HP Color Laserjet Pro 100 M175 Service Manual

0 (0)

LASERJET PRO 100 COLOR MFP M175

Service Manual

HP LaserJet Pro 100 color MFP M175

Service Manual

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: CE866-90936

Edition 1, 7/2012

Trademark Credits

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

Conventions used in this guide

ENWW

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

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

ENWW

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

ENWW

vii

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 .............................................................................................................................	132
Customer self-repair warranty service .....................................................................................	133
Customer support .................................................................................................................	133
Repack the product ..............................................................................................................	134
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 ..................................................................................................	149
Index ...............................................................................................................................	151

ENWW

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 specifications1 ........................................................................................................	136
Table B-2 Environmental specifications ................................................................................................	136

ENWW

xii

ENWW

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) ........................................................................................	30
Figure 1-32 Remove the control panel (3 of 3) ........................................................................................	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 fuser delivery assembly (2 of 6) ..........................................................................	54
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

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

ENWW

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

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.

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

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 Print cartridges on page 7 and Imaging drum on page 9

●Remove the input tray. See Input tray on page 11.

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.

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.

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 Right cover Left cover pad

Left cover

Left cover Document feeder

Top door, rear cover, Right cover Left cover		Document	Document
and delivery cover		feeder	feeder hinges
Rear door assembly	Right cover
Rear-lower cover	Right cover Left cover	Rear door		Top door,
Control Panel	Right cover Left cover	Document	Document	Top door,
		feeder	feeder hinges	rear cover,
				and delivery cover
Left-front cover	Right cover Left cover	Document	Document	Top door,	Control
		feeder	feeder hinges	rear cover,	Panel
				and delivery cover
Front door	Right cover Left cover	Document	Document	Top door,	Control
		feeder	feeder hinges	rear cover,	Panel
				and delivery cover
Inner cover	Right cover Left cover	Document	Document	Top door,	Control
		feeder	feeder hinges	rear cover,	Panel

and delivery cover

Left-front cover

Formatter PCA	Left cover
(base model)
Formatter and	Left cover
wireless PCA	Left cover
(plus model)
Fuser power supply	Left cover
ITB	Right cover Left cover

Document	Document	Top door,	Rear door Rear-lower	Formatter
feeder	feederhinges	rear cover,	assembly cover	PCA

and delivery cover

Fuser delivery	Right cover Left cover
assembly
Engine controller	Right cover Left cover
assembly

Document	Document	Top door,	Rear door Rear-lower Formatter
feeder	feeder hinges rear cover,		assembly	cover	PCA
		and delivery cover
Document	Document	Top door,	Control	Left-front	Inner
feeder	feeder hinges rear cover,		Panel	cover	cover

and delivery cover

Formatter

PCA

Low-voltage power	Right cover Left cover Document	Document	Top door,	Rear door Rear-lower	Control	Left-front	Inner cover Formatter
supply assembly	feeder	feeder hinges rear cover,		assembly cover	Panel	cover	PCA
			and delivery cover

ENWW

Service approach

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

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 button to rotate the print cartridge carousel to the cartridge color that you want to replace.

NOTE: All doors must be closed when pressing the Cartridge button. Also, the imaging drum must be installed for the Cartridge button to work.

NOTE: Wait until the Rotating message and the rotation sounds stop before opening the print cartridge door.

ENWW

Removal and replacement procedures

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.

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

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

HP Color Laserjet Pro 100 M175 Service Manual

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

12 Chapter 1 Removal and replacement

ENWW

+ 142 hidden pages