HP LaserJet Pro 200 Color MFP M275nw Service Manual

LASERJET PRO 200 COLOR MFP

Service Manual

M275nw

HP LaserJet Pro 200 color MFP M275nw

Service Manual

Copyright and License

Trademark Credits

Important Safety Notice

© 2011 Copyright Hewlett-Packard
Development Company, L.P.

Reproduction, adaptation, or translation
without prior written permission is
prohibited, except as allowed under the
copyright laws.

The information contained herein is subject
to change without notice.

The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products and
services. Nothing herein should be
construed as constituting an additional
warranty. HP shall not be liable for technical
or editorial errors or omissions contained
herein.

Part number: CF040-90969

Edition 1, 10/2011

Microsoft®, Windows®, Windows® XP,
and Windows Vista® are U.S. registered
trademarks of Microsoft Corporation.

®

ENERGY STAR

and the ENERGY STAR

mark are registered U.S. marks.

Warning: This product includes a camera
arm that is used to photograph documents.
This camera arm is not intended to be used

®

as a handle or carrying device. To carry the
product, use the handles located on the
bottom right and left sides of the product.

Conventions used in this guide

TIP: Tips provide helpful hints or shortcuts.

NOTE: Notes provide important information to explain a concept or to complete a task.

CAUTION: Cautions indicate procedures that you should follow to avoid losing data or damaging

the product.

WARNING! Warnings alert you to specific procedures that you should follow to avoid personal

injury, catastrophic loss of data, or extensive damage to the product.

ENWW iii

Table of contents

1 Removal and replacement ................................................................................................ 1

Introduction ............................................................................................................................. 2

Removal and replacement strategy ............................................................................................. 2

Electrostatic discharge .............................................................................................................. 3

Required tools .......................................................................................................................... 3

Service approach ..................................................................................................................... 4

Before performing service .......................................................................................... 4

After performing service ............................................................................................. 4

Post-service test ......................................................................................................... 4

Product verification test ............................................................................... 4

Parts removal order ................................................................................................... 5

Removal and replacement procedures ........................................................................................ 6

Input tray ................................................................................................................. 6

Output bin ................................................................................................................ 7

Print cartridges .......................................................................................................... 8

Imaging drum ......................................................................................................... 13

Secondary transfer roller .......................................................................................... 20

Separation pad assembly ......................................................................................... 21

Covers, pickup roller, and camera arm ...................................................................... 22

Right cover assembly ................................................................................ 22

Left rear cover assembly ............................................................................ 23

Pickup roller ............................................................................................ 24

Remove the pickup roller assembly .............................................. 25

Rear door assembly .................................................................................. 26

Remove the rear door assembly .................................................. 26

Rear-lower cover ...................................................................................... 27

Remove the rear-lower cover ....................................................... 27

Cosmetic cover ........................................................................................ 28

Remove the cosmetic cover ......................................................... 28

Fuser cover .............................................................................................. 29

Remove the fuser cover .............................................................. 29

Camera arm assembly .............................................................................. 30

ENWW v

Remove the camera arm assembly ............................................... 30

Top cover assembly .................................................................................. 34

Remove the top cover assembly ................................................... 34

Door hinge .............................................................................................. 37

Remove the door hinge .............................................................. 37

Left front cover and control panel assembly ................................................. 38

Remove the left front cover and control panel assembly .................. 38

Top-upper-left front cover ........................................................................... 41

Remove the top-upper-left front cover ............................................ 41

Top-upper-right front cover ......................................................................... 43

Remove the top-upper-right front cover ......................................... 43

Inner cover .............................................................................................. 44

Remove the inner cover .............................................................. 44

Main assemblies ..................................................................................................... 45

Formatter and wireless PCA ....................................................................... 45

Remove the formatter and wireless PCA ....................................... 45

Fuser power supply .................................................................................. 47

Remove the fuser power supply ................................................... 47

ITB assembly ............................................................................................ 48

Remove the ITB assembly ............................................................ 49

Fuser delivery assembly ............................................................................ 58

Remove the fuser delivery assembly ............................................. 59

Engine controller assembly ........................................................................ 63

Remove the engine controller assembly ........................................ 63

Low-voltage power supply assembly ........................................................... 68

Remove the low-voltage power supply assembly ............................ 68

2 Solve problems ............................................................................................................... 75

Solve problems checklist ......................................................................................................... 76

Step 1: Make sure that the product is set up correctly .................................................. 76

Step 2: Check the cabling or wireless connection ........................................................ 76

Step 3: Check the control panel for error messages ..................................................... 77

Step 4: Check the paper .......................................................................................... 77

Step 5: Check the software ....................................................................................... 77

Step 6: Test print functionality ................................................................................... 77

Step 7: Test copy functionality .................................................................................. 77

Step 8: Check the supplies ....................................................................................... 77

Step 9: Try sending a print job from a computer ......................................................... 78

Print product reports ............................................................................................................... 79

Troubleshooting processes ....................................................................................................... 80

Determine the problem source ................................................................................... 80

vi ENWW

Power subsystem ..................................................................................................... 81

Power-on checks ...................................................................................... 81

Tools for troubleshooting ......................................................................................................... 82

Component diagnostics ............................................................................................ 82

Engine diagnostics ................................................................................... 82

Engine test ................................................................................ 82

Diagrams ............................................................................................................... 83

Locations of formatter connectors ............................................................... 83

Locations of major components .................................................................. 84

Cross section view ..................................................................... 84

External covers and doors (front view) ......................................... 85

External covers and doors (rear view) .......................................... 86

General timing chart ................................................................................. 87

General circuit diagram ............................................................................ 88

Internal print-quality test pages .................................................................................. 89

Print a Diagnostics Page ........................................................................... 89

Interpret the Print Quality Page ................................................................... 89

Print-quality troubleshooting tools .............................................................................. 91

Repetitive image defects ruler .................................................................... 91

Calibrate the product to align the colors ...................................................... 91

Interpret control panel messages ............................................................................... 92

Control panel message types ..................................................................... 92

Control-panel messages ............................................................................ 92

10.XXXX Supply memory error .................................................... 92

49 Error, Turn off then on ........................................................... 93

50.X Fuser Error ........................................................................ 93

79 Error, Turn off then on ........................................................... 93

Door open ................................................................................ 93

Engine comm. Error ................................................................... 94

Engine error. Press OK to continue. ............................................. 94

Jam in <location> ...................................................................... 94

Load paper .............................................................................. 94

Print failure ............................................................................... 95

Event log messages ................................................................................................. 96

Show an event log ................................................................................... 96

Clear jams ............................................................................................................................ 98

Jam locations .......................................................................................................... 98

Clear jams from the input tray ................................................................................... 98

Clear jams from the output bin ................................................................................ 101

Clear jams from the rear door ................................................................................. 102

Paper feeds incorrectly or becomes jammed ............................................................................ 104

ENWW vii

The product does not pick up paper ........................................................................ 104

The product picks up multiple sheets of paper ........................................................... 104

Prevent paper jams ................................................................................................ 104

Improve print quality ............................................................................................................. 105

Check the paper type setting (Windows) .................................................................. 105

Check the paper type setting (Mac OS X) ................................................................. 105

Use paper that meets HP specifications .................................................................... 106

Print a cleaning page ............................................................................................ 106

Check the estimated remaining life for the print cartridges and imaging drum ............... 107

Inspect the print cartridges and imaging drum for damage ......................................... 107

Improve copy quality ............................................................................................................ 109

Clean the camera lens cover .................................................................................. 109

Solve problems with cropped copies ....................................................................... 109

The product prints slowly ....................................................................................................... 109

Solve USB connection problems ............................................................................................. 110

Solve wired network problems ............................................................................................... 110

Poor physical connection ....................................................................................... 111

The computer is using the incorrect IP address for the product ..................................... 111

The computer is unable to communicate with the product ........................................... 111

The product is using incorrect link and duplex settings for the network ......................... 111

New software programs might be causing compatibility problems .............................. 112

The computer or workstation might be set up incorrectly ............................................. 112

The product is disabled, or other network settings are incorrect ................................... 112

Solve wireless network problems ............................................................................................ 112

Wireless connectivity checklist ................................................................................ 112

The product does not print after the wireless configuration completes ........................... 113

The product does not print, and the computer has a third-party firewall installed ........... 113

The wireless connection does not work after moving the wireless router or product ........ 113

Cannot connect more computers to the wireless product ............................................. 113

The wireless product loses communication when connected to a VPN .......................... 114

The network does not appear in the wireless networks list .......................................... 114

The wireless network is not functioning ..................................................................... 114

Reduce interference on a wireless network ............................................................... 114

Service mode functions ......................................................................................................... 115

Secondary service menu ........................................................................................ 115

Open the secondary service menu ............................................................ 115

Secondary service menu structure ............................................................. 115

Product resets ....................................................................................................... 117

Restore the factory-set defaults ................................................................. 117

NVRAM initialization .............................................................................. 117

Product updates ................................................................................................................... 117

viii ENWW

3 Parts and diagrams ...................................................................................................... 119

Order parts by authorized service providers ............................................................................ 120

Order replacement parts ........................................................................................ 120

Related documentation and software ....................................................................... 120

Supplies part numbers ........................................................................................... 120

Service parts ........................................................................................................ 121

Whole-unit replacement part numbers ...................................................................... 121

How to use the parts lists and diagrams .................................................................................. 121

Covers and external assemblies (1 of 3) ................................................................................. 122

Covers and external assemblies (2 of 3) ................................................................................. 124

Covers and external assemblies (3 of 3) ................................................................................. 126

Internal assemblies ............................................................................................................... 128

PCAs .................................................................................................................................. 130

Alphabetical parts list ........................................................................................................... 132

Numerical parts list .............................................................................................................. 135

Appendix A Service and support ..................................................................................... 139

Hewlett-Packard limited warranty statement ............................................................................. 140

HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement .................. 142

HP's LaserJet imaging drum limited warranty statement for replacement imaging drums ................ 143

HP policy on non-HP supplies ................................................................................................ 144

HP anticounterfeit Web site ................................................................................................... 145

Data stored on the print cartridge and imaging drum ............................................................... 146

End User License Agreement .................................................................................................. 147

OpenSSL ............................................................................................................................. 150

Customer support ................................................................................................................. 151

Repack the product .............................................................................................................. 152

Appendix B Product specifications ................................................................................... 153

Physical specifications .......................................................................................................... 154

Power consumption, electrical specifications, and acoustic emissions .......................................... 154

Environmental specifications .................................................................................................. 154

Appendix C Regulatory information ................................................................................. 155

FCC regulations ................................................................................................................... 156

Environmental product stewardship program ........................................................................... 157

Protecting the environment ...................................................................................... 157

Ozone production ................................................................................................. 157

Power consumption ............................................................................................... 157

Toner consumption ................................................................................................ 157

ENWW ix

Paper use ............................................................................................................. 157

Plastics ................................................................................................................. 157

HP LaserJet print supplies ....................................................................................... 158

Return and recycling instructions ............................................................................. 158

United States and Puerto Rico .................................................................. 158

Multiple returns (more than one cartridge) .................................. 158

Single returns .......................................................................... 158

Shipping ................................................................................ 158

Non-U.S. returns .................................................................................... 159

Paper .................................................................................................................. 159

Material restrictions ............................................................................................... 159

Disposal of waste equipment by users in private households in the European Union ...... 160

Chemical substances ............................................................................................. 160

Material Safety Data Sheet (MSDS) ......................................................................... 160

For more information ............................................................................................. 160

Declaration of Conformity ..................................................................................................... 161

Safety statements ................................................................................................................. 163

Laser safety .......................................................................................................... 163

Canadian DOC regulations .................................................................................... 163

VCCI statement (Japan) .......................................................................................... 163

Power cord instructions .......................................................................................... 163

Power cord statement (Japan) ................................................................................. 163

EMC statement (Korea) .......................................................................................... 164

Laser statement for Finland ..................................................................................... 164

GS statement (Germany) ........................................................................................ 165

Substances Table (China) ....................................................................................... 165

Restriction on Hazardous Substances statement (Turkey) ............................................. 165

Restriction on Hazardous Substances statement (Ukraine) ........................................... 165

Additional statements for wireless products .............................................................................. 166

FCC compliance statement—United States ................................................................ 166

Australia statement ................................................................................................ 166

Brazil ANATEL statement ........................................................................................ 166

Canadian statements ............................................................................................. 166

European Union regulatory notice ........................................................................... 166

Notice for use in France ......................................................................................... 167

Notice for use in Russia ......................................................................................... 167

Korean statement .................................................................................................. 167

Taiwan statement .................................................................................................. 168

Vietnam Telecom wireless marking for ICTQC Type approved products ....................... 168

Index ............................................................................................................................... 169

x ENWW

List of tables

Table 2-1 External covers and doors (front view) ..................................................................................... 85

Table 2-2 External covers and doors (rear view) ..................................................................................... 86

Table 2-3 Event-log messages ............................................................................................................... 96

Table 2-4 Secondary service menu ...................................................................................................... 115

Table 3-1 Order parts, accessories, and supplies .................................................................................. 120

Table 3-2 Related documentation and software .................................................................................... 120

Table 3-3 Supplies part numbers ......................................................................................................... 120

Table 3-4 Whole-unit replacement part numbers ................................................................................... 121

Table 3-5 Covers and external assemblies (1 of 3) ................................................................................ 123

Table 3-6 Covers and external assemblies (2 of 3) ................................................................................ 125

Table 3-7 Covers and external assemblies (3 of 3) ................................................................................ 127

Table 3-8 Internal assembly ................................................................................................................ 129

Table 3-9 PCAs ................................................................................................................................ 131

Table 3-10 Alphabetical parts list ....................................................................................................... 132

Table 3-11 Numerical parts list ........................................................................................................... 1 3 5

Table B-1 Physical specifications ......................................................................................................... 154

Table B-2 Operating-environment specifications .................................................................................... 154

ENWW xi

List of figures

Figure 1-1 Phillips and Pozidriv screwdriver comparison ............................................................................ 3

Figure 1-2 Parts removal order ............................................................................................................... 5

Figure 1-3 Remove the tray .................................................................................................................... 6

Figure 1-4 Remove the output bin ............................................................................................................ 7

Figure 1-5 Remove the secondary transfer roller ...................................................................................... 20

Figure 1-6 Remove the separation pad assembly (1 of 1) ......................................................................... 21

Figure 1-7 Remove the right cover assembly ........................................................................................... 22

Figure 1-8 Remove the left rear cover assembly ...................................................................................... 23

Figure 1-9 Open the 2ndary Service menu ............................................................................................. 24

Figure 1-10 Remove the pickup roller assembly (1 of 2) ........................................................................... 25

Figure 1-11 Remove the pickup roller assembly (2 of 2) ........................................................................... 25

Figure 1-12 Remove the rear door assembly (1 of 2) ............................................................................... 26

Figure 1-13 Remove the rear door assembly (2 of 2) ............................................................................... 26

Figure 1-14 Remove the rear-lower cover ............................................................................................... 27

Figure 1-15 Remove the cosmetic cover ................................................................................................. 28

Figure 1-16 Remove the fuser cover ...................................................................................................... 29

Figure 1-17 Remove the camera arm assembly (1 of 6) ........................................................................... 30

Figure 1-18 Remove the camera arm assembly (2 of 6) ........................................................................... 31

Figure 1-19 Remove the camera arm assembly (3 of 6) ........................................................................... 31

Figure 1-20 Remove the camera arm assembly (4 of 6) ........................................................................... 32

Figure 1-21 Remove the camera arm assembly (5 of 6) ........................................................................... 32

Figure 1-22 Remove the camera arm assembly (6 of 6) ........................................................................... 33

Figure 1-23 Remove the top cover assembly (1 of 4) ............................................................................... 34

Figure 1-24 Remove the top cover assembly (2 of 4) ............................................................................... 35

Figure 1-25 Remove the top cover assembly (3 of 4) ............................................................................... 35

Figure 1-26 Remove the top cover assembly (4 of 4) ............................................................................... 36

Figure 1-27 Remove the door hinge ...................................................................................................... 37

Figure 1-28 Remove the left front cover and control panel assembly (1 of 5) .............................................. 38

Figure 1-29 Remove the left front cover and control panel assembly (2 of 5) .............................................. 39

Figure 1-30 Remove the left front cover and control panel assembly (3 of 5) .............................................. 39

Figure 1-31 Remove the left front cover and control panel assembly (4 of 5) .............................................. 40

Figure 1-32 Remove the left front cover and control panel assembly (5 of 5) .............................................. 40

ENWW xiii

Figure 1-33 Remove the top-upper-left front cover (1 of 2) ........................................................................ 41

Figure 1-34 Remove the top-upper-left front cover (2 of 2) ........................................................................ 42

Figure 1-35 Remove the top-upper-right front cover ................................................................................. 43

Figure 1-36 Remove the inner cover ...................................................................................................... 44

Figure 1-37 Remove the formatter and wireless PCA (1 of 3) .................................................................... 45

Figure 1-38 Remove the formatter and wireless PCA (2 of 3) .................................................................... 46

Figure 1-39 Remove the formatter and wireless PCA (3 of 3) .................................................................... 46

Figure 1-40 Remove the fuser power supply (1 of 2) ............................................................................... 47

Figure 1-41 Remove the fuser power supply (2 of 2) ............................................................................... 47

Figure 1-42 Remove the ITB assembly (1 of 17) ...................................................................................... 49

Figure 1-43 Remove the ITB assembly (2 of 17) ...................................................................................... 49

Figure 1-44 Remove the ITB assembly (3 of 17) ...................................................................................... 50

Figure 1-45 Remove the ITB assembly (4 of 17) ...................................................................................... 50

Figure 1-46 Remove the ITB assembly (5 of 17) ...................................................................................... 51

Figure 1-47 Remove the ITB assembly (6 of 17) ...................................................................................... 51

Figure 1-48 Remove the ITB assembly (7 of 17) ...................................................................................... 52

Figure 1-49 Remove the ITB assembly (8 of 17) ...................................................................................... 52

Figure 1-50 Remove the ITB assembly (9 of 17) ...................................................................................... 53

Figure 1-51 Remove the ITB assembly (10 of 17) .................................................................................... 53

Figure 1-52 Remove the ITB assembly (11 of 17) .................................................................................... 54

Figure 1-53 Remove the ITB assembly (12 of 17) .................................................................................... 54

Figure 1-54 Remove the ITB assembly (13 of 17) .................................................................................... 55

Figure 1-55 Remove the ITB assembly (14 of 17) .................................................................................... 55

Figure 1-56 Remove the ITB assembly (15 of 17) .................................................................................... 56

Figure 1-57 Remove the ITB assembly (16 of 17) .................................................................................... 56

Figure 1-58 Remove the ITB assembly (17 of 17) .................................................................................... 57

Figure 1-59 Remove the fuser delivery assembly (1 of 6) .......................................................................... 59

Figure 1-60 Remove the fuser delivery assembly (2 of 6) .......................................................................... 59

Figure 1-61 Remove the fuser delivery assembly (3 of 6) .......................................................................... 60

Figure 1-62 Remove the fuser delivery assembly (4 of 6) .......................................................................... 60

Figure 1-63 Remove the fuser delivery assembly (5 of 6) .......................................................................... 61

Figure 1-64 Remove the fuser delivery assembly (6 of 6) .......................................................................... 61

Figure 1-65 Reinstall the fuser delivery assembly (1 of 2) ......................................................................... 62

Figure 1-66 R

igure 1-67 Remove the engine controller assembly (1 of 7) ..................................................................... 63

F

Figure 1-68 Remove the engine controller assembly (2 of 7) ..................................................................... 64

Figure 1-69 Remove the engine controller assembly (3 of 7) ..................................................................... 64

Figure 1-70 Remove the engine controller assembly (4 of 7) ..................................................................... 65

Figure 1-71 Remove the engine controller assembly (5 of 7) ..................................................................... 65

Figure 1-72 Remove the engine controller assembly (6 of 7) ..................................................................... 66

Figure 1-73 Remove the engine controller assembly (7 of 7) ..................................................................... 66

einstall the fuser delivery assembly (2 of 2) ......................................................................... 62

xiv ENWW

Figure 1-74 Installing a replacement engine controller assembly ............................................................... 67

Figure 1-75 Remove the low-voltage power supply assembly (1 of 9) ........................................................ 68

Figure 1-76 Remove the low-voltage power supply assembly (2 of 9) ........................................................ 69

Figure 1-77 Remove the low-voltage power supply assembly (3 of 9) ........................................................ 69

Figure 1-78 Remove the low-voltage power supply assembly (4 of 9) ........................................................ 70

Figure 1-79 Remove the low-voltage power supply assembly (5 of 9) ........................................................ 70

Figure 1-80 Remove the low-voltage power supply assembly (6 of 9) ........................................................ 71

Figure 1-81 Remove the low voltage power supply assembly (7 of 9) ........................................................ 71

Figure 1-82 Remove the low-voltage power supply assembly (8 of 9) ........................................................ 72

Figure 1-83 Remove the low-voltage power supply assembly (9 of 9) ........................................................ 72

Figure 1-84 Reinstall the low-voltage power supply ................................................................................. 73

Figure 1-85 Installing a replacement low-voltage power supply ................................................................ 73

Figure 2-1 Locations of formatter connectors ........................................................................................... 83

Figure 2-2 Cross section view ............................................................................................................... 84

Figure 2-3 External covers and doors (front view) .................................................................................... 85

Figure 2-4 External covers and doors (rear view) .................................................................................... 86

Figure 2-5 General timing diagram ....................................................................................................... 87

Figure 2-6 General circuit diagram ....................................................................................................... 88

Figure 2-7 Diagnostics Page ................................................................................................................. 89

Figure 3-1 Covers and external assemblies (1 of 3) ............................................................................... 122

Figure 3-2 Covers and external assemblies (2 of 3) ............................................................................... 124

Figure 3-3 Covers and external assemblies (3 of 3) ............................................................................... 126

Figure 3-4 Internal assembly ............................................................................................................... 128

Figure 3-5 PCAs ............................................................................................................................... 130

ENWW xv

1 Removal and replacement

Introduction

●

Removal and replacement strategy

●

Electrostatic discharge

●

Required tools

●

Service approach

●

Removal and replacement procedures

●

ENWW 1

Introduction

This chapter describes the removal and replacement of field-replaceable units (FRUs) only.

Replacing FRUs is generally the reverse of removal. Occasionally, notes and tips are included to
provide directions for difficult or critical replacement procedures.

HP does not support repairing individual subassemblies or troubleshooting to the component level.

Note the length, diameter, color, type, and location of each screw. Be sure to return each screw to its
original location during reassembly.

Incorrectly routed or loose wire harnesses can interfere with other internal components and can become
damaged or broken. Frayed or pinched harness wires can be difficult to find. When replacing wire
harnesses, always use the provided wire loops, lance points, or wire-harness guides and retainers.

Removal and replacement strategy

WARNING! Turn the product off, wait 5 seconds, and then remove the power cord before

attempting to service the product. If this warning is not followed, severe injury can result, in addition to
damage to the product. The power must be on for certain functional checks during troubleshooting.
However, disconnect the power supply during parts removal.

Never operate or service the product with the protective cover removed from the laser/scanner
assembly. The reflected beam, although invisible, can damage your eyes.

The sheet-metal parts can have sharp edges. Be careful when handling sheet-metal parts.

CAUTION: Do not bend or fold the flat flexible cables (FFCs) during removal or installation. Also, do

not straighten pre-folds in the FFCs. You must fully seat all FFCs in their connectors. Failure to fully seat
an FFC into a connector can cause a short circuit in a PCA.

NOTE: To install a self-tapping screw, first turn it counterclockwise to align it with the existing thread

pattern, and then carefully turn it clockwise to tighten. Do not overtighten. If a self-tapping screw-hole
becomes stripped, repair the screw-hole or replace the affected assembly.

TIP: For clarity, some photos in this chapter show components removed that would not be removed to

service the product. If necessary, remove the components listed at the beginning of a procedure before
proceeding to service the product.

2 Chapter 1 Removal and replacement ENWW

Electrostatic discharge

CAUTION: Some parts are sensitive to electrostatic discharge (ESD). Look for the ESD reminder

when removing product parts. Always perform service work at an ESD-protected workstation or mat, or
use an ESD strap. If an ESD workstation, mat, or strap is not available, ground yourself by touching the
sheet-metal chassis before touching an ESD-sensitive part.

Protect the ESD-sensitive parts by placing them in ESD pouches when they are out of the product.

Required tools

#2 Phillips screwdriver with a magnetic tip and a 152-mm (6-inch) shaft length

●

Small flat-blade screwdriver

●

Torx screwdriver, size 6

●

Needle-nose pliers

●

ESD mat (if one is available) or ESD strap

●

Penlight (optional)

●

CAUTION: Always use a Phillips screwdriver (callout 1). Do not use a Pozidriv screwdriver

(callout 2) or any motorized screwdriver. These can damage screws or screw threads.

Figure 1-1 Phillips and Pozidriv screwdriver comparison

ENWW

Electrostatic discharge

3

Service approach

Before performing service

Remove all paper from the product.

●

Turn off the power using the power button.

●

WARNING! The power button must be turned off before performing service. Failure to turn off

the power leaves the fuser engaged and prevents its removal.

Unplug the power cable and interface cable or cables.

●

Place the product on an ESD workstation or mat (if one is available), or use an ESD strap. If an

●

ESD workstation, mat, or strap is not available, ground yourself by touching the sheet-metal
chassis before touching an ESD-sensitive part.

Remove the print cartridges and imaging drum. See

●

drum on page 13.

Remove the input tray. See

●

After performing service

Plug in the power cable.

●

Reinstall the print cartridges.

●

Load paper in the product.

●

Post-service test

Perform the following test to verify that the repair or replacement was successful.

Product verification test

1. Verify that you have completed the necessary reassembly steps.

2. Make sure that the tray contains clean, unmarked paper.

3. Attach the power cord and interface cable or interface cables, and then turn on the product.

Print cartridges on page 8 and Imaging

Input tray on page 6.

4. Verify that the product is in the Ready state.

5. Print a configuration page, and then verify that the expected printing sounds occur.

6. Send a print job from the host computer, and then verify that the output meets expectations.

7. Make a copy.

8. Clean the outside of the product with a damp cloth.

4 Chapter 1 Removal and replacement ENWW

Parts removal order

cartridges

Separation
cover assy

Rear-lower

assy

cover assy

cover

Top cover
cover

assy

cover assy

cover

cover

arm assy

PCA

assy

Top-upper-

Left rear

Figure 1-2 Parts removal order

Component Remove Remove Remove Remove Remove Remove Remove Remove Remove Remove Remove Remove Remove
Input tray
Output bin
Print

Imaging
drum
Secondary
transfer
roller

pad
Right cover
assy
Left rear

Pickup roller

Rear door
assy

cover
Cosmetic
cover

Fuser cover

Camera arm
assy

Wireless PCA

assy

Door hinge

Left front

Control
panel
Top-upper­left-front
cover

right-front
cover

Inner cover

Formatter

Fuser power
supply

ITB assy

Fuser
delivery assy

Engine
controller
assy

Low-voltage
power
supply assy

Input tray

Separation
pad
Right cover
assy
Right cover
assy
Right cover
assy
Right cover

Right cover
assy
Left rear
cover assy
Right cover
assy
Right cover
assy
Right cover

Right cover
assy

Right cover
assy

Right cover
assy

Right cover
assy

cover assy

Left rear
cover assy

Right cover
assy

Right cover
assy

Right cover
assy

Right cover
assy

Right cover
assy

Left rear
cover assy
Left rear
cover assy
Left rear

Left rear
cover assy

Left rear
cover assy
Left rear
cover assy
Left rear

Left rear
cover assy

Left rear
cover assy

Left rear
cover assy

Left rear
cover assy

Left rear
cover assy

Left rear
cover assy

Left rear
cover assy

Left rear
cover assy

Left rear
cover assy

Rear door
assy

Cosmetic

Cosmetic
cover

Cosmetic
cover
Cosmetic
cover
Cosmetic

Cosmetic
cover

Cosmetic
cover

Cosmetic
cover

Cosmetic
cover

Cosmetic
cover

Cosmetic
cover

Cosmetic
cover

Cosmetic
cover

Fuser
cover

Fuser
cover
Fuser
cover
Fuser

Fuser
cover

Fuser
cover

Fuser
cover

Fuser
cover

Fuser
cover

Fuser
cover

Fuser
cover

Fuser
cover

Camera
arm assy
Camera
arm assy
Camera

Camera
arm assy

Camera
arm assy

Camera
arm assy

Camera
arm assy

Rear door
assy

Rear door
assy

Rear door
assy

Rear door
assy

Wireless
PCA
Wireless
PCA
Wireless

Wireless
PCA

Wireless
PCA

Wireless
PCA

Wireless
PCA

Rear-lower
cover

Rear-lower
cover

Rear-lower
cover

Rear-lower
cover

Top cover
assy
Top cover

Top cover
assy

Top cover
assy

Top cover
assy

Top cover
assy

Camera
arm assy

Camera
arm assy

Camera
arm assy

era

Cam
arm assy

Left front
cover

Left front
cover

Left front
cover

Wireless
PCA

Wireless
PCA

Wireless
PCA

Wireless
PCA

Top-upper­left-front
cover

Top cover
assy

Top cover
assy

Top cover
assy

Top cover
assy

Left front
cover

Left front
cover

Left front
cover

Left front
cover

Top-upper­left-front
cover
Top-upper­left-front
cover
Top-upper­left-front
cover

Top-upper­left-front
cover

Inner
cover

Inner
cover

Inner
cover

Inner
cover

Formatter

Formatter

Formatter

Formatter

ENWW

Service approach

5

Removal and replacement procedures

Input tray

Pull the tray away from the product to remove it.

Figure 1-3 Remove the tray

6 Chapter 1 Removal and replacement ENWW

Output bin

Pull the output bin straight up to remove it.

Figure 1-4 Remove the output bin

ENWW

Removal and replacement procedures

7

Print cartridges

1. Raise the camera arm to the fully open

position.

2. Remove the capture stage and set it aside.

3. Open the print-cartridge door, and identify

which print cartridge is in the opening.

8 Chapter 1 Removal and replacement ENWW

4. If the cartridge that you need to replace is not

in the opening, close the print-cartridge door.
Wait for the product to initialize before
proceeding with the next step.

5. From the Home screen on the product control

panel, touch the Supplies

button.

6. Touch the Cartridge Rotate button to move the

print-cartridge carousel to the next position. A
message informs you of which print cartridge
the carousel is rotating to. Repeat this step until
the print-cartridge carousel is in the correct
position.

NOTE: All doors must be closed when

pressing the Cartridge Rotate button. Also, the
imaging drum must be installed for the

Cartridge Rotate button to work.

ENWW

Removal and replacement procedures

9

7. Wait until the Rotating message disappears

and the rotation sounds stop, and then open
the print-cartridge door.

8. Grasp the old print cartridge by the center

handle and remove it.

9. Remove the new print cartridge from the

packaging. Place the used print cartridge in
the bag and box for recycling.

CAUTION: To prevent damage to the print

cartridge, hold the print cartridge at each end.
Do not touch the roller on the print cartridge.

10. Grasp both sides of the new print cartridge

and gently rock it to distribute the toner evenly.

10 Chapter 1 Removal and replacement ENWW

11. Grasp the print cartridge by the center handle

and remove the protective plastic shield.

NOTE: Do not touch the print cartridge

roller. Fingerprints on the roller can cause
print-quality problems.

12. Remove the sealing tape from the print

cartridge. Place the tape in the print-cartridge
box to return for recycling.

13. Grasp the print cartridge by the center handle

and insert the print cartridge into the product.

NOTE: Compare the color label on the print

cartridge to the color label in the carousel slot
to make sure the print cartridge color matches
the carousel position. (The black carousel
position has no label.)

CAUTION: If toner gets on your clothing,

wipe it off with a dry cloth and wash the
clothing in cold water. Hot water sets toner
into the fabric.

14. Close the print cartridge door.

NOTE: After closing the print cartridge door,

the control panel shows the Calibrating...
message. Allow a few minutes for the product
to calibrate.

NOTE: If you need to replace another print

cartridge, you must close the print cartridge
door before touching the Cartridge Rotate
button again.

You do not need to wait for the product to
calibrate when replacing the second print
cartridge. Instead, touch the Cartridge Rotate
button to rotate the carousel into position. After
you have replaced the print cartridges, the
product calibrates.

ENWW

Removal and replacement procedures

11

15. Reinstall the capture stage.

16. Lower the camera arm.

NOTE: Lower the camera arm to protect the

camera lens cover from damage.

12 Chapter 1 Removal and replacement ENWW

Imaging drum

NOTE: The imaging drum installed in this product is covered by the product warranty. Replacement

imaging drums have a one-year limited warranty from the date of installation. The imaging drum
installation date displays on the supplies status page. The HP Premium Protection Warranty applies only
to the print cartridges for the product.

1. Remove the paper from the input tray.

2. Raise the camera arm to the fully open

position.

ENWW

Removal and replacement procedures

13

3. Remove the capture stage and set it aside.

4. Open the print-cartridge door.

5. Pull the input tray straight out to remove it.

14 Chapter 1 Removal and replacement ENWW

6. Pull out on the top right portion of the front

cover, and rotate it forward to release the right
side. Remove the front cover from the product.

7. Lift the two levers that hold the imaging drum.

8. Remove the old imaging drum.

ENWW

Removal and replacement procedures

15

9. Remove the new imaging drum from the

packaging. Place the used imaging drum in
the bag and box for recycling.

10. Remove the protective shielding from the new

imaging drum.

CAUTION: To prevent damage, do not

expose the imaging drum to light. Cover it with
a piece of paper.

CAUTION: Do not touch the green roller.

Fingerprints can cause print-quality problems.

11. Insert the new imaging drum in the product.

12. Lower the two levers that hold the imaging

drum.

16 Chapter 1 Removal and replacement ENWW

13. Reinstall the front cover. Insert the left side first,

and then rotate the cover into place.

14. Reinstall the input tray.

15. Close the print-cartridge door.

ENWW

Removal and replacement procedures

17

16. Reinstall the capture stage.

17. Lower the camera arm.

NOTE: Lower the camera arm to protect the

camera lens cover from damage.

18 Chapter 1 Removal and replacement ENWW

18. Load the paper in the input tray.

19. Adjust the guides until they are snug against

the paper.

ENWW

Removal and replacement procedures

19

Secondary transfer roller

CAUTION: Do not touch the black spongy part of the roller. Skin oils might cause print-quality

problems.

1. Open the rear door.

2. Push in on the two clips at the left end of the roller (callout 1), and then rotate the roller up and

pull it to the left to remove it from the product.

Figure 1-5 Remove the secondary transfer roller

1

20 Chapter 1 Removal and replacement ENWW

Separation pad assembly

1. Turn the product face up.

NOTE: Dirt and debris can scratch the surface of the product. Make sure that you place the

product face up on a clean work space or on a clean soft cloth.

2. Remove two screws (callout 1) and the separation pad assembly (callout 2).

Figure 1-6 Remove the separation pad assembly (1 of 1)

2

1

ENWW

Removal and replacement procedures

21

Covers, pickup roller, and camera arm

Right cover assembly

Remove one screw (callout 1), and then starting at the rear vertical edge, release five tabs

▲

(callout 2) and remove the right cover assembly.

Figure 1-7 Remove the right cover assembly

2

1

22 Chapter 1 Removal and replacement ENWW

Left rear cover assembly

Remove one screw (callout 1), and then starting at the rear vertical edge, release seven tabs

▲

(callout 2) and remove the left rear cover assembly.

Figure 1-8 Remove the left rear cover assembly

1

2

ENWW

Removal and replacement procedures

23

Pickup roller

Rotate the pickup roller to the service position

To gain access to the roller locking tabs you must rotate the roller to the correct position for removal.

1. Make sure that one sheet of paper is loaded in the input tray.

NOTE: If more than one sheet of paper is loaded in the tray, this procedure will not be

successful.

2. Open the 2ndary Service menu:

a.

When the product is in the Ready state, touch the Setup

b. Touch the area on the control panel where the left arrow would be (callout 1), and then touch

the area on the control panel where the Cancel button would be (callout 2).

NOTE: These buttons are active even when they are not illuminated.

Figure 1-9 Open the 2ndary Service menu

button.

1

2

c.

Touch the Setup

3. Scroll down and touch the Pick roller button. Touch the OK button to rotate the roller to the

removal position.

4. Turn the product off. Unplug the product before removing any components.

NOTE: When the roller is in the removal position, the sheet of paper will have been pulled into

the paper path by about 12 mm (.5 in). This is visual confirmation that the roller has rotated to the
removal position.

24 Chapter 1 Removal and replacement ENWW

button again, and then touch the 2ndary Service button.

Before proceeding, remove the following components:

Separation pad assembly. See

●

Right cover assembly. See

●

Left rear cover assembly. See

●

Remove the pickup roller assembly

1. Remove four screws (callout 1) and the lower stay part (callout 2).

Figure 1-10 Remove the pickup roller assembly (1 of 2)

Separation pad assembly on page 21.

Right cover assembly on page 22.

Left rear cover assembly on page 23.

2

1

2. Release two tabs (callout 1) and remove the pickup roller (callout 2).

Figure 1-11 Remove the pickup roller assembly (2 of 2)

1

2

ENWW

Removal and replacement procedures

25

Rear door assembly

Before proceeding, remove the following components:

Right cover assembly. See

●

Remove the rear door assembly

1. Remove one screw (callout 1) and the bushing (callout 2).

Figure 1-12 Remove the rear door assembly (1 of 2)

Right cover assembly on page 22.

1

2

2. Pull out the shaft (callout 1) and remove the rear door assembly (callout 2).

Figure 1-13 Remove the rear door assembly (2 of 2)

1

2

26 Chapter 1 Removal and replacement ENWW

Rear-lower cover

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Rear door assembly. See

●

Remove the rear-lower cover

Remove two screws (callout 1) and the rear lower cover assembly (callout 2).

Figure 1-14 Remove the rear-lower cover

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Rear door assembly on page 26.

1

2

ENWW

Removal and replacement procedures

27

Cosmetic cover

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Remove the cosmetic cover

Remove two screws (callout 1), and then, starting at each end and working toward the center, use

▲

a small flat-blade screwdriver to gently unsnap the cover. Pull the cover straight forward to remove
it.

Figure 1-15 Remove the cosmetic cover

Right cover assembly on page 22.

Left rear cover assembly on page 23.

1

28 Chapter 1 Removal and replacement ENWW

Fuser cover

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Remove the fuser cover

Release four tabs, and starting at the top, pull off the fuser cover.

▲

Figure 1-16 Remove the fuser cover

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Cosmetic cover on page 28.

ENWW

Removal and replacement procedures

29

Camera arm assembly

NOTE: The formatter board contains camera-arm calibration data that is specific to each camera

arm. Camera arms cannot be swapped between units. Replacement camera arms require re-calibration
to create new calibration data.

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Remove the camera arm assembly

1. On the left side of the product, disconnect one connector and one FFC (callout 1) from the

formatter. Thread them up through the opening in the top cover.

Figure 1-17 Remove the camera arm assembly (1 of 6)

Cosmetic cover on page 28.

Fuser cover on page 29.

1

Right cover assembly on page 22.

Left rear cover assembly on page 23.

30 Chapter 1 Removal and replacement ENWW

2. Remove the rubber cap from the end of the base of the camera arm.

Figure 1-18 Remove the camera arm assembly (2 of 6)

3. Remove the hinge screw.

Figure 1-19 Remove the camera arm assembly (3 of 6)

ENWW

Removal and replacement procedures

31

4. Release the adhesive on the FFC (callout 1), route the wire bundle through the guide (callout 2).

Rotate the camera arm forward and pull it up to release the spring (callout 3).

NOTE: Two ferrite cores are attached to the FFC. They are not shown in this photograph.

Figure 1-20 Remove the camera arm assembly (4 of 6)

3

2

1

5. Remove one screw (callout 1) to release the grounding cable, and then remove the camera arm

assembly.

Figure 1-21 Remove the camera arm assembly (5 of 6)

1

32 Chapter 1 Removal and replacement ENWW

6. If you need to install a different camera-arm alignment plate, remove the rectangular plate (callout

1) by sliding it to the right, and then remove one Torx6 screw to remove the alignment plate
(callout 2).

Figure 1-22 Remove the camera arm assembly (6 of 6)

2

1

ENWW

Removal and replacement procedures

33

Top cover assembly

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Camera arm assembly. See

●

Remove the top cover assembly

1. Remove one screw (callout 1), and then remove the wireless PCA at the top right corner of the

formatter.

Figure 1-23 Remove the top cover assembly (1 of 4)

Fuser cover on page 29.

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Cosmetic cover on page 28.

Camera arm assembly on page 30.

1

34 Chapter 1 Removal and replacement ENWW

2. Remove two screws (callout 1).

Figure 1-24 Remove the top cover assembly (2 of 4)

1

3. Push the door hinge to the left to release it.

Figure 1-25 Remove the top cover assembly (3 of 4)

ENWW

Removal and replacement procedures

35

4. Flex the top cover to release it from the horizontal shaft in two locations (callout 1), and remove

the top cover assembly.

CAUTION: When removing and reinstalling this cover, be careful not to bend the two small

springs that are directly beneath the print-cartridge door hinges.

Figure 1-26 Remove the top cover assembly (4 of 4)

1

36 Chapter 1 Removal and replacement ENWW

Door hinge

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Camera arm assembly. See

●

Top cover assembly. See

●

Remove the door hinge

Rotate the door hinge to the right to release the pins, and then release the spring (callout 1).

▲

Figure 1-27 Remove the door hinge

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Cosmetic cover on page 28.

Fuser cover on page 29.

Camera arm assembly on page 30.

Top cover assembly on page 34

1

ENWW

Removal and replacement procedures

37

Left front cover and control panel assembly

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Camera arm assembly. See

●

Top cover assembly. See

●

Remove the left front cover and control panel assembly

1. On the formatter, disconnect two FFCs (callout 1), and disconnect the control-panel grounding

cable (callout 2).

Figure 1-28 Remove the left front cover and control panel assembly (1 of 5)

Fuser cover on page 29.

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Cosmetic cover on page 28.

Camera arm assembly on page 30.

Top cover assembly on page 34.

1

2

38 Chapter 1 Removal and replacement ENWW

2. Inside the left front cover, near the bottom, push up on the tab (callout 1) to release it.

Figure 1-29 Remove the left front cover and control panel assembly (2 of 5)

1

3. Rotate the left front cover to the right and slightly down to release the pin. Remove the left front

cover and control panel assembly.

Figure 1-30 Remove the left front cover and control panel assembly (3 of 5)

ENWW

Removal and replacement procedures

39

4. To separate the control panel from the left front cover, extend the control panel to its fully open

position. Pull down on the control-panel release bracket (callout 1) hold it open while you push the
control-panel kickstand through the slot (callout 2).

Figure 1-31 Remove the left front cover and control panel assembly (4 of 5)

1

5. Push the control-panel kickstand straight up to remove it.

Figure 1-32

2

40 Chapter 1 Removal and replacement ENWW

Top-upper-left front cover

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Camera arm assembly. See

●

Top cover assembly. See

●

Left front cover and control panel assembly (through step 3). See

●

assembly on page 38.

Remove the top-upper-left front cover

1. Underneath the top-upper-left front cover, remove one screw (callout 1).

Figure 1-33 Remove the top-upper-left front cover (1 of 2)

Fuser cover on page 29.

Right cover assembly on page 22.

Cosmetic cover on page 28.

Top cover assembly on page 34.

Left rear cover assembly on page 23.

Camera arm assembly on page 30.

Left front cover and control panel

1

ENWW

Removal and replacement procedures

41

2. Remove one screw (callout 1), and release one tab (callout 2). Remove the top-upper-left front

cover.

Figure 1-34 Remove the top-upper-left front cover (2 of 2)

21

42 Chapter 1 Removal and replacement ENWW

Top-upper-right front cover

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Camera arm assembly. See

●

Top cover assembly. See

●

Remove the top-upper-right front cover

Remove two screws (callout 1), and remove the top-upper-right front cover.

▲

Figure 1-35 Remove the top-upper-right front cover

Fuser cover on page 29.

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Cosmetic cover on page 28.

Camera arm assembly on page 30.

Top cover assembly on page 34.

1

ENWW

Removal and replacement procedures

43

Inner cover

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Camera arm assembly. See

●

Top cover assembly. See

●

Left front cover and control panel assembly (through step 3). See

●

assembly on page 38.

Top-upper-left-front cover. See

●

Remove the inner cover

Remove two screws (callout 1), and remove the inner cover.

▲

Figure 1-36 Remove the inner cover

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Cosmetic cover on page 28.

Fuser cover on page 29.

Camera arm assembly on page 30.

Top cover assembly on page 34.

Left front cover and control panel

Remove the top-upper-left front cover on page 41.

1

44 Chapter 1 Removal and replacement ENWW

Main assemblies

Formatter and wireless PCA

CAUTION: ESD sensitive.

Before proceeding, remove the following components:

Left rear cover assembly. See

●

Remove the formatter and wireless PCA

1. Remove one screw (callout 1), and then remove the wireless PCA at the top right corner of the

formatter.

Figure 1-37 Remove the formatter and wireless PCA (1 of 3)

Left rear cover assembly on page 23.

1

ENWW

Removal and replacement procedures

45

2. Disconnect three connectors and four FFCs (callout 1).

Figure 1-38 Remove the formatter and wireless PCA (2 of 3)

1

3. Remove four screws (callout 1), and then remove the formatter PCA.

Figure 1-39 Remove the formatter and wireless PCA (3 of 3)

1

46 Chapter 1 Removal and replacement ENWW

Fuser power supply

CAUTION: ESD sensitive.

Before proceeding, remove the following components:

Left rear cover. See

●

Remove the fuser power supply

1. Disconnect four connectors (callout 1)

Figure 1-40 Remove the fuser power supply (1 of 2)

Left rear cover assembly on page 23.

1

ENWW

2. Remove three screws (callout 1), and then remove the fuser power supply.

Figure 1-41 Remove the fuser power supply (2 of 2)

1

Removal and replacement procedures

47

ITB assembly

CAUTION: ESD sensitive.

NOTE: If you have not removed the image drum before servicing the product, remove it now. See

Imaging drum on page 13.

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Rear door. See

●

Rear-lower cover. See

●

Camera arm assembly. See

●

Top cover assembly. See

●

Left front cover and control panel assembly (through step 3). See

●

assembly on page 38.

Top-upper-left-front cover. See

●

Inner cover. See

●

Formatter and wireless PCA. See

●

Fuser cover on page 29.

Rear door assembly on page 26.

Inner cover on page 44.

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Cosmetic cover on page 28.

Rear-lower cover on page 27.

Camera arm assembly on page 30.

Top cover assembly on page 34.

Remove the top-upper-left front cover on page 41.

Formatter and wireless PCA on page 45.

Left front cover and control panel

48 Chapter 1 Removal and replacement ENWW

Remove the ITB assembly

1. Disconnect four connectors (callout 1).

Figure 1-42 Remove the ITB assembly (1 of 17)

2. Remove five screws (callout 1), and then separate the sheet-metal plate (callout 2) and fuser power

supply (callout 3) from the product.

1

CAUTION: The sheet-metal plate and fuser power supply assembly is still attached to the

product by a FFC connected to the engine controller assembly. Do not attempt to completely
remove the assembly.

Figure 1-43 Remove the ITB assembly (2 of 17)

1

2

3

ENWW

Removal and replacement procedures

49

3. Disconnect one FFC (Callout 1), and then remove the sheet-metal plate and fuser power supply

assembly.

Figure 1-44 Remove the ITB assembly (3 of 17)

1

4. Release one tab (callout 1), and then remove the cable cover (callout 2).

Figure 1-45 Remove the ITB assembly (4 of 17)

2

1

50 Chapter 1 Removal and replacement ENWW

5. Disconnect one connector (callout 1), release the wire harnesses (callout 2) from the guide (callout

3).

Figure 1-46 Remove the ITB assembly (5 of 17)

1

2

3

6. Release one tab (callout 1), and then remove the rear-door left-side arm (callout 2).

Figure 1-47 Remove the ITB assembly (6 of 17)

2

1

ENWW

Removal and replacement procedures

51

7. Release the hook end (callout 1) of the ITB fixing spring (callout 2).

Figure 1-48 Remove the ITB assembly (7 of 17)

1

2

8. Rotate the spring (callout 1) so that it faces out of the product.

Figure 1-49 Remove the ITB assembly (8 of 17)

1

52 Chapter 1 Removal and replacement ENWW

9. Rotate the ITB fixing part (callout 1) so that it faces out of the product.

Figure 1-50 Remove the ITB assembly (9 of 17)

1

Figure 1-51 Remove the ITB assembly (10 of 17)

1

ENWW

Removal and replacement procedures

53

10. Release two tabs (callout 1), and then remove the spring cover (callout 2).

Figure 1-52 Remove the ITB assembly (11 of 17)

1

2

11. Release one tab (callout 1), and the remove the rear-door right-side arm (callout 2).

Figure 1-53 Remove the ITB assembly (12 of 17)

1

2

54 Chapter 1 Removal and replacement ENWW

12. Release the hook end (callout 1) of the ITB fixing spring (callout 2), and then pull the wire harness

(callout 3) through the hole in the chassis.

Figure 1-54 Remove the ITB assembly (13 of 17)

3

1

2

13. Rotate the spring (callout 1) so that it faces out of the product.

Figure 1-55 Remove the ITB assembly (14 of 17)

1

ENWW

Removal and replacement procedures

55

14. Rotate the ITB fixing part (callout 1) so that it faces out of the product.

Figure 1-56 Remove the ITB assembly (15 of 17)

1

Figure 1-57 Remove the ITB assembly (16 of 17)

1

56 Chapter 1 Removal and replacement ENWW

15. Pull the ITB assembly (callout 1) straight out of the product.

CAUTION: Avoid touching the black plastic transfer belt. Skin oils on the belt might cause print-

quality problems.

Figure 1-58 Remove the ITB assembly (17 of 17)

1

ENWW

Removal and replacement procedures

57

Fuser delivery assembly

NOTE: For this product, the fuser and the paper delivery components are one assembly.

Position the fuser pressure roller for removal

You must rotate the pressure roller to the correct position before removing the fuser delivery assembly.

1. When the product is in the Ready state, press and hold the Auto-On/Auto-Off (power) button for

about seven seconds or until you hear subtle movement within the product and the Ready light
turns off.

2. Release the Auto-On/Auto-Off (power) button. The product power will be off and the fuser

pressure roller is in the removal position. Unplug the product before removing any components.

NOTE: If you have not removed the imaging drum before servicing the product, remove it now. See

Imaging drum on page 13.

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Rear door. See

●

Rear-lower cover. See

●

Camera arm assembly. See

●

Top cover assembly. See

●

Left front cover and control panel assembly (through step 3). See

●

assembly on page 38.

Top-upper-left-front cover. See

●

Inner cover. See

●

Formatter and wireless PCA. See

●

Fuser cover on page 29.

Rear door assembly on page 26.

Inner cover on page 44.

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Cosmetic cover on page 28.

Rear-lower cover on page 27.

Camera arm assembly on page 30.

Top cover assembly on page 34.

Remove the top-upper-left front cover on page 41.

Formatter and wireless PCA on page 45.

Left front cover and control panel

58 Chapter 1 Removal and replacement ENWW

Remove the fuser delivery assembly

CAUTION: ESD sensitive.

1. Disconnect four connectors.

Figure 1-59 Remove the fuser delivery assembly (1 of 6)

1

2. Remove five screws (callout 1), and then separate the sheet-metal plate (callout 2) and fuser power

supply (callout 3) from the product.

CAUTION: The sheet-metal plate and fuser power supply assembly is still attached to the

product by a FFC connected to the engine controller assembly. Do not attempt to completely
remove the assembly.

Figure 1-60 Remove the fuser delivery assembly (2 of 6)

1

2

3

ENWW

Removal and replacement procedures

59

3. Disconnect one FFC (Callout 1), and then remove the sheet-metal plate and fuser power supply

assembly.

Figure 1-61 Remove the fuser delivery assembly (3 of 6)

1

4. Release one tab (callout 1), and then remove the cable cover (callout 2).

Figure 1-62 Remove the fuser delivery assembly (4 of 6)

2

1

60 Chapter 1 Removal and replacement ENWW

5. Disconnect four connectors (callout 1), Release the wire harnesses (callout 2) from the guide

(callout 3).

Figure 1-63 Remove the fuser delivery assembly (5 of 6)

2

3

1

6. Remove five screws (callout 1), and then remove the fuser delivery assembly (callout 2).

Figure 1-64 Remove the fuser delivery assembly (6 of 6)

1

2

ENWW

Removal and replacement procedures

61

Reinstall the fuser delivery assembly

When reassembling the fuser delivery assembly, be sure the drive cam (callout 1) for fuser

▲

pressure release is positioned as shown below.

Figure 1-65 Reinstall the fuser delivery assembly (1 of 2)

1

Figure 1-66 Reinstall the fuser delivery assembly (2 of 2)

1

62 Chapter 1 Removal and replacement ENWW

Engine controller assembly

CAUTION: ESD sensitive.

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Rear door. See

●

Rear-lower cover. See

●

Camera arm assembly. See

●

Top cover assembly. See

●

Left front cover and control panel assembly (through step 3). See

●

assembly on page 38.

Top-upper-left-front cover. See

●

Inner cover. See

●

Formatter and wireless PCA. See

●

Remove the engine controller assembly

Fuser cover on page 29.

Rear door assembly on page 26.

Inner cover on page 44.

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Cosmetic cover on page 28.

Rear-lower cover on page 27.

Camera arm assembly on page 30.

Top cover assembly on page 34.

Left front cover and control panel

Remove the top-upper-left front cover on page 41.

Formatter and wireless PCA on page 45.

ENWW

1. Disconnect four connectors.

Figure 1-67 Remove the engine controller assembly (1 of 7)

1

Removal and replacement procedures

63

2. Remove five screws (callout 1), and then separate the sheet-metal plate (callout 2) and fuser power

supply (callout 3) from the product.

CAUTION: The sheet-metal plate and fuser power supply assembly is still attached to the

product by a FFC connected to the engine controller assembly. Do not attempt to completely
remove the assembly.

Figure 1-68 Remove the engine controller assembly (2 of 7)

1

2

3

3. Disconnect one FFC (Callout 1), and then remove the sheet-metal plate and fuser power supply

assembly.

Figure 1-69 Remove the engine controller assembly (3 of 7)

1

64 Chapter 1 Removal and replacement ENWW

4. Release one tab (callout 1) and remove the cable cover (callout 2).

Figure 1-70 Remove the engine controller assembly (4 of 7)

2

1

5. Release one tab (callout 1), and then remove the cover (callout 2).

Figure 1-71 Remove the engine controller assembly (5 of 7)

1

2

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Removal and replacement procedures

65

6. Disconnect eleven connectors (callout 1).

Figure 1-72 Remove the engine controller assembly (6 of 7)

1

7. Remove six screws (callout 1), release two tabs (callout 2), and then remove the engine controller

assembly.

Figure 1-73 Remove the engine controller assembly (7 of 7)

1

2

66 Chapter 1 Removal and replacement ENWW

Installing a replacement engine controller assembly

Release one tab (callout 1), remove the guide (callout 2) from the discarded engine controller assembly
(callout 3), and then install the guide on the replacement assembly.

Figure 1-74 Installing a replacement engine controller assembly

3

1

2

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Removal and replacement procedures

67

Low-voltage power supply assembly

CAUTION: ESD sensitive.

Before proceeding, remove the following components:

Right cover assembly. See

●

Left rear cover assembly. See

●

Cosmetic cover. See

●

Fuser cover. See

●

Rear door. See

●

Rear-lower cover. See

●

Camera arm assembly. See

●

Top cover assembly. See

●

Left front cover and control panel assembly (through step 3). See

●

assembly on page 38.

Top-upper-left-front cover. See

●

Inner cover. See

●

Formatter and wireless PCA. See

●

Remove the low-voltage power supply assembly

Fuser cover on page 29.

Rear door assembly on page 26.

Inner cover on page 44.

Right cover assembly on page 22.

Left rear cover assembly on page 23.

Cosmetic cover on page 28.

Rear-lower cover on page 27.

Camera arm assembly on page 30.

Top cover assembly on page 34.

Remove the top-upper-left front cover on page 41.

Formatter and wireless PCA on page 45.

Left front cover and control panel

1. Disconnect four connectors.

Figure 1-75 Remove the low-voltage power supply assembly (1 of 9)

1

68 Chapter 1 Removal and replacement ENWW

2. Remove five screws (callout 1), and then separate the sheet-metal plate (callout 2) and fuser power

supply (callout 3) from the product.

CAUTION: The sheet-metal plate and fuser power supply assembly is still attached to the

product by a FFC connected to the engine controller assembly. Do not attempt to completely
remove the assembly.

Figure 1-76 Remove the low-voltage power supply assembly (2 of 9)

1

2

3

3. Disconnect one FFC (Callout 1), and then remove the sheet-metal plate and fuser power supply

assembly.

Figure 1-77 Remove the low-voltage power supply assembly (3 of 9)

1

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Removal and replacement procedures

69

4. Release one cable from the cable guide (callout 1), and then remove two screws (callout 2).

Figure 1-78 Remove the low-voltage power supply assembly (4 of 9)

2

5. Remove the power receptacle (callout 1) and guide (callout 2) as an assembly.

Reinstallation tip Make sure that these parts are correctly assembled, before reinstalling the

receptacle and guide. See

Figure 1-79 Remove the low-voltage power supply assembly (5 of 9)

Reinstall the low-voltage power supply on page 73.

1

2

1

70 Chapter 1 Removal and replacement ENWW

6. Place the product rear-side up, and then remove four screws (callout 1).

Figure 1-80 Remove the low-voltage power supply assembly (6 of 9)

1

7. Remove three screws (callout 1), disconnect one connector (callout 2) and separate the low-

voltage power supply assembly (callout 3) from the product.

CAUTION: Do not attempt to completely remove the low-voltage power supply. The power

supply is still connected to the product by three internal connectors.

Figure 1-81 Remove the low voltage power supply assembly (7 of 9)

2

3

1

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Removal and replacement procedures

71

8. Release the wire harness (callout 1) from the guide (callout 2), and then pull the wire harness

through the hole in the chassis.

Figure 1-82 Remove the low-voltage power supply assembly (8 of 9)

2

1

9. Disconnect three connectors (callout 1) and remove the low-voltage power supply assembly

(callout 2).

Figure 1-83 Remove the low-voltage power supply assembly (9 of 9)

1

2

72 Chapter 1 Removal and replacement ENWW

Reinstall the low-voltage power supply

Make sure that the power receptacle (callout 1), guide (callout 2), and the ferrite (callout 3) are
correctly assembled before installing them.

Figure 1-84 Reinstall the low-voltage power supply

1 2 3

Installing a replacement low-voltage power supply

Release two tabs (callout 1), remove the cover (callout 2) from the discarded low-voltage power supply,
and then install the guide on the replacement assembly.

Figure 1-85 Installing a replacement low-voltage power supply

2

1

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Removal and replacement procedures

73

2 Solve problems

Solve problems checklist

●

Print product reports

●

Troubleshooting processes

●

Tools for troubleshooting

●

Clear jams

●

Paper feeds incorrectly or becomes jammed

●

Improve print quality

●

Improve copy quality

●

The product prints slowly

●

Solve USB connection problems

●

Solve wired network problems

●

Solve wireless network problems

●

Service mode functions

●

Product updates

●

ENWW 75

Solve problems checklist

Follow these steps when trying to solve a problem with the product.

Step 1: Make sure that the product is set up correctly

●

Step 2: Check the cabling or wireless connection

●

Step 3: Check the control panel for error messages

●

Step 4: Check the paper

●

Step 5: Check the software

●

Step 6: Test print functionality

●

Step 7: Test copy functionality

●

Step 8: Check the supplies

●

Step 9: Try sending a print job from a computer

●

Step 1: Make sure that the product is set up correctly

1. Press the power button to turn on the product or to deactivate the Auto-Off mode.

2. Check the power-cable connections.

3. Make sure that the line voltage is correct for the product power configuration. (See the label that is

inside the product front cover for voltage requirements.) If you are using a power strip and its
voltage is not within specifications, plug the product directly into the wall. If it is already plugged
into the wall, try a different outlet.

4. If none of these measures restores power, contact HP Customer Care.

Step 2: Check the cabling or wireless connection

1. Check the cable connection between the product and the computer. Make sure that the connection

is secure.

2. Make sure that the cable itself is not faulty by using a different cable, if possible.

3. If the product is connected to a network, check the following items:

Check the light next to the network connection on the product. If the network is active, the

●

light is green.

Make sure that you are using a network cable and not a phone cord to connect to the

●

network.

76 Chapter 2 Solve problems ENWW

Make sure the network router, hub, or switch is turned on and that it is working correctly.

●

If your computer or the product is connected to a wireless network, low signal quality or

●

interference might be delaying print jobs.

4. If you are using a personal firewall system on the computer, it might be blocking communication

with the product. Try temporarily disabling the firewall to see if it is the source of the problem.

Step 3: Check the control panel for error messages

The control panel should indicate ready status. If an error message appears, resolve the error.

Step 4: Check the paper

1. Make sure that the paper that you are using meets specifications.

2. Make sure that the paper is loaded correctly in the input tray.

Step 5: Check the software

1. Make sure that the product software is installed correctly.

2. Verify that you have installed the printer driver for this product. Check the program to make sure

that you are using the printer driver for this product.

Step 6: Test print functionality

1. Print a configuration page.

2. If the page does not print, verify that the input tray contains paper.

3. If the page jams in the product, clear the jam.

Step 7: Test copy functionality

1. Place the configuration page onto the capture stage and make a copy.

2. If the print quality on the copied pages is not acceptable, clean the cover over the camera lens

with a soft cloth or sponge that has been moistened with nonabrasive glass cleaner.

CAUTION: Do not use abrasives, acetone, benzene, ammonia, ethyl alcohol, or carbon

tetrachloride on any part of the product; these can damage the product. Do not place liquids
directly on the capture stage. They might seep and damage the product.

Step 8: Check the supplies

Print a supplies status page and check remaining life of the print cartridges and imaging drum.

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77

Step 9: Try sending a print job from a computer

1. Try printing the job from another computer that has the product software installed.

2. Check the USB or network cable connection. Direct the product to the correct port, or reinstall the

software, selecting the connection type that you are using.

3. If the print quality is unacceptable, verify that the print settings are correct for the media that you

are using.

78 Chapter 2 Solve problems ENWW

Print product reports

From the Reports menu, you can print several informative pages about the product.

1.

From the Home screen, touch the Setup

button.

2. Touch the Reports button.

3. Touch the name of the report that you want to print.

Menu item Description

Demo Page Prints a page that demonstrates print quality

Menu Structure Prints a map of the control panel-menu layout. The active settings for each menu are

listed.

Config Report Prints a list of all the product settings. Includes network information when the

product is connected to a network.

Supplies Status Prints the status for each print cartridge, including the following information:

Estimated percentage of cartridge life remaining

●

Approximate pages remaining

●

Part numbers for HP print cartridges

●

Number of pages printed

●

Information about ordering new HP print cartridges and recycling used HP

●

print cartridges

Network Summary Prints a list of all product network settings

Usage Page Prints a page that lists PCL pages, PCL 6 pages, PS pages, pages that were jammed

or mispicked in the product, monochrome (black and white) or color pages; and
reports the page count

PCL Font List Prints a list of all the PCL fonts that are installed

PS Font List Prints a list of all the PostScript (PS) fonts that are installed

PCL6 Font List Prints a list of all the PCL6 fonts that are installed

Color Usage Log Prints a report that shows the user name, application name, and color usage

information on a job-by-job basis

Service Page Prints the service report

Diagnostics Page Prints the calibration and color diagnostics pages

Print Quality Page Prints a page that helps solve problems with print quality

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Print product reports

79

Troubleshooting processes

Determine the problem source

The following table includes basic questions to ask the customer to quickly help define the problem or
problems.

General topic Questions

Environment

Paper

Input tray

Is the product installed on a solid, level surface (± 1°)?

●

Is the power-supply voltage within ± 10 volts of the specified power source?

●

Is the power-supply plug inserted in the product and the outlet?

●

Is the operating environment within the specified parameters?

●

Is the product exposed to ammonia gas, such as that produced by diazo

●

copiers or office cleaning materials?

NOTE: Diazo copiers produce ammonia gas as part of the coping

processes. Ammonia gas (from cleaning supplies or a diazo copier) can have
an adverse affect on some product components (for example, the imaging
drum).

Is the product exposed to direct sunlight?

●

Does the customer use only supported paper?

●

Is the paper in good condition (no curls, folds, or distortion)?

●

Is the paper stored correctly and within environmental limits?

●

Is the amount of paper in the tray within specifications?

●

Is the paper correctly placed in the tray?

●

Are the paper guides aligned with the stack?

●

Supplies

Transfer roller and fuser

Covers

Are the print cartridges and the imaging-drum installed correctly and firmly

●

seated?

Has the sealing tape been removed from each print cartridge?

●

Are the print cartridges and imaging drum within their estimated life? (Check

●

the supplies status page.)

Are the transfer roller and fuser installed correctly?

●

Are the top, front and rear doors firmly closed?

●

80 Chapter 2 Solve problems ENWW

General topic Questions

Condensation

Miscellaneous

Power subsystem

Power-on checks

Turn on the power. If the control-panel LEDs do not illuminate, perform the power-on checks to find the
cause of the problem.

1. Verify that the product is plugged into an active electrical outlet that delivers the correct voltage.

2. Make sure that the product makes the expected start up sounds.

Does condensation occur following a temperature change (particularly in

●

winter following cold storage)? If so, wipe affected parts dry or leave the
product on for 90 to 120 minutes.

Was a cartridge opened soon after being moved from a cold to a warm

●

room? If so, allow the cartridge to sit at room temperature for 1 to 2 hours.

Check for and remove any non-HP components (for example, a print cartridge

●

or imaging drum) from the product.

Remove the product from the network and make sure that the failure is with the

●

product before beginning troubleshooting.

NOTE: The overcurrent/overvoltage protection circuit in the low-voltage power supply unit might

be functioning. Turn the product off, unplug the power cord, and turn the product on. If the
product does not function, the fuse melts, or the power supply is malfunctioning, replace the
engine controller unit. See

Engine controller assembly on page 63.

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Troubleshooting processes

81

Tools for troubleshooting

Component diagnostics

Engine diagnostics

Printing an engine test page helps determine if the product engine is functioning. Use the following
procedure to print a test page to make sure that the product engine is functioning.

Engine test

NOTE: The product does not have an engine test button.

1. Make sure that at least one sheet of paper is loaded in the input tray.

2. With the product off, open the print-cartridge door and the rear door.

3. Turn the power on, and close both doors within ten seconds.

4. An engine test page (a page containing multiple horizontal lines) prints.

82 Chapter 2 Solve problems ENWW

Diagrams

Locations of formatter connectors

Figure 2-1 Locations of formatter connectors

1 2 3

7

4

5

6

Item Connector Description

1 J7 Camera assembly

2 J11 Camera assembly

3 J8 Control panel

4 J3 Engine controller assembly

5 J14 Low-voltage power supply

6 J18 Engine controller assembly

7 J2 Control-panel display

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Tools for troubleshooting

83

Locations of major components

Cross section view

Figure 2-2 Cross section view

Item Description Item Description

1 Pressure roller 10 T1 pad

2 Delivery roller 11 ITB

3 Fuser film assembly 12 Pickup roller

4 Density ITB_TOP sensor 13 Separation pad

5 Print cartridge 14 Feed roller

6 Imaging drum 15 T2 roller

7 Imaging-drum 16 ITB drive roller

8 Laser scanner assembly 17 ITB cleaning brush

9 Input tray 18 ITB cleaning roller

84 Chapter 2 Solve problems ENWW

External covers and doors (front view)

Figure 2-3 External covers and doors (front view)

3

2

1

7

6

5

1 Top-upper-left front cover

2 Top cover assembly

3 Cosmetic cover

4 Top-upper-right front cover

4

5 Left front cover

6IOT cover

7 Left cover assembly

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Tools for troubleshooting

85

External covers and doors (rear view)

Figure 2-4 External covers and doors (rear view)

1

2

4

1 Fuser cover

2Rear door

3 Lower rear door

4Right cover assembly

3

86 Chapter 2 Solve problems ENWW

General timing chart

Figure 2-5 General timing diagram

PRINTINTR LSTR

ENWW

Print command

STBY STBY

Operation

Fuser motor

TOP sensor3

4 Delivery sensor

2 Pickup motor

Timing chart two consecutive prints on LTR paper (Full-color 1/1 speed mode)

1 Cassette pickup solenoid

5

Main motor7

6 Scanner motor

9 ITB_TOP signal

8 TOP signal

12 Developing bias

11 Carousel motor

10 Primary charging bias

T1 bias

T2 roller ITB cleaner solenoid

13

15 T2 bias

14

Tools for troubleshooting

87