HP LaserJet Pro 100 color MFP M175 Service Manual
LASERJET PRO 100 COLOR MFP M175
Service Manual
HP LaserJet Pro 100 color MFP M175
Service Manual
Copyright and License
Trademark Credits
© 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: CE865-90968
Edition 1, 4/2011
Microsoft®, Windows®, Windows® XP,
and Windows Vista® are U.S. registered
trademarks of Microsoft Corporation.
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 ........................................................................................ 7
Print cartridges .......................................................................................................... 7
Imaging drum ........................................................................................................... 9
Input tray ............................................................................................................... 11
Secondary transfer roller .......................................................................................... 12
Separation pad assembly ......................................................................................... 13
Pickup roller ........................................................................................................... 14
Remove the pickup roller assembly ............................................................. 15
Covers and document feeder .................................................................................... 16
Right cover .............................................................................................. 16
Left cover ................................................................................................ 17
Document feeder ...................................................................................... 18
Remove the document feeder ...................................................... 18
Document feeder hinges ............................................................................ 21
Remove the document feeder hinges ............................................ 21
Top door, rear-top cover, and delivery cover ............................................... 22
Remove the top door, rear-top cover, and delivery cover ................ 22
Reinstall the top door, rear-top cover, and delivery cover ............... 25
Rear door assembly .................................................................................. 27
Remove the rear door assembly .................................................. 27
Rear-lower cover ...................................................................................... 28
ENWW v
Remove the rear-lower cover ....................................................... 28
Control panel .......................................................................................... 29
Remove the control panel ........................................................... 29
Left-front cover ......................................................................................... 31
Remove the left-front cover .......................................................... 31
Front door ............................................................................................... 33
Remove the front door ................................................................ 33
Inner cover .............................................................................................. 35
Remove the inner cover .............................................................. 35
Main assemblies ..................................................................................................... 38
Formatter PCA (base model) ...................................................................... 38
Remove the formatter PCA (base model) ....................................... 38
Formatter and wireless PCA (plus model) ..................................................... 40
Remove the formatter and wireless PCA (plus model) ..................... 40
Fuser power supply .................................................................................. 42
Remove the fuser power supply ................................................... 42
ITB assembly ............................................................................................ 43
Remove the ITB assembly ............................................................ 43
Fuser delivery assembly ............................................................................ 53
Remove the fuser delivery assembly ............................................. 54
Engine controller assembly ........................................................................ 58
Remove the engine controller assembly ........................................ 58
Low-voltage power supply assembly ........................................................... 63
Remove the low-voltage power supply assembly ............................ 63
Document feeder components ................................................................................... 69
Document feeder input tray ........................................................................ 69
Document feeder cover ............................................................................. 70
Document feeder core ............................................................................... 72
Remove the document feeder core ............................................... 72
Post scan pinch rollers .............................................................................. 74
Remove the post scan pinch rollers .............................................. 74
Document feeder base assembly ................................................................ 75
Remove the document feeder base assembly ................................ 75
2 Solve problems ............................................................................................................... 77
Solve problems checklist ......................................................................................................... 78
Step 1: Test print functionality ................................................................................... 78
Step 2: Test copy functionality .................................................................................. 78
Menu map ............................................................................................................................ 79
Troubleshooting processes ....................................................................................................... 80
Determine the problem source ................................................................................... 80
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Power subsystem ..................................................................................................... 81
Power-on checks ...................................................................................... 81
Tools for troubleshooting ......................................................................................................... 82
Component diagnostics ............................................................................................ 82
Component tests ....................................................................................... 82
Control-panel tests ..................................................................... 82
Diagrams ............................................................................................................... 83
Locations of connectors ............................................................................. 83
Locations of major components .................................................................. 84
General timing chart ................................................................................. 86
General circuit diagram ............................................................................ 87
Internal print-quality test pages .................................................................................. 88
Print a Diagnostics Page ........................................................................... 88
Interpret the Print Quality Page ................................................................... 89
Print-quality troubleshooting tools .............................................................................. 90
Repetitive image defects ruler .................................................................... 90
Calibrate the product ................................................................................ 90
Control panel menus ................................................................................................ 91
Setup menu ............................................................................................. 91
Reports menu ............................................................................ 91
System Setup menu .................................................................... 91
Service menu ............................................................................ 94
Network Setup menu (network models only) ................................. 94
Function specific menus ............................................................................. 95
Copy Menu .............................................................................. 95
Service mode functions ........................................................................................................... 97
Service menu/Secondary service menu ...................................................................... 97
Service menu ........................................................................................... 97
Secondary service menu ........................................................................... 97
Open the secondary service menu ............................................... 97
Secondary service menu structure ................................................ 98
Product resets ......................................................................................................... 99
Restore factory settings .............................................................................. 99
NVRAM initialization ................................................................................ 99
Product updates ..................................................................................................................... 99
3 Parts and diagrams ...................................................................................................... 101
Order parts by authorized service providers ............................................................................ 102
Order replacement parts ........................................................................................ 102
Related documentation and software ....................................................................... 102
Supplies part numbers ........................................................................................... 102
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Service parts ........................................................................................................ 103
Whole-unit replacement part numbers ...................................................................... 103
How to use the parts lists and diagrams .................................................................................. 104
Assembly locations ............................................................................................................... 105
Base product (no optional trays or accessories) ......................................................... 105
Covers, panels, and doors .................................................................................................... 106
Internal assembly ................................................................................................................. 108
Internal assembly .................................................................................................. 108
PCAs .................................................................................................................................. 110
Scanner and document feeder (ADF) main assemblies .............................................................. 112
Document feeder internal components .................................................................................... 114
Alphabetical parts list ........................................................................................................... 116
Numerical parts list .............................................................................................................. 119
Appendix A Service and support ..................................................................................... 123
Hewlett-Packard limited warranty statement ............................................................................. 124
HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement .................. 126
HP's LaserJet imaging drum limited warranty statement for replacement imaging drums ................ 127
Data stored on the print cartridge and imaging drum ............................................................... 128
End User License Agreement .................................................................................................. 129
OpenSSL ............................................................................................................................. 131
Customer self-repair warranty service ..................................................................................... 132
Customer support ................................................................................................................. 132
Repack the product .............................................................................................................. 133
Appendix B Specifications ................................................................................................ 135
Physical specifications .......................................................................................................... 136
Power consumption, electrical specifications, and acoustic emissions .......................................... 136
Environmental specifications .................................................................................................. 136
Appendix C Regulatory information ................................................................................. 137
FCC regulations ................................................................................................................... 138
Declaration of conformity (base models) ................................................................................. 139
Declaration of conformity (wireless models) ............................................................................. 141
Certificate of Volatility .......................................................................................................... 143
Safety statements ................................................................................................................. 144
Laser safety .......................................................................................................... 144
Canadian DOC regulations .................................................................................... 144
VCCI statement (Japan) .......................................................................................... 144
Power cord instructions .......................................................................................... 144
viii ENWW
Power cord statement (Japan) ................................................................................. 144
EMC statement (Korea) .......................................................................................... 145
Laser statement for Finland ..................................................................................... 145
GS statement (Germany) ........................................................................................ 145
Substances Table (China) ....................................................................................... 146
Restriction on Hazardous Substances statement (Turkey) ............................................. 146
Additional statements for wireless products .............................................................................. 147
FCC compliance statement—United States ................................................................ 147
Australia statement ................................................................................................ 147
Brazil ANATEL statement ........................................................................................ 147
Canadian statements ............................................................................................. 147
European Union regulatory notice ........................................................................... 147
Notice for use in France ......................................................................................... 148
Notice for use in Russia ......................................................................................... 148
Korean statement .................................................................................................. 148
Taiwan statement .................................................................................................. 148
Index ............................................................................................................................... 149
ENWW ix
List of tables
Table 2-1 External covers and doors (base) ............................................................................................ 85
Table 2-2 Service menu ..................................................................................................................... 97
Table 2-3 Secondary service menu ........................................................................................................ 98
Table 3-1 Order parts, accessories, and supplies .................................................................................. 102
Table 3-2 Related documentation and software .................................................................................... 102
Table 3-3 Supplies part numbers ......................................................................................................... 102
Table 3-4 Whole-unit replacement part numbers ................................................................................... 103
Table 3-5 Base product ..................................................................................................................... 105
Table 3-6 Covers, panels, and doors ................................................................................................... 107
Table 3-7 Internal assembly) ............................................................................................................... 109
Table 3-8 PCAs ................................................................................................................................ 111
Table 3-9 Scanner and document feeder main assemblies ..................................................................... 113
Table 3-10 Document feeder assembly parts ........................................................................................ 115
Table 3-11 Alphabetical parts list ....................................................................................................... 116
Table 3-12 Numerical parts list ........................................................................................................... 119
Table B-1 Physical specifications
Table B-2 Environmental specifications ................................................................................................ 136
1
........................................................................................................ 136
ENWW xi
List of figures
Figure 1-1 Phillips and Pozidriv screwdriver comparison ............................................................................ 3
Figure 1-2 Parts removal order (base) ...................................................................................................... 5
Figure 1-3 Parts removal order (document feeder) ..................................................................................... 6
Figure 1-4 Remove the tray .................................................................................................................. 11
Figure 1-5 Remove the secondary transfer roller ...................................................................................... 12
Figure 1-6 Remove the separation pad assembly (1 of 1) ......................................................................... 13
Figure 1-7 Remove the pickup roller assembly (1 of 2) ............................................................................. 15
Figure 1-8 Remove the pickup roller assembly (2 of 2) ............................................................................. 15
Figure 1-9 Remove the right cover (1 of 2) ............................................................................................. 16
Figure 1-10 Remove the right cover (2 of 2) ........................................................................................... 16
Figure 1-11 Remove the left cover (1 of 2) ............................................................................................. 17
Figure 1-12 Remove the left cover (2 of 2) ............................................................................................. 17
Figure 1-13 Remove the document feeder (1 of 4) ................................................................................... 18
Figure 1-14 Remove the document feeder (2 of 4) ................................................................................... 19
Figure 1-15 Remove the document feeder (3 of 4) ................................................................................... 19
Figure 1-16 Remove the document feeder (4 of 4) ................................................................................... 20
Figure 1-17 Remove the scanner hinges (1 of 2) ..................................................................................... 21
Figure 1-18 Remove the scanner hinges (2 of 2) ..................................................................................... 21
Figure 1-19 Remove the top door, rear-top cover, and delivery cover (1 of 6) ............................................ 22
Figure 1-20 Remove the top door, rear-top cover, and delivery cover (2 of 6) ............................................ 23
Figure 1-21 Remove the top door, rear-top cover, and delivery cover (3 of 6) ............................................ 23
Figure 1-22 Remove the top door, rear-top cover, and delivery cover (4 of 6) ............................................ 24
Figure 1-23 Remove the top door, rear-top cover, and delivery cover (5 of 6) ............................................ 24
Figure 1-24 Remove the top door, rear-top cover, and delivery cover (6 of 6) ............................................ 25
Figure 1-25 Reinstall the top door, rear-top cover, and delivery cover (1 of 2) ............................................ 25
Figure 1-26 Reinstall the top door, rear-top cover, and delivery cover (1 of 2) ............................................ 26
Figure 1-27 Remove the rear door assembly (1 of 2) ............................................................................... 27
Figure 1-28 Remove the rear door assembly (2 of 2) ............................................................................... 27
Figure 1-29 Remove the rear-lower cover ............................................................................................... 28
Figure 1-30 Remove the control panel (1 of 3) ........................................................................................ 29
Figure 1-31 Remove the control panel (2 of 3) ......
Figure 1-32 Remove the control panel (3 of 3) ........................................................................................ 30
.................................................................................. 30
ENWW xiii
Figure 1-33 Remove the left-front cover (1 of 2) ...................................................................................... 31
Figure 1-34 Remove the left-front cover (2 of 2) ...................................................................................... 32
Figure 1-35 Remove the front door (1 of 2) ............................................................................................ 33
Figure 1-36 Remove the front door (2 of 3) ............................................................................................ 34
Figure 1-37 Remove the inner cover (1 of 4) .......................................................................................... 35
Figure 1-38 Remove the inner cover (2 of 4) .......................................................................................... 36
Figure 1-39 Remove the inner cover (3 of 4) .......................................................................................... 36
Figure 1-40 Remove the inner cover (4 of 4) .......................................................................................... 37
Figure 1-41 Remove the formatter PCA (base model; 1 of 2) .................................................................... 38
Figure 1-42 Remove the formatter PCA (base model; 2 of 2) .................................................................... 39
Figure 1-43 Remove the formatter and wireless PCA (plus model; 1 of 3) ................................................... 40
Figure 1-44 Remove the formatter and wireless PCA (plus mode; 2 of 3) ................................................... 40
Figure 1-45 Remove the formatter and wireless PCA (plus mode; 3 of 3) ................................................... 41
Figure 1-46 Remove the fuser power supply (1 of 2) ............................................................................... 42
Figure 1-47 Remove the fuser power supply (2 of 2) ............................................................................... 42
Figure 1-48 Remove the ITB assembly (1 of 17) ...................................................................................... 43
Figure 1-49 Remove the ITB assembly (2 of 17) ...................................................................................... 44
Figure 1-50 Remove the ITB assembly (3 of 17) ...................................................................................... 44
Figure 1-51 Remove the ITB assembly (4 of 17) ...................................................................................... 45
Figure 1-52 Remove the ITB assembly (5 of 17) ...................................................................................... 45
Figure 1-53 Remove the ITB assembly (6 of 17) ...................................................................................... 46
Figure 1-54 Remove the ITB assembly (7 of 17) ...................................................................................... 46
Figure 1-55 Remove the ITB assembly (8 of 17) ...................................................................................... 47
Figure 1-56 Remove the ITB assembly (9 of 17) ...................................................................................... 48
Figure 1-57 Remove the ITB assembly (10 of 17) .................................................................................... 48
Figure 1-58 Remove the ITB assembly (11 of 17) .................................................................................... 49
Figure 1-59 Remove the ITB assembly (12 of 17) .................................................................................... 49
Figure 1-60 Remove the ITB assembly (13 of 17) .................................................................................... 50
Figure 1-61 Remove the ITB assembly (14 of 17) .................................................................................... 50
Figure 1-62 Remove the ITB assembly (15 of 17) .................................................................................... 51
Figure 1-63 Remove the ITB assembly (16 of 17) .................................................................................... 51
Figure 1-64 Remove the ITB assembly (17 of 17) .................................................................................... 52
Figure 1-65 Remove the fuser delivery assembly (1 of 6) .......................................................................... 54
Figure 1-66 Remove the fuse
Figure 1-67 Remove the fuser delivery assembly (3 of 6) .......................................................................... 55
Figure 1-68 Remove the fuser delivery assembly (4 of 6) .......................................................................... 55
Figure 1-69 Remove the fuser delivery assembly (5 of 6) .......................................................................... 56
Figure 1-70 Remove the fuser delivery assembly (6 of 6) .......................................................................... 56
Figure 1-71 Reinstall the fuser delivery assembly (1 of 2) ......................................................................... 57
Figure 1-72 Reinstall the fuser delivery assembly (2 of 2) ......................................................................... 57
Figure 1-73 Remove the engine controller assembly (1 of 7) ..................................................................... 58
r delivery assembly (2 of 6) .......................................................................... 54
xiv ENWW
Figure 1-74 Remove the engine controller assembly (2 of 7) ..................................................................... 59
Figure 1-75 Remove the engine controller assembly (3 of 7) ..................................................................... 59
Figure 1-76 Remove the engine controller assembly (4 of 7) ..................................................................... 60
Figure 1-77 Remove the engine controller assembly (5 of 7) ..................................................................... 60
Figure 1-78 Remove the engine controller assembly (6 of 7) ..................................................................... 61
Figure 1-79 Remove the engine controller assembly (7 of 7) ..................................................................... 61
Figure 1-80 Installing a replacement engine controller assembly ............................................................... 62
Figure 1-81 Remove the low-voltage power supply assembly (1 of 9) ........................................................ 63
Figure 1-82 Remove the low-voltage power supply assembly (2 of 9) ........................................................ 64
Figure 1-83 Remove the low-voltage power supply assembly (3 of 9) ........................................................ 64
Figure 1-84 Remove the low-voltage power supply assembly (4 of 9) ........................................................ 65
Figure 1-85 Remove the low-voltage power supply assembly (5 of 9) ........................................................ 65
Figure 1-86 Remove the low-voltage power supply assembly (6 of 9) ........................................................ 66
Figure 1-87 Remove the low voltage power supply assembly (7 of 9) ........................................................ 66
Figure 1-88 Remove the low-voltage power supply assembly (8 of 9) ........................................................ 67
Figure 1-89 Remove the low-voltage power supply assembly (9 of 9) ........................................................ 67
Figure 1-90 Reinstall the low-voltage power supply ................................................................................. 68
Figure 1-91 Installing a replacement low-voltage power supply ................................................................ 68
Figure 1-92 Remove the document feeder input tray (1 of 2) .................................................................... 69
Figure 1-93 Remove the document feeder input tray (2 of 2) .................................................................... 69
Figure 1-94 Remove the document feeder cover (1 of 3) .......................................................................... 70
Figure 1-95 Remove the document feeder cover (2 of 3) .......................................................................... 70
Figure 1-96 Remove the document feeder cover (3 of 3) .......................................................................... 71
Figure 1-97 Remove the document feeder core (1 of 4) ........................................................................... 72
Figure 1-98 Remove the document feeder core (2 of 4) ........................................................................... 72
Figure 1-99 Remove the document feeder core (3 of 4) ........................................................................... 73
Figure 1-100 Remove the document feeder core (4 of 4) ......................................................................... 73
Figure 1-101 Remove the post scan pinch rollers .................................................................................... 74
Figure 1-102 Remove the document feeder base assembly (1 of 3) ........................................................... 75
Figure 1-103 Remove the document feeder base assembly (2 of 3) ........................................................... 76
Figure 1-104 Remove the document feeder base assembly (3 of 3) ........................................................... 76
Figure 2-
Figure 2-2 Cross section view ............................................................................................................... 84
Figure 2-3 External covers and doors (base) ........................................................................................... 85
Figure 2-4 General timing diagram ....................................................................................................... 86
Figure 2-5 General circuit diagram ....................................................................................................... 87
Figure 2-6 Diagnostics Page ................................................................................................................. 88
Figure 3-1 Base product (no optional trays or accessories) ..................................................................... 105
Figure 3-2 Covers, panels, and doors ................................................................................................. 106
Figure 3-3 Internal assembly ............................................................................................................... 108
Figure 3-4 PCAs ............................................................................................................................... 110
1 Locations of connectors ........................................................................................................ 83
ENWW xv
Figure 3-5 Scanner and document feeder main assemblies .................................................................... 112
Figure 3-6 Document feeder assembly parts ......................................................................................... 114
xvi ENWW
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
●
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 9
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 7 and Imaging
Input tray on page 11.
4. Verify that the expected startup sounds occur.
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. Use the document feeder to make a copy.
8. Clean the outside of the product with a damp cloth.
4 Chapter 1 Removal and replacement ENWW
Parts removal order
Figure 1-2 Parts removal order (base)
Print cartridges
Imaging drum
Input tray
Secondary
transfer roller
Separation pad
Pickup roller
Right cover assembly
Left cover assembly
Document feeder
Document feeder
hinges
Separation
pad
Left cover
Left cover
Right cover
Document
feeder
Left cover
Top door, rear cover,
and delivery cover
Rear door assembly
Rear-lower cover
Control Panel
Left-front cover
Front door
Inner cover
Formatter PCA
(base model)
Formatter and
wireless PCA
(plus model)
Fuser power supply
ITB
Fuser delivery
assembly
Engine controller
assembly
Low-voltage power
supply assembly
Right cover
Right cover
Right cover
Right cover
Right cover
Right cover
Right cover
Left cover
Left cover
Left cover
Right cover
Right cover
Right cover
Right cover
Left cover
Left cover
Left cover
Left cover
Left cover
Left cover
Left cover
Left cover
Left cover
Left cover
Document
feeder
Rear door
Document
feeder
Document
feeder
Document
feeder
Document
feeder
Document
feeder
Document
feeder
Document
feeder
Document
feeder
Document
feeder hinges
Document
feeder hinges
Document
feeder hinges
Document
feeder hinges
Document
feeder hinges
Document
feederhinges
Document
feeder hinges
Document
feeder hinges
Document
feeder hinges
Top door,
rear cover,
and delivery cover
Top door,
rear cover,
and delivery cover
Top door,
rear cover,
and delivery cover
Top door,
rear cover,
and delivery cover
Top door,
rear cover,
livery cover
and de
Top door,
rear cover,
and delivery cover
Top door,
rear cover,
and delivery cover
Top door,
rear cover,
and delivery cover
Control
Pan el
Control
Pan el
Control
Pan el
Rear door
assembly
Rear door
assembly
Control
Pan el
Rear door
assembly
Left-front
cover
Left-front
cover
Rear-lower
cover
Rear-lower
cover
Left-front
cover
Rear-lower
cover
Formatter
PCA
Formatter
PCA
Inner
cover
Control
Pan el
Formatter
PCA
Left-front
cover
Inner cover
Formatter
PCA
ENWW
Service approach
5
Figure 1-3 Parts removal order (document feeder)
Document feeder input tray
Document feeder cover
Document core
Post scan pinch rollers
Document feeder input tray
Document feeder cover
Document core
Document feeder base assembly
Document feeder input tray
Document feeder cover
6 Chapter 1 Removal and replacement ENWW
Removal and replacement procedures
Print cartridges
When a print cartridge approaches the estimated end of its useful life, you can continue printing with
the current print cartridge until it no longer yields acceptable print quality.
Once an HP print cartridge has reached “very low’, the HP Premium Protection Warranty on that
supply has ended. All print defects or print cartridge failures incurred when an HP supply is used in
continue at very low mode will not be considered to be defects in materials or workmanship in the
supply under the HP Print Cartridge Warranty Statement.
1. Some error messages or status messages cause
the product to rotate the print cartridge
carousel to the affected cartridge
automatically. If the print cartridge that needs
to be replaced is not in the correct position,
press the Cartridge
cartridge carousel to the cartridge color that
you want to replace.
NOTE: All doors must be closed when
pressing the Cartridge
imaging drum must be installed for the
Cartridge
NOTE: Wait until the Rotating message
and the rotation sounds stop before opening
the print cartridge door.
button to work.
button to rotate the print
button. Also, the
ENWW
Removal and replacement procedures
7
2. Open the print cartridge door.
3. Grasp the old print cartridge by the center
handle and remove it.
Close the doors, and then press the Cartridge
button to rotate the print cartridge carousel
to the next cartridge. Repeat to remove all
cartridges.
NOTE: Make sure that you store the
removed print cartridges away from strong
light. HP recommends that you cover the print
cartridges while servicing the product.
8 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. Open the print cartridge door.
2. Open the front cover.
ENWW
Removal and replacement procedures
9
3. Lift the two levers that hold the imaging drum.
4. Remove the old imaging drum.
NOTE: Make sure that you store the
removed imaging drum away from strong
light. HP recommends that you cover the
imaging drum while servicing the product.
10 Chapter 1 Removal and replacement ENWW
Input tray
Pull the tray away from the printer to remove.
Figure 1-4 Remove the tray
ENWW
Removal and replacement procedures
11
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. Release two clips (callout 1), and then remove the roller from the product.
Figure 1-5 Remove the secondary transfer roller
1
12 Chapter 1 Removal and replacement ENWW
Separation pad assembly
1. Turn the product face up.
WARNING! The ADF portion of the document feeder is not captive and can open when the
product is placed face up. Make sure that you support the ADF when handling the product.
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
13
Pickup roller
Before proceeding, remove the following components:
Separation pad assembly. See
●
Right cover assembly. See
●
Left cover assembly. See
●
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. When the product is in the Ready state, press and hold the Auto-On/Auto-Off (power) button for
about seven seconds or until the Ready light turns off.
TIP: Optionally, unplug the power cord, and then plug the cord back in.
2. 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.
3. Press and release the Auto-On/Auto-Off (power) button and within two seconds press and hold
down the cyan cartridge button. Hold the cyan button down for about five seconds, or until the
initialization process begins.
NOTE: Immediately after the Auto-On/Auto-Off (power) button is pressed, all of the control
panel lights illuminate briefly (for about two seconds). You must press the cyan cartridge button
while the lights are illuminated.
Separation pad assembly on page 13.
Right cover on page 16.
Left cover on page 17.
4. When the product finishes initializing, the roller rotates into the removal position. 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.
14 Chapter 1 Removal and replacement ENWW
Remove the pickup roller assembly
1. Remove four screws (callout 1) and the lower stay part (callout 2).
Figure 1-7 Remove the pickup roller assembly (1 of 2)
2
1
2. Release two tabs (callout 1) and remove the pickup roller (callout 2).
Figure 1-8 Remove the pickup roller assembly (2 of 2)
1
2
ENWW
Removal and replacement procedures
15
Covers and document feeder
Right cover
1. Open the document feeder.
2. Remove one screw (callout 1), and then starting at the rear vertical edge, release six tabs
(callout 2) and remove the right cover.
NOTE: Before proceeding, take note of the locations of the tabs (callout 1) on the back side of
the cover. See
Figure 1-9 Remove the right cover (1 of 2)
Figure 1-10 Remove the right cover (2 of 2) on page 16.
2
1
Figure 1-10 Remove the right cover (2 of 2)
1
16 Chapter 1 Removal and replacement ENWW
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