored Weight Envelope Weight Ltrhead Weight

Custom <x> Weight

Light 16-20 lb.

Normal* 20-24 lb.

Heavy 24-28 lb.

Glossy

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Clearing Paper Jams

250

241

242

243

244

200 Paper Jam <x> Pages Jammed (Check Areas A-F)

A 200 Paper Jam message indicates that paper is jammed. The display alternates between 200 Paper Jam <x> Pages Jammed and Check Areas A-F.

If there is a paper jam when you turn the printer on, the second line of the 200 Paper Jam message will be blank. To resolve the message, you must clear all paper from the paper path. Check and clear areas A through F.

249

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Check Areas A, B

This message indicates a paper jam in the transfer belt, fuser, or output roller area. To clear areas A, B:

1. Open the top cover. Never touch the photodevelopers drum on the underside of the toner cartridge. The paper may be covered with un-fused toner, which can stain clothing.

2. Remove any paper on the transfer belt.

3. If the paper source was the multipurpose feeder, check the area between the multipurpose feeder and the transfer belt. Do not use any pointed objects to remove the paper. This could cause permanent damage to the transfer belt.

4. Check the fuser area and top cover for additional jams.

5. If there is no jam in the fuser area or top cover, close the top cover and front door, and then press Go. If a jam is present, continue with step 4.

6. Lift the fuser pressure release lever and slowly pull the paper out of the fuser toward the inside of the printer.

7. Rotate the fuser pressure release lever down.The top cover will not close until the lever is in the down position.

8. Check the top cover for additional jams.

9. If there is no jam in the top cover, close the top cover and front door, and then press Go.

10. Remove the jam from the top cover.

11. Close the top cover and the front door.

Check Area C

Jams that cause a Check Area C message require opening the duplex jam access door. If you are printing on small paper, the following steps may not clear the jam. See “Removing Small Size

Paper From the Duplex Unit” on page 1-51.

1. Open the duplex jam access door on the right side of the printer.

2. Remove the jam.

3. Press Go.

Note: If the paper jam message continues, check and clear all paper from the paper path.

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Check Area D

This message indicates a paper jam in the duplex unit area. To clear area D:

1. Open the duplex jam access door on the right side of the printer.

2. Gently pull out the duplex unit.

3. Turn the paper forwarding dial counterclockwise. If the paper advances out of the duplex unit, remove the jam and go to step

7. If the paper does not advance, go to step 4.

4. Open the duplex unit covers.

5. Remove the jam.

6. Close the duplex unit covers.

7. Push the duplex unit back into the printer.

8. Close the access door.

9. Press Go. If the paper jam message continues, check and clear all paper from the paper path.

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Removing Small Size Paper From the Duplex Unit

When printing on both sides of A5 or other small size paper, you may need to partially remove the duplex unit to clear the jam.

1. Turn off the printer.

2. Open the duplex unit door.

3. Loosen the two screws.

4. Pull out the duplex unit far enough to see the duplex unit inlet.

5. Remove jam from the duplex unit inlet.

6. Slide the duplex unit in.

7. Align the thumbscrews on the duplex unit with the holes in the printer.

8. Tighten the thumbscrews to secure the duplex unit.

9. Close the duplex unit door.

Check Area E

This message indicates a jam in the top, middle, or bottom optional drawer paper path area. If you have a high capacity feeder, pull the feeder away from the printer.

1. Open the jam access door on the top optional drawer.

2. Remove the jam.

3. Close the jam access door.

4. Close the jam access door.

5. Press Go.

Note: If the paper jam message continues, check and clear all paper from the paper path.

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Check Area F

1. Pull the high capacity feeder away from the printer.

2. Open the jam access door on the top optional drawer.

3. Remove any jams.

4. Close the jam access door.

5. Slide the high capacity feeder until the feeder locks to the docking frame. When the feeder is in the correct position, you hear a click.

6. Press Go.

Note: If the paper jam message continues, check and clear all paper from the paper path.

250 Paper Jam Check MP Feeder

1. Slowly pull the jam straight out of the multipurpose feeder. If the paper will not come out, continue.

2. Open the top cover.

3. Remove the paper on the transfer belt.

4. Close the top cover.

5. Press Go.

24<x> Paper Jam Check Tray <x>

Jams in five areas result in a 24<x> Paper Jam message, where x represents the tray number where the jam has occurred. Paper jam messages 241–244 indicate a jam has occurred in one of the trays.

241-244 Paper Jam

1. Pull out the tray indicated on the display.

2. Remove any wrinkled or creased paper.

3. Push down on the remaining paper in the tray until the bottom plate clicks into place.

4. Close the tray.

5. Press Go.

Note: If the paper jam message continues, check and clear all paper from the paper path.

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249 Paper Jam Check Tray <x>

A 249 Paper Jam Check Tray <x> message indicates a jam has occurred in the high capacity feeder.

1. Open the top cover.

2. Remove the jam.

3. Close the top cover.

4. Press Go.

200 Paper Jam (Check Areas G, H, I)

A 200 Paper Jam indicates a jam has occurred in the finisher.

1. Open the finisher top cover and remove any jams.

2. Push the finisher to printer latch and hold it in.

3. Roll the finisher away from the printer.

4. Release the latch.

5. Remove any jams from the finisher entry guide.

6. Lift the finisher entry guide handle.

7. Lift the dust box, rotate the bottom outward, and remove it.

8. Release the finisher entry guide handle.

9. Lift the jam access cover.

10. Rotate the green knob to move the paper into the access cover area then remove the paper.

11. Lift the finisher entry guide handle.

12. Place the top of the dust box in the finisher, and rotate the bottom of the dust box into the finisher.

13. Release the finisher entry guide.

14. Open the stapler door.

15. Remove any jams from the accumulator. You can rotate the accumulator knob counterclockwise to move the paper down.

16. Close the stapler door.

17. Roll the finisher toward the printer until the finisher locks into place.

18. Make sure the finisher is properly aligned with the printer.

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High Capacity Feeder (HCF)

Paper Feed and Separation Mechanism

The high capacity feeder consists of a tray and paper transfer mechanisms. The paper feed and separation mechanism uses a friction roller separation and paper feed system with a non-contact magnet type maintenance-free torque limiter.

When the paper feed clutch turns on, the paper feed roller shaft rotates and the paper feed roller is driven with the one-way clutch. The call roller rotates with the relay gears to feed the top paper. The reverse roller rotates along with the paper feed roller.

During paper feed, if two sheets feed, the reverse roller rotates by the torque limiter, returning the lower sheet. When the paper feed sensor (reflection type sensor) detects the paper, the pickup solenoid turns off to raise the call roller, transferring the paper to the registration roller.

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Registration Operation

When the paper feed motor rotates, the transfer roller is driven with relay gears. The reverse roller shaft rotates the gears on the paper feed clutch in the direction of the arrow and stops by the friction force of the paper feed roller.

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Tray Up/Down Mechanism

The driving force of the tray motor transmits to the tray driving pulley through the gears. Moving the tray moves up and down through the tray driving belt. After the paper loads, and the top cover is set, the pickup solenoid turns on to lower the call roller. When the tray moves up, the call roller is raised by the top surface of the paper, and the shield plate on the up sensor is released from the up sensor which turns off the tray motor.

Also, when the top surface of the paper lowers during printing and the up sensor is shielded, the tray motor again rotates forward to raise the paper.

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When the down button is pressed, the tray motor reverses to move the tray down. During the down motion of the tray, as the top surface of paper passes the paper level sensor, the tray motor stops. The tray moves down by about 500 sheets. The down sensor detects the tray lower limit position.

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Tray Up Condition

Tray up motion stops when the:

• Up sensor is OFF (not shielded)

• Power cord is connected and the joint switch is ON

• Up sensor is ON (shielded) during printing

• Top cover is closed, or when up sensor is ON

Tray Down Condition

Tray down motion stops when the:

• Paper level sensor is OFF

• Down button is pressed

• Paper end is detected

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Size Detection Mechanism

The paper size can be switched between A4 and letter (11 inches) by changing the side fence position.

The paper size sensor 2 detects the fixing screw 2 at the A4 position.

The paper size sensor 1 detects the fixing screw 1 at the letter position. Tray up motion stops when the up sensor is OFF, not shielded.

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Residual Paper Detection Mechanism

The residual paper quantity in the tray is detected with four photo interrupters. The quantity of pages remaining in the sheet feeder displays in the following increments:

• Near end, about 80 sheets

• About 300 sheets

• About 1,000 sheets

• About 2,000 sheets

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Paper End Detection

A reflection type sensor is provided on the top stay to detect the paper top surface and the paper end.

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Maintenance Mode

DIP Switch Specifications

The DIP switches on the high capacity paper feed board have the following functions:

• Function switching and initial setting of the standard machine or

optional machine.

Function Switch Maintenance Switch DIP Switch

43 2 1

Description

OFF 1 Standard machine

ON XX

OFF X 2 Optional machine

ON X

initial setting

• Maintenance switch (test mode selection) is valid without

connecting to the printer controller board.

Function Switch Maintenance Switch DIP Switch

43 2 1

OFF Test OFF mode

ON XX

OFF X Linear velocity 101

ON X

OFF XXLinear velocity 129

Test paper feed mode (standalone)

mm/s Thick paper mode

mm/s Plain paper mode

OFF X Linear velocity 180

ON X

mm/s

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• Test paper feed operation.

1. Turn on the docking safety switch with a non-metallic object. The interface cable with the printer controller board need not be connected.

2. Close the top cover or manually activate the cover switch.

3. Load paper.

4. Wait until the paper tray stops and the pickup solenoid turns off

5. With the cover closed or with the cover switch activated, press and hold the tray down button for more than 1/2 second. In steps 1 and 2, paper feeding starts and is continuously fed until the cover is opened. The test ends when the tray motor stops and the paper ejects or the tray down button is released.

• Test Sequence

1. The tray motor moves the tray to the upper limit.

2. The pickup solenoid activates then de-activates.

3. When the tray down switch is pressed for longer than 1/2 second, the paper feed motor starts, the paper feed clutch operates and feeding begins.

4. Feeding can be stopped by releasing the tray down button.

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High Capacity Paper Feed Sensor / Switch Test

Check the condition of each sensor from the lighting of LEDs on the high capacity paper feed board. When each sensor operates with the power supplied, the associated LED lights.

To perform the test:

Interrupt the photointerrupter sensor signal or actuate the microswitch being tested while observing the associated LED on the highcapacity paper feed board.

LED Sensor Name

1 Paper size sensor 1 switch (letter size 11 inches)

2 Paper size sensor 1 switch (A4 size)

3 Residual paper sensor 1 switch

4 Residual paper sensor 2 switch

5 Residual paper sensor 3 switch

6 Residual paper sensor 4 switch

7 Paper level sensor switch

8 Lower limit switch

9 Cover open sensor switch

10 Docking sensor switch

11 Upper limit switch

12 Paper sensor switch

13 Paper feed sensor switch

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Finisher

The 5055-01X finisher communicates with the host engine through serial interface signals and performs the following operating modes:

• Straight - exits paper to the upper tray.

• Punch and straight - stops paper at the leading edge, punches

it, and exits it to the upper tray.

• Invert - sends paper to the accumulator, and exits it to the lower

tray.

• Punch and invert - stops paper at the leading edge, punches it,

and sends it to the accumulator where it exits to the lower tray.

• Invert and staple - jogs each sheet of paper in the

accumulator. When the accumulated number of sheets reaches a designated number, it staples a batch of sheets, and then exits the stapled set to the lower tray.

• Punch, invert and staple - stops paper at the leading edge,

punches it, sends it to the accumulator and jogs each sheet. When the accumulated number of sheets reaches a designated number, the batch is stapled, and exited to the lower tray.

• Invert and offset - jogs each paper in the accumulator, shifts it

by the offset, then exits it to the lower tray.

• Punch, invert and offset - stops paper at the leading edge,

punches it, sends it to accumulator and jogs each page, offsets it, and then exits it to the lower tray.

Note: Capacity - up to 100 sheets of 20 lb. paper in tray 1 (top tray) up to 1000 sheets of 20 lb. paper in tray 2 (lower tray).

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Finisher Cross Section

Upper Tray

Invert Exit Idle Roller

Lower Tray

Invert Exit Roller

Paddle Roller

Straight Exit Roller

Straight Exit Idle Roller

Path Select Gate

Input Paper Guide

Accumulator

Stapler Unit

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Electrical Parts Function

• Finisher Set Switch - detects the connection with the printer.

• Staple Cartridge Set Switch - detects when the staple

cartridge is open.

• Staple Existence Sensor - detects when the stapler is empty.

• Staple Home Position Sensor - locates home position for

stapling.

• Paper Register Sensor - detects when paper enters into the

finisher, detects paper jams and triggers the punch.

• Paper Exit Sensor (Upper Tray) (Letter), Invert Path Sensor

(A4) - detects when paper feeds into the lower tray, the end of jogged paper and paper jams.

• Paper Exit Sensor - detects that paper has exited the printer.

• Tractor Home Position Sensor - locates home position for the

drive belt.

• Elevator Upper Limit Sensor - detects when the lower tray is

at the highest position.

• Jogging Home Position Sensor - locates home position for

the jogging bar.

• Paper Detecting Sensor - detects when the paper is at the

correct position for stapling.

• Paper Full Sensor A - detects when there is a full stack of

paper on the lower tray.

• Paper Upper Level Sensor B - Locates the top of the stacked

paper on lower tray. Also detects when paper is removed from stacked papers on the lower tray while stacking.

• Elevator Lower Limit Sensor - detects when the lower tray is

at the lowest position.

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Paper Feed Mechanism

Paper is transported, after it is detected at paper register sensor by drive gears and drive belts, driven by the paper feed motor or tractor drive motor and other rollers. Paper path route differs subject to the selected mode.

Straight Paper Path (Exit paper to Upper Tray)

Paper feed motor drives and rotates rollers. The path select gate is changed by the path select solenoid, and paper goes out to upper tray by the exit rollers.

1. Path select gate solenoid

2. Solenoid

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Path Select Gate

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Inverting Paper Path (Exit paper to lower tray through accumulator)

The paper feed motor drives and rotates the rollers as paper feeds through the registration rollers, path select gate, and patting rollers. Paper is detected by the invert path sensor. Paper is then jogged by jogging bar and driven by the belt drive motor before exiting to the lower tray (accumulator)

Lower Tray

Invert Exit Idle Roller

Invert Exit Roller

Tractor Drive Motor

Patting Roller

Path Select Gate

Paper Registration Sensor

Registration Roller

Accumulator

Invert Path Sensor

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Accumulator

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Paper Registration Sequence

Paper is stopped at the hole punching position momentarily before the paper standstill clutch turns ON and changes to open. At this point the driving force cannot be transmitted to the register rollers. The paper then stops at register rollers, and since the finisher keeps feeding the paper from the host printer, the leading edge of the paper stops at the register rollers. The paper buckles at the entrance. The paper buckle feeds downward to the lower entrance paper guide, where it is hole-punched at the leading edge. The paper standstill clutch turns OFF and changes to close as the driving force transmits to register rollers and the paper transportation restarts.

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Punch Unit Driving Sequence

When the paper feed motor drives, the driving force is transmitted through punch unit drive gear to the clutch gears of the punch unit. Since the punch clutch is normally opened OFF, the driving force is not transmitted to the driving shaft. When the punch clutch turns ON, it is closed and unlocked. The driving force is then transmitted from the clutch gears to the driving shaft. As the shaft turns, the rotation of the cam causes the paper to be hole-punched. Immediately after one turn of the shaft, the punch clutch turns OFF, and the drive shaft stops.

Drive Shaft

Paper Entrance Sensor

Cover

Registration Roller

Cover

Blade

Cam Punch Clutch

Registration Idler Roller

Registration Clutch

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Jogging / Offset Mechanism

Jogging Sequence

Each sheet, upon entering the accumulator, is aligned by the jogging bar which moves the sheet horizontally until the edge of the sheet contacts the registration plate. The paper detecting sensor detects the paper position for stapling.

Offsetting Sequence

Sheets of jogged paper are offset by the horizontal movement of the jogging bar. The jogging bar, is moved horizontally by the rack and pinion mechanism, while the jogging motor rotates. Each plate spring on the jogging bar pushes the rack in the direction of the pinion gear, so that the rack and pinion gears meet securely. The distance of the offset bar movement depends on paper size, A4 or letter.

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Detection of Fixed Position

The fixed position of the jogging bar is detected by the jogging home position sensor and a sensor flag united with the pinion. The fixed position is set when the sensor detects the sensor flag. This fixed position is used as a reference point to calculate the distance of the movement of the jogging bar and offset bar depending on paper size.

Stapling Mechanism

The stapler motor rotation drives a gear link and cam mechanism. The cam movement allows the stapler mechanism to operate.

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Elevator Sequence

The wire drum rotates by the elevator motor as the wire drum rolls the wire pulling the hook plate up and down. The lower tray moves up by the driving force of the elevator motor until the elevator upper limit sensor is ON, the paper feeds onto the Tray, or until the paper upper level sensor B is ON if no paper feeds onto the Tray. When paper feeds out to the lower tray and the paper full sensor A turns ON, the lower tray moves down until the paper full sensor A turns OFF. If paper feeds onto the lower tray when the elevator lower limit sensor turns ON, and the paper upper level sensor B turns ON, paper feeding from host printer is prohibited. When paper is removed from the lower tray and the paper upper level sensor B turns OFF, the lower tray moves up.

Paper Full

Belt

Wire

Hook Plate

Sensor A

Paper Upper Level Sensor B

Elevator Upper Limit Sensor

Elevator Lower Limit Sensor

Wire Drum

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Belt Drive Motor

Elevating Motor

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Finisher Installation

Attaching the Docking Plate and Guide Rail

1. Lift the printer exit tray halfway and remove. You will need the tray when the finisher is attached.

2. Insert the docking plate tabs into the printer.

3. Align the thumbscrews on the docking plate with the holes in the side of the printer.

4. Tighten the docking plate thumbscrews.

5. Align the thumbscrews on the guide rail plate with the holes in the side of the printer cabinet or stand.

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6. Tighten the guide rail plate thumbscrews.

7. Align the thumbscrews on the guide rail with the holes in the guide rail plate.

8. Tighten the guide rail thumbscrews.

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Combining the Finisher and Stand

1. Roll the finisher stand onto the guide rail. Do not push the stand all the way up against the printer.

2. Remove and discard all shipping tape, packing material, and the metal shipping bracket. Caution: The finisher weighs 19.7 kg (42.2 lbs).

3. Open the stapler door.

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4. Remove all shipping tape and packing material.

5. Lift the stapler locking lever.

6. Raise the stapler.

7. Remove all shipping tape and packing material.

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8. Close the stapler.

9. Close the stapler door.

10. Align the two sockets on the bottom of the finisher with the legs of the finisher stand.

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11.Lower the finisher onto the finisher stand.

Caution: When assembled, the finisher weighs 26.3 kg (56.9lbs) and requires at least two people to lift it safely.

12.Remove both thumbscrew spacers.

13.Tighten the two thumbscrews.

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Lexmark C910 5055-01x Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Safety Information

1. General Information