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: CE861-90939
Edition 1, 9/2010
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.
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.
ENWWiii
Table of contents
1 Removal and replacement ............................................................................................................................. 1
3 Parts and diagrams ..................................................................................................................................... 157
Order parts by authorized service providers .................................................................................... 158
Order replacement parts .................................................................................................. 158
Related documentation and software .............................................................................. 158
Supplies part numbers ..................................................................................................... 158
Service parts .................................................................................................................... 158
Customer self repair parts ............................................................................................... 159
Whole-unit replacement part numbers ............................................................................. 159
How to use the parts lists and diagrams .......................................................................................... 160
Index ................................................................................................................................................................. 215
Table 3-1 Order parts, accessories, and supplies .......................................................................................... 158
Table 3-2 Related documentation and software ............................................................................................ 158
Table 3-3 Supplies part numbers ................................................................................................................... 158
Table 3-4 Service parts .................................................................................................................................. 158
Table 3-5 Customer replaceable units (CRU) kit part numbers ..................................................................... 159
Table 3-6 Whole-unit replacement part numbers ........................................................................................... 159
Table 3-7 Base product .................................................................................................................................. 161
Table 3-8 Covers, panels, and doors ............................................................................................................. 163
Table 3-9 Internal assemblies (1 of 4) ............................................................................................................ 165
Table 3-10 Internal assemblies (2 of 4) .......................................................................................................... 167
Table 3-11 Internal assemblies (3 of 4) .......................................................................................................... 169
Table 3-12 Internal assemblies (4 of 4) .......................................................................................................... 171
Table 3-14 Scanner and document feeder main assemblies ......................................................................... 175
Table 3-15 Document feeder assembly parts ................................................................................................ 177
Table 3-16 Alphabetical parts list ................................................................................................................... 178
Table 3-17 Numerical parts list ....................................................................................................................... 181
Figure 1-1 Phillips and Pozidrive screwdriver comparison ................................................................................. 4
Figure 1-2 Parts-removal tree ............................................................................................................................ 7
Figure 1-3 Remove the pickup roller .................................................................................................................. 9
Figure 1-4 Remove the separation roller (1 of 2) ............................................................................................. 10
Figure 1-5 Remove the separation roller (2 of 2) ............................................................................................. 11
Figure 1-6 Remove the transfer roller (1 of 3) .................................................................................................. 12
Figure 1-7 Remove the transfer roller (2 of 3) .................................................................................................. 12
Figure 1-8 Remove the transfer roller (3 of 3) .................................................................................................. 13
Figure 1-9 Remove the print-cartridge drawer (1 of 5) ..................................................................................... 14
Figure 1-10 Remove the print-cartridge drawer (2 of 5) ................................................................................... 14
Figure 1-11 Remove the print-cartridge drawer (3 of 5) ................................................................................... 15
Figure 1-12 Remove the print-cartridge drawer (4 of 5) ................................................................................... 15
Figure 1-13 Remove the print-cartridge drawer (5 of 5) ................................................................................... 16
Figure 1-14 Remove the right cover (1 of 5) .................................................................................................... 17
Figure 1-15 Remove the right cover (2 of 5) .................................................................................................... 17
Figure 1-16 Remove the right cover (3 of 5) .................................................................................................... 18
Figure 1-17 Remove the right cover (4 of 5) .................................................................................................... 18
Figure 1-18 Remove the right cover (5 of 5) .................................................................................................... 19
Figure 1-19 Remove the right-front cover (1 of 4) ............................................................................................ 20
Figure 1-20 Remove the right-front cover (2 of 4) ............................................................................................ 20
Figure 1-21 Remove the right-front cover (3 of 4) ............................................................................................ 21
Figure 1-22 Remove the right-front cover (4 of 4) ............................................................................................ 21
Figure 1-23 Remove the control panel (1 of 5) ................................................................................................ 22
Figure 1-24 Remove the control panel (2 of 5) ................................................................................................ 23
Figure 1-25 Remove the control panel (3 of 5) ................................................................................................ 23
Figure 1-26 Remove the control panel (4 of 5) ................................................................................................ 24
Figure 1-27 Remove the control panel (5 of 5) ................................................................................................ 24
Figure 1-28 Remove the left cover (1 of 6) ....................................................................................................... 25
Figure 1-29 Remove the left cover (2 of 6) ....................................................................................................... 25
Figure 1-30 Remove the left cover (3 of 6) ....................................................................................................... 26
Figure 1-31 Remove the left cover (4 of 6) ....................................................................................................... 26
Figure 1-32 Remove the left cover (5 of 6) ....................................................................................................... 27
Figure 1-33 Remove the left cover (6 of 6) ....................................................................................................... 27
Figure 1-34 Remove the document-feeder and scanner assembly (1 of 3) ..................................................... 28
ENWWxiii
Figure 1-35 Remove the document-feeder and scanner assembly (2 of 3) ..................................................... 28
Figure 1-36 Remove the document-feeder and scanner assembly (3 of 3) ..................................................... 29
Figure 1-37 Remove the rear-center cover (1 of 2) .......................................................................................... 30
Figure 1-38 Remove the rear-center cover (2 of 2) .......................................................................................... 30
Figure 1-39 Remove the rear-upper cover (1 of 4) ........................................................................................... 31
Figure 1-40 Remove the rear-upper cover (2 of 4) ........................................................................................... 31
Figure 1-41 Remove the rear-upper cover (3 of 4) ........................................................................................... 32
Figure 1-42 Remove the rear-upper cover (4 of 4) ........................................................................................... 32
Figure 1-43 Remove the speaker (1 of 2) ........................................................................................................ 33
Figure 1-44 Remove the speaker (2 of 2) ........................................................................................................ 33
Figure 1-45 Remove the top cover (1 of 3) ...................................................................................................... 34
Figure 1-46 Remove the top cover (2 of 3) ...................................................................................................... 35
Figure 1-47 Remove the top cover (3 of 3) ...................................................................................................... 35
Figure 1-48 Remove the front door and front-lower cover (1 of 8) ................................................................... 36
Figure 1-49 Remove the front door and front-lower cover (2 of 8) ................................................................... 37
Figure 1-50 Remove the front door and front-lower cover (3 of 8) ................................................................... 37
Figure 1-51 Remove the front door and front-lower cover (4 of 8) ................................................................... 38
Figure 1-52 Remove the front door and front-lower cover (5 of 8) ................................................................... 38
Figure 1-53 Remove the front door and front-lower cover (6 of 8) ................................................................... 39
Figure 1-54 Remove the front door and front-lower cover (7 of 8) ................................................................... 39
Figure 1-55 Remove the front door and front-lower cover (8 of 8) ................................................................... 40
Figure 1-56 Remove the rear door and rear-lower cover (1 of 5) .................................................................... 41
Figure 1-57 Remove the rear door and rear-lower cover (2 of 5) .................................................................... 41
Figure 1-58 Remove the rear door and rear-lower cover (3 of 5) .................................................................... 42
Figure 1-59 Remove the rear door and rear-lower cover (4 of 5) .................................................................... 42
Figure 1-60 Remove the rear door and rear-lower cover (5 of 5) .................................................................... 43
Figure 1-61 Remove the paper-guide assembly (1 of 2) .................................................................................. 44
Figure 1-62 Remove the paper-guide assembly (2 of 2) .................................................................................. 44
Figure 1-63 Remove the USB port PCA and bracket (1 of 3) .......................................................................... 45
Figure 1-64 Remove the USB port PCA and bracket (2 of 3) .......................................................................... 46
Figure 1-65 Remove the USB port PCA and bracket (3 of 3) .......................................................................... 46
Figure 1-66 Reinstall the USB port PCA and bracket ...................................................................................... 47
Figure 1-67 Remove the wireless PCA (1 of 2) ................................................................................................ 48
Figure 1-68 Remove the wireless PCA (2 of 2) ................................................................................................ 48
Figure 1-69 Remove the DC controller PCA (1 of 5) ........................................................................................ 50
Figure 1-70 Remove the DC controller PCA (2 of 5) ........................................................................................ 50
Figure 1-71 Remove the DC controller PCA (3 of 5) ........................................................................................ 51
Figure 1-72 Remove the DC controller PCA (4 of 5) ........................................................................................ 52
Figure 1-73 Remove the DC controller PCA (5 of 5) ........................................................................................ 52
Figure 1-74 Remove the formatter PCA, fax card PCA, and support bracket (1 of 8) ..................................... 54
Figure 1-75 Remove the formatter PCA, fax card PCA, and support bracket (2 of 8) ..................................... 54
Figure 1-76 Remove the formatter PCA, fax card PCA, and support bracket (3 of 8) ..................................... 55
Figure 1-77 Remove the formatter PCA, fax card PCA, and support bracket (4 of 8) ..................................... 56
Fi
e 1-78 Remove the formatter PCA, fax card PCA, and support bracket (5 of 8) ..................................... 56
gur
xivENWW
Figure 1-79 Remove the formatter PCA, fax card PCA, and support bracket (6 of 8) ..................................... 57
Figure 1-80 Remove the formatter PCA, fax card PCA, and support bracket (7 of 8) ..................................... 57
Figure 1-81 Remove the formatter PCA, fax card PCA, and support bracket (8 of 8) ..................................... 58
Figure 1-82 Remove the fuser motor (1 of 2) ................................................................................................... 59
Figure 1-83 Remove the fuser motor (2 of 2) ................................................................................................... 59
Figure 1-84 Remove the main motor (1 of 4) ................................................................................................... 60
Figure 1-85 Remove the main motor (2 of 4) ................................................................................................... 60
Figure 1-86 Remove the main motor (3 of 4) ................................................................................................... 61
Figure 1-87 Remove the main motor (4 of 4) ................................................................................................... 61
Figure 1-88 Remove the ITB (1 of 5) ................................................................................................................ 62
Figure 1-89 Remove the ITB (2 of 5) ................................................................................................................ 63
Figure 1-90 Remove the ITB (3 of 5) ................................................................................................................ 63
Figure 1-91 Remove the ITB (4 of 5) ................................................................................................................ 64
Figure 1-92 Remove the ITB (5 of 5) ................................................................................................................ 64
Figure 1-93 Reinstall the ITB (1 of 2) ............................................................................................................... 65
Figure 1-94 Reinstall the ITB (2 of 2) ............................................................................................................... 66
Figure 1-95 Remove the power supply (high-voltage; 1 of 6) .......................................................................... 67
Figure 1-96 Remove the power supply (high-voltage; 2 of 6) .......................................................................... 68
Figure 1-97 Remove the power supply (high-voltage; 3 of 6) .......................................................................... 68
Figure 1-98 Remove the power supply (high-voltage; 4 of 6) .......................................................................... 69
Figure 1-99 Remove the power supply (high-voltage; 5 of 6) .......................................................................... 69
Figure 1-100 Remove the power supply (high-voltage; 6 of 6) ........................................................................ 70
Figure 1-101 Reinstall the power supply (high voltage) ................................................................................... 70
Figure 1-102 Remove the power supply (low voltage; 1 of 8) .......................................................................... 71
Figure 1-103 Remove the power supply (low voltage; 2 of 8) .......................................................................... 72
Figure 1-104 Remove the power supply (low voltage; 3 of 8) .......................................................................... 72
Figure 1-105 Remove the power supply (low voltage; 4 of 8) .......................................................................... 73
Figure 1-106 Remove the power supply (low voltage; 5 of 8) .......................................................................... 73
Figure 1-107 Remove the power supply (low voltage; 6 of 8) .......................................................................... 74
Figure 1-108 Remove the power supply (low voltage; 7 of 8) .......................................................................... 74
Figure 1-109 Remove the power supply (low voltage; 8 of 8) .......................................................................... 75
Figure 1-110 Reinstall the power supply (low voltage; 1 of 2) ......................................................................... 75
Figure 1-111 Reinstall the power supply (low voltage; 2 of 2) ......................................................................... 76
Figure 1-112 Remove the power supply (fuser; 1 of 5) .................................................................................... 77
Figure 1-113 Remove the power supply (fuser; 2 of 5) .................................................................................... 78
Figure 1-114 Remove the power supply (fuser; 3 of 5) .................................................................................... 78
Figure 1-115 Remove the power supply (fuser; 4 of 5) .................................................................................... 79
Figure 1-116 Remove the power supply (fuser; 5 of 5) .................................................................................... 79
Figure 1-117 Remove the fuser (1 of 4) ........................................................................................................... 80
Figure 1-118 Remove the fuser (2 of 4) ........................................................................................................... 81
Figure 1-119 Remove the fuser (3 of 4) ........................................................................................................... 81
Figure 1-120 Remove the fuser (4 of 4) ........................................................................................................... 82
Figure 1-121 Remove the document feeder separation pad assembly (1 of 7) ............................................... 83
Figure 1-122 Remove the document feeder separation pad assembly (2 of 7) ............................................... 83
ENWWxv
Figure 1-123 Remove the document feeder separation pad assembly (3 of 7) ............................................... 84
Figure 1-124 Remove the document feeder separation pad assembly (4 of 7) ............................................... 84
Figure 1-125 Remove the document feeder separation pad assembly (5 of 7) ............................................... 85
Figure 1-126 Remove the document feeder separation pad assembly (6 of 7) ............................................... 85
Figure 1-127 Remove the document feeder separation pad assembly (7 of 7) ............................................... 86
Figure 1-128 Remove the document feeder input tray (1 of 2) ........................................................................ 87
Figure 1-129 Remove the document feeder input tray (2 of 2) ........................................................................ 87
Figure 1-130 Remove the document feeder cover (1 of 3) .............................................................................. 88
Figure 1-131 Remove the document feeder cover (2 of 3) .............................................................................. 88
Figure 1-132 Remove the document feeder cover (3 of 3) .............................................................................. 89
Figure 1-133 Remove the document feeder pick arm assembly (1 of 4) ......................................................... 90
Figure 1-134 Remove the document feeder pick arm assembly (2 of 4) ......................................................... 90
Figure 1-135 Remove the document feeder pick arm assembly (3 of 4) ......................................................... 91
Figure 1-136 Remove the document feeder pick arm assembly (4 of 4) ......................................................... 91
Figure 1-137 Remove the document feeder core assembly (1 of 3) ................................................................ 92
Figure 1-138 Remove the document feeder core assembly (2 of 3) ................................................................ 92
Figure 1-139 Remove the document feeder core assembly (3 of 3) ................................................................ 93
Figure 1-140 Remove the post scan pinch rollers ............................................................................................ 94
Figure 1-141 Remove the document feeder base assembly (1 of 3) ............................................................... 95
Figure 1-142 Remove the document feeder base assembly (2 of 3) ............................................................... 96
Figure 1-143 Remove the document feeder base assembly (3 of 3) ............................................................... 96
Figure 1-144 Remove the document feeder floating hinges ............................................................................ 97
Figure 2-1 DC controller connectors .............................................................................................................. 105
Figure 3-8 Scanner and document feeder main assemblies .......................................................................... 174
Figure 3-9 Document feeder assembly parts ................................................................................................. 176
xviENWW
1Removal and replacement
Introduction
●
Removal and replacement strategy
●
Electrostatic discharge
●
Required tools
●
Service approach
●
Removal and replacement procedures
●
ENWW1
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 might 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.
Some components require inspection, cleaning, or replacement when a product is serviced. Use the
table below to identify these components, and determine if any service related action is necessary.
Table 1-1 Components inspection
ComponentIf the product has printed less than
Pickup roller (product base)●Inspect
10,000 pages...
Clean
●
Replace if damaged
●
If the product has printed more than
10,000 pages...
If this component is damaged, discard
the product.
2Chapter 1 Removal and replacementENWW
Table 1-1 Components inspection (continued)
ComponentIf the product has printed less than
Separation roller (product base)●Inspect
Document feeder pick arm assembly
(includes the pickup rollers)
Document feeder separation padIf the product has printed less than
Intermediate transfer belt (ITB)●Inspect
Transfer roller●Inspect
10,000 pages...
Clean
●
Replace if damaged
●
Inspect
●
●Clean
Replace if damaged
●
15,000 pages...
Inspect
●
Clean
●
Replace if damaged
●
Clean
●
Replace if damaged
●
Clean
●
If the product has printed more than
10,000 pages...
If this component is damaged, discard
the product.
If this component is damaged, discard
the product.
If the product has printed more than
15,000 pages, discard the product.
If this component is damaged, discard
the product.
If this component is damaged, discard
the product.
Replace if damaged
●
Fuser
Covers●Inspect
Inspect
●
●Clean
Replace if damaged
●
Clean
●
Replace if damaged
●
If this component is damaged, discard
the product.
If this component is damaged, discard
the product.
ENWWRemoval and replacement strategy3
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-in) shaft length
●
Small flat-blade screwdriver
●
Torx driver (#10)
●
Needle-nose pliers
●
ESD mat or ESD strap (if one is available)
●
Penlight (optional)
●
CAUTION:Always use a Phillips screwdriver (callout 1). Do not use a Pozidrive screwdriver
(callout 2) or any motorized screwdriver. These can damage screws or screw threads.
Figure 1-1 Phillips and Pozidrive screwdriver comparison
4Chapter 1 Removal and replacementENWW
Service approach
Before performing service
●Remove all paper from the product.
●Turn off the power using the power switch.
Unplug the power cable and interface cable or cables.
●
Place the product on an ESD workstation or mat, or use an ESD strap (if one is available). 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.
CAUTION:Do not touch the imaging drum on the bottom of the print cartridge. Finger prints on
the imaging drum can cause print-quality problems.
Do not allow the image drum to contact any surface when the cartridges are set down. Protect
the image drum at all times. Dust and debris can stick to the drum and cause print-quality
problems.
ENWWService approach5
After performing service
●Plug in the interface cables, and then the power cable.
●Reinstall the print cartridges.
Load paper in the product.
●
Post-service tests
After service has been completed, perform the following tests to verify that the repair or replacement
was successful.
Test 1 (print-quality test)
1.Verify that you have completed the necessary reassembly steps.
2.Ensure that the input tray contains clean, unmarked paper.
3.With the power cord and interface cables attached, turn on the product.
4.Verify that the expected start up sounds occur.
5.Print a configuration page, and then verify that the expected printing sounds occur.
6.Print a demo page, and then verify that the print quality is as expected.
7.Send a print job from the host computer, and then verify that the output meets expectations.
8.If necessary, restore any customer-specified settings.
9.Clean the outside of the product with a damp cloth.
Test 2 (copy-quality test)
1.Verify that you have completed the necessary reassembly steps.
2.Ensure that the input tray contains clean, unmarked paper.
3.With the power cord attached, turn on the product.
4.Verify that the expected start up sounds occur.
5.Print a configuration page, and then verify that the expected printing sounds occur.
6.Place the configuration page in the document feeder, or on the flatbed glass.
7.Print a copy job, and then verify the results.
8.Clean the outside of the product with a damp cloth.
Test 3 (fax-quality test)
1.Place the configuration page in the document feeder.
2.Type a valid fax number and send the fax job.
3.Verify that the send quality and receive quality meet expectations.
6Chapter 1 Removal and replacementENWW
Parts removal order
Use the following diagram to determine which parts must be removed before removing other parts.
Figure 1-2 Parts-removal tree
ComponentRemove
Pickup roller
Separation roller
Transfer roller
Print cartridge drawer
Right cover
Right-front cover1 and cover 2 Right cover
Control panel
Left cover
Document-feeder
and scanner assembly
Rear-center cover
Rear-upper cover
Speaker
Top cover
Front door
and front-lower cover
Rear door
and rear-lower cover
Paper guide assembly
USB port PCA and bracket
Wireless PCA
DC controller PCA
Formatter PCA, fax card PCA