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LASERJET PRO 100 COLOR MFP M175Service Manual

Service parts ... 103Whole-unit replacement part

Tools for troubleshootingComponent diagnosticsComponent testsControl-panel testsThe product includes diagnostic tests for the control panel.Test the c

DiagramsLocations of connectorsFigure 2-1 Locations of connectorsJ103J130J128J106J107J119J109J104J110J112J152J108J102J101J140Item Description Item De

Locations of major componentsFigure 2-2 Cross section viewItem Description Item Description1 Pressure roller 10 T1 pad2 Delivery roller 11 ITB3 Fuser

Figure 2-3 External covers and doors (base)1118742103956Table 2-1 External covers and doors (base)Item Description Item Description1 Right-top cover

General timing chartFigure 2-4 General timing diagramTiming chart two consecutive prints on LTR paper (Full-color 1/1 speed mode)STBY STBY2 Pickup mo

General circuit diagramFigure 2-5 General circuit diagramA65 43BCDTPTP1111SLMMM1111M MSL/BDI+3.3TSGNDLDPWMSGNDSGNDVDO/VDOSCLK/TOP/BDOSGND/VDIROTMBNRO

Internal print-quality test pagesPrint a Diagnostics PageIf the printed output has colored shadows, blurry graphics, or areas that have poor color, yo

Interpret the Print Quality Page1. Press the Setup button to open the menus.2. Use the arrow buttons to scroll to the Reports menu, and then press the

Print-quality troubleshooting toolsRepetitive image defects rulerIf the product output has a consistent, repetitive defect, then use the table in this

Control panel menusSetup menuTo open this menu, press the Setup button. The following sub menus are available:●Reports●System Setup●Service●Network Se

Power cord statement (Japan) ... 144EMC statement (Korea) ...

First level Second level Third level ValuesPaper Setup Def. Paper Size LetterA4LegalDef. Paper Type Lists available media types.Tray 1 Paper Type

First level Second level Third level ValuesSupply Settings Black Cartridge Very Low Setting StopPrompt*ContinueNOTE: A customerconfigurable option on

First level Second level Third level ValuesCourier Font Regular*DarkAllow Color Yes*NoColor Copy On*OffService menuIn the following table, items

First level Second level ValuesAuto Crossover On*OffNetwork Services IPv4IPv6On*OffShow IP Address YesNo*Link Speed Automatic*10T Full10T Half10

First level Second level ValuesLight/Dark (Slider with a range of 11 settings.)Optimize Auto*MixedPictureTextPaper Paper Size Lists available medi

Service mode functionsService menu/Secondary service menuService menuTo open this menu, press the Setup button, and then open the Service sub menu.In

Secondary service menu structureTable 2-3 Secondary service menuMenu item Sub-menu item DescriptionService Reports Cont. Self-Test This item prints a

Product resetsRestore factory settingsRestoring the factory-set defaults returns most of the settings to the factory defaults. It will not reset thepa

100 Chapter 2 Solve problems ENWW

3 Parts and diagrams●Order parts by authorized service providers●How to use the parts lists and diagrams●Assembly locations●Covers, panels, and doors●

x ENWW

Order parts by authorized service providersOrder replacement partsTable 3-1 Order parts, accessories, and suppliesOrder supplies and paper www.hp.com

Service partsNOTE: The parts in the following table are not shown in the assembly illustrations in this chapter.Item Description Part numberHP jewel H

How to use the parts lists and diagramsCAUTION: Be sure to order the correct part. When looking for part numbers for electricalcomponents, pay careful

Assembly locationsBase product (no optional trays or accessories)Figure 3-1 Base product (no optional trays or accessories)12345687Table 3-5 Base pr

Covers, panels, and doorsFigure 3-2 Covers, panels, and doors10111138612794352*A01*A01*A03*A01*A01*A0211113394752126810106 Chapter 3 Parts and diag

Table 3-6 Covers, panels, and doorsRef Description Part number Qty1 Door, front RL1-3287-000 12 Cover, fixing RC3-1294-000 13 Cover, blanking RC3-128

Internal assemblyInternal assemblyFigure 3-3 Internal assemblySEE PCAsSEE PCAs SEE PCAs(J106)(J302)(J103)(J3)(J152)(J6)(J107)(J119)(J130)32158710469*

Table 3-7 Internal assembly)Ref Description Part number Qty1 Roller, paper pick-up RL1-2671-000 12 Intermediate transfer belt assembly (ITB) RM1-7274

PCAsFigure 3-4 PCAs23451110 Chapter 3 Parts and diagrams ENWW

Table 3-8 PCAsRef Description Part number Qty1 Power supply, low-voltage (110-127 V) RM1-8203-000 11 Power supply, low-voltage (220–240 V) RM1-8204-0

List of tablesTable 2-1 External covers and doors (base) ...

Scanner and document feeder (ADF) mainassembliesFigure 3-5 Scanner and document feeder main assemblies2341112 Chapter 3 Parts and diagrams ENWW

Table 3-9 Scanner and document feeder main assembliesRef Description Part number Qty1 Scanner/ADF assembly (no control panel) CE865-60125 2 Document

Document feeder internal componentsFigure 3-6 Document feeder assembly parts12345678910114 Chapter 3 Parts and diagrams ENWW

Table 3-10 Document feeder assembly partsRef Description Part number Qty1 Separation pad assembly (ADF) Q7400–60005 12 Input tray, assembly (ADF) CE5

Alphabetical parts listTable 3-11 Alphabetical parts listDescription Part number Table and pageControl panel assembly, Asian CE865-60107Scanner and d

Table 3-11 Alphabetical parts list (continued)Description Part number Table and pageInput tray, assembly (ADF) CE538-60122Document feeder assemblypar

Table 3-11 Alphabetical parts list (continued)Description Part number Table and pageSpring, control panel CE865-00009Scanner and document feedermain

Numerical parts listTable 3-12 Numerical parts listPart number Description Table and page1150-7940 Wireless N module (wireless models only)PCAs on pa

Table 3-12 Numerical parts list (continued)Part number Description Table and pageRC3-1287-000 Cover, blankingCovers, panels, and doorson page 107RC3-

Table 3-12 Numerical parts list (continued)Part number Description Table and pageRM1-7280-000 Right cover assemblyCovers, panels, and doorson page 10

xii ENWW

122 Chapter 3 Parts and diagrams ENWW

A Service and support●Hewlett-Packard limited warranty statement●HP's Premium Protection Warranty: LaserJet print cartridge limited warranty stat

Hewlett-Packard limited warranty statementHP PRODUCT DURATION OF LIMITED WARRANTYHP LaserJet Pro 100 color MFP M175a, M175nw One-year product exchange

THE WARRANTY TERMS CONTAINED IN THIS STATEMENT, EXCEPT TO THE EXTENT LAWFULLYPERMITTED, DO NOT EXCLUDE, RESTRICT OR MODIFY AND ARE IN ADDITION TO THEM

HP's Premium Protection Warranty: LaserJet printcartridge limited warranty statementThis HP product is warranted to be free from defects in mater

HP's LaserJet imaging drum limited warrantystatement for replacement imaging drumsThis HP Product is warranted to be free from defects in materia

Data stored on the print cartridge and imagingdrumThe HP print cartridges and imaging drum used with this product contain a memory chip that assists i

End User License AgreementPLEASE READ CAREFULLY BEFORE USING THIS SOFTWARE PRODUCT: This End-User LicenseAgreement (“EULA”) is a contract between (a)

4. TRANSFER.a. Third Party Transfer. The initial end user of the HP Software may make a one-time transfer ofthe HP Software to another end user. Any t

OpenSSLThis product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit(http://www.openssl.org/)THIS SOFTWARE IS PROVIDE

List of figuresFigure 1-1 Phillips and Pozidriv screwdriver comparison ... 3F

Customer self-repair warranty serviceHP products are designed with many Customer Self Repair (CSR) parts to minimize repair time andallow for greater

Repack the productIf HP Customer Care determines that your product needs to be returned to HP for repair, follow thesesteps to repack the product befo

134 Appendix A Service and support ENWW

B Specifications●Physical specifications●Power consumption, electrical specifications, and acoustic emissions●Environmental specificationsENWW 135

Physical specificationsTable B-1 Physical specifications1Specification HP LaserJet Pro 100 color MFP M175Product weight 11.6 kg (25.6 lb)Product heig

C Regulatory information●FCC regulations●Declaration of conformity (base models)●Declaration of conformity (wireless models)●Certificate of Volatility

FCC regulationsThis equipment has been tested and found to comply with the limits for a Class B digital device,pursuant to Part 15 of the FCC rules. T

Declaration of conformity (base models)Declaration of Conformityaccording to ISO/IEC 17050-1 and EN 17050-1Manufacturer's Name: Hewlett-Packard C

Boise, Idaho USAOctober 2010For regulatory topics only:European Contact: Your Local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH,

Declaration of conformity (wireless models)Declaration of Conformityaccording to ISO/IEC 17050-1 and EN 17050-1Manufacturer's Name: Hewlett-Packa

Figure 1-33 Remove the left-front cover (1 of 2) ... 31Figure 1-34 

This Device complies with Part 15 of the FCC Rules. Operation is subject to the following two Conditions: (1) this device may not causeharmful interfe

Certificate of VolatilityHewlett Packard Certicate of Volatility Model: M175n M175nw Part Number: CE865A CE866A Address: 11311 Chinden Blvd. Boise, I

Safety statementsLaser safetyThe Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Administration hasimplemented regulations

EMC statement (Korea)Laser statement for FinlandLuokan 1 laserlaiteKlass 1 Laser ApparatHP LaserJet Pro 100 color M175a, M175nw, laserkirjoitin on käy

Substances Table (China)Restriction on Hazardous Substances statement (Turkey)Türkiye Cumhuriyeti: EEE Yönetmeliğine Uygundur146 Appendix C Regulato

Additional statements for wireless productsFCC compliance statement—United StatesExposure to radio frequency radiationCAUTION: The radiated output pow

Netherlands, Norway, Poland, Portugal, Romania, Slovak Republic, Slovenia, Spain, Sweden,Switzerland, and United Kingdom.Notice for use in FranceFor 2

IndexSymbols/Numerics2ndary service menu 97Aaccessoriesordering 102acoustic specifications 136after-service checklist 4altitude specifications 136Ccal

Network Setup menu 94notes iiiNVRAM initialization 99Oonline support 132operating environmentspecifications 136orderingproduct documents 102supplies a

Figure 1-74 Remove the engine controller assembly (2 of 7) ... 59Figure 1-75 Remove

© 2011 Hewlett-Packard Development Company, L.P.www.hp.com*CE865-90968**CE865-90968*CE865-90968

Figure 3-5 Scanner and document feeder main assemblies ... 112Figure 3-6 Document fee

1 Removal and replacement●Introduction●Removal and replacement strategy●Electrostatic discharge●Required tools●Service approach●Removal and replacemen

IntroductionThis chapter describes the removal and replacement of field-replaceable units (FRUs) only.Replacing FRUs is generally the reverse of remov

Electrostatic dischargeCAUTION: Some parts are sensitive to electrostatic discharge (ESD). Look for the ESD reminderwhen removing product parts. Alwa

Service approachBefore performing service●Remove all paper from the product.●Turn off the power using the power button.WARNING! The power button must

Parts removal orderFigure 1-2 Parts removal order (base)Print cartridgesImaging drumInput traySeparation padSecondarytransfer rollerPickup rollerRigh

Figure 1-3 Parts removal order (document feeder)Document feeder input trayDocument feeder coverDocument feeder base assemblyPost scan pinch rollersDo

Removal and replacement proceduresPrint cartridgesWhen a print cartridge approaches the estimated end of its useful life, you can continue printing wi

2. Open the print cartridge door. 3. Grasp the old print cartridge by the centerhandle and remove it.Close the doors, and then press the Cartridge bu

Imaging drumNOTE: The imaging drum installed in this product is covered by the product warranty. Replacementimaging drums have a one-year limited warr

3. Lift the two levers that hold the imaging drum. 4. Remove the old imaging drum.NOTE: Make sure that you store theremoved imaging drum away from st

Input trayPull the tray away from the printer to remove.Figure 1-4 Remove the trayENWWRemoval and replacement procedures11

HP LaserJet Pro 100 color MFP M175Service Manual

Secondary transfer rollerCAUTION: Do not touch the black spongy part of the roller. Skin oils might cause print-qualityproblems.1. Open the rear door.

Separation pad assembly1. Turn the product face up.WARNING! The ADF portion of the document feeder is not captive and can open when theproduct is plac

Pickup rollerBefore proceeding, remove the following components:●Separation pad assembly. See Separation pad assembly on page 13.●Right cover assembly

Remove the pickup roller assembly1. Remove four screws (callout 1) and the lower stay part (callout 2).Figure 1-7 Remove the pickup roller assembly (

Covers and document feederRight cover1. Open the document feeder.2. Remove one screw (callout 1), and then starting at the rear vertical edge, release

Left cover1. Open the document feeder.2. Remove one screw (callout 1), and then starting at the rear vertical edge, release two tabs(callout 2) and re

Document feederBefore proceeding, remove the following components:●Left cover. See Left cover on page 17.Remove the document feeder1. Release two tabs

2. Disconnect two FFCs (callout 1), and then release them from the guides (callout 2).CAUTION: Do not bend or fold the flat flexible cables (FFCs) dur

4. Lift and rotate the scanner assembly up and away from the hinges.Figure 1-16 Remove the document feeder (4 of 4)1220 Chapter 1 Removal and repla

Document feeder hinges●Left cover. See Left cover on page 17.●Document feeder. See Document feeder on page 18.Remove the document feeder hinges1. Remo

Copyright and License© 2011 Copyright Hewlett-PackardDevelopment Company, L.P.Reproduction, adaptation, or translationwithout prior written permission

Top door, rear-top cover, and delivery coverBefore proceeding, remove the following components:●Right cover. See Right cover on page 16.●Left cover. S

2. Open the top door, release the door retainer arm (callout 1), and then close the top door.Figure 1-20 Remove the top door, rear-top cover, and del

4. Push up on the rear-top cover (callout 1) to slightly raise the delivery cover (callout 2) to releasetwo rear-top cover tabs (callout 3) along the

6. Remove the top door (callout 1) , delivery cover (callout 2), and rear-top cover (callout 3)assembly.Figure 1-24 Remove the top door, rear-top cov

Figure 1-26 Reinstall the top door, rear-top cover, and delivery cover (1 of 2)126 Chapter 1 Removal and replacement ENWW

Rear door assemblyBefore proceeding, remove the following components:●Right cover. See Right cover on page 16.Remove the rear door assembly1. Remove o

Rear-lower coverBefore proceeding, remove the following components:●Right cover assembly. See Right cover on page 16.●Left cover assembly. See Left co

Control panelCAUTION: ESD sensitive.Before proceeding, remove the following components:●Right cover. See Right cover on page 16.●Left cover. See Left

2. Remove two screws (callout 1).Figure 1-31 Remove the control panel (2 of 3)13. Carefully separate the control panel from the product.NOTE: Guide t

Left-front coverBefore proceeding, remove the following components:●Right cover. See Right cover on page 16●Left cover. See Left cover on page 17.●Doc

Conventions used in this guideTIP: Tips provide helpful hints or shortcuts.NOTE: Notes provide important information to explain a concept or to comple

2. Release on tab (callout 1) by slightly rotating the top of the cover (callout 2) away from theproduct.Figure 1-34 Remove the left-front cover (2 o

Front doorBefore proceeding, remove the following components:●Right cover. See Right cover on page 16●Left cover. See Left cover on page 17.●Document

3. Release one tab (callout 1) and slide the front door (callout 2) to the right to remove it.Figure 1-36 Remove the front door (2 of 3)2134 Chapter

Inner coverBefore proceeding, remove the following components:●Right cover. See Right cover on page 16●Left cover. See Left cover on page 17.●Document

2. Remove three machine screws (callout 1), and then remove one self-tapping screw (callout 2).Figure 1-38 Remove the inner cover (2 of 4)123. Releas

4. Remove the inner cover (callout 1).Figure 1-40 Remove the inner cover (4 of 4)1ENWWRemoval and replacement procedures37

Main assembliesFormatter PCA (base model)CAUTION: ESD sensitive.Before proceeding, remove the following components:●Left cover assembly. See Left cov

2. Remove two screws (callout 1), and then remove the formatter PCA.Figure 1-42 Remove the formatter PCA (base model; 2 of 2)1ENWWRemoval and replace

Formatter and wireless PCA (plus model)CAUTION: ESD sensitive.Before proceeding, remove the following components:●Left cover. See Left cover on page

3. Remove four screws (callout 1), and then remove the formatter PCA.Figure 1-45 Remove the formatter and wireless PCA (plus mode; 3 of 3)1ENWWRemova

iv Conventions used in this guide ENWW

Fuser power supplyCAUTION: ESD sensitive.Before proceeding, remove the following components:●Left cover. See Left cover on page 17.Remove the fuser p

ITB assemblyCAUTION: ESD sensitive.NOTE: If you have not removed the image drum before servicing the product, remove it now. SeeImaging drum on page

2. Remove five screws (callout 1), and then separate the sheet-metal plate (callout 2) and fuser powersupply (callout 3) from the product.CAUTION: The

4. Release one tab (callout 1), and then remove the cable cover (callout 2).Figure 1-51 Remove the ITB assembly (4 of 17)215. Disconnect one connecto

6. Release one tab (callout 1), and then remove the rear-door left-side arm (callout 2).Figure 1-53 Remove the ITB assembly (6 of 17)127. Release the

8. Rotate the spring (callout 1) so that it faces out of the product.Figure 1-55 Remove the ITB assembly (8 of 17)1ENWWRemoval and replacement proced

9. Rotate the ITB fixing part (callout 1) so that it faces out of the product.Figure 1-56 Remove the ITB assembly (9 of 17)1Figure 1-57 Remove the I

10. Release two tabs (callout 1), and then remove the spring cover (callout 2).Figure 1-58 Remove the ITB assembly (11 of 17)1211. Release one tab (c

12. Release the hook end (callout 1) of the ITB fixing spring (callout 2), and then pull the wire harness(callout 3) through the hole in the chassis.F

14. Rotate the ITB fixing part (callout 1) so that it faces out of the product.Figure 1-62 Remove the ITB assembly (15 of 17)1Figure 1-63 Remove the

Table of contents1 Removal and replacement ... 1Introduc

15. Pull the ITB assembly (callout 1) straight out of the product.CAUTION: Avoid touching the black plastic transfer belt. Skin oils on the belt might

Fuser delivery assemblyNOTE: For this product, the fuser and the paper delivery components are one assembly.Position the fuser pressure roller for rem

Remove the fuser delivery assemblyCAUTION: ESD sensitive.1. Disconnect four connectors.Figure 1-65 Remove the fuser delivery assembly (1 of 6)12. Re

3. Disconnect one FFC (Callout 1), and then remove the sheet-metal plate and fuser power supplyassembly.Figure 1-67 Remove the fuser delivery assembl

5. Disconnect four connectors (callout 1), Release the wire harnesses (callout 2) from the guide(callout 3).Figure 1-69 Remove the fuser delivery ass

Reinstall the fuser delivery assembly▲When reassembling the fuser delivery assembly, be sure the drive cam (callout 1) for fuserpressure release is po

Engine controller assemblyCAUTION: ESD sensitive.Before proceeding, remove the following components:●Right cover. See Right cover on page 16●Left cov

2. Remove five screws (callout 1), and then separate the sheet-metal plate (callout 2) and fuser powersupply (callout 3) from the product.CAUTION: The

4. Release one tab (callout 1) and remove the cable cover (callout 2).Figure 1-76 Remove the engine controller assembly (4 of 7)215. Release one tab

6. Disconnect eleven connectors (callout 1).Figure 1-78 Remove the engine controller assembly (6 of 7)17. Remove six screws (callout 1), release two

Remove the rear-lower cover ... 28Control panel ...

Installing a replacement engine controller assemblyRelease one tab (callout 1), remove the guide (callout 2) from the discarded engine controller asse

Low-voltage power supply assemblyCAUTION: ESD sensitive.Before proceeding, remove the following components:●Right cover. See Right cover on page 16●L

2. Remove five screws (callout 1), and then separate the sheet-metal plate (callout 2) and fuser powersupply (callout 3) from the product.CAUTION: The

4. Release one cable from the cable guide (callout 1), and then remove two screws (callout 2).Figure 1-84 Remove the low-voltage power supply assembl

6. Place the product rear-side up, and then remove four screws (callout 1).Figure 1-86 Remove the low-voltage power supply assembly (6 of 9)17. Remov

8. Release the wire harness (callout 1) from the guide (callout 2), and then pull the wire harnessthrough the hole in the chassis.Figure 1-88 Remove

Reinstall the low-voltage power supplyMake sure that the power receptacle (callout 1), guide (callout 2), and the ferrite (callout 3) arecorrectly ass

Document feeder componentsNOTE: This section describes replacement and removal of individual document feeder components.To remove the complete documen

Document feeder cover1. Open the document feeder cover.Figure 1-94 Remove the document feeder cover (1 of 3)2. Release one tab (callout 1), and then

3. Release the hinges (callout 1), and then remove the document feeder cover.Figure 1-96 Remove the document feeder cover (3 of 3)1ENWWRemoval and re

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

Document feeder coreBefore proceeding, remove the following components:●Document feeder input tray. See Document feeder input tray on page 69.●Documen

3. Carefully flex the hinge retainer to release one hinge pin.Figure 1-99 Remove the document feeder core (3 of 4)4. Remove the document feeder core.

Post scan pinch rollersBefore proceeding, remove the following components:●Document feeder input tray. See Document feeder input tray on page 69.●Docu

Document feeder base assemblyBefore proceeding, remove the following components:●Document feeder input tray. See Document feeder input tray on page 69

2. Remove two screws (callout 1).TIP: These screws require a #10 torx driverFigure 1-103 Remove the document feeder base assembly (2 of 3)13. Open th

2 Solve problems●Solve problems checklist●Menu map●Troubleshooting processes●Tools for troubleshooting●Service mode functions●Product updatesENWW 77

Solve problems checklistFollow these steps when trying to solve a problem with the product.●Step 1: Test print functionality●Step 2: Test copy functio

Menu mapUse the following procedure to print a control-panel menu layout map.1. On the product control panel, press the Setup button.2. Use the arrow

Troubleshooting processesDetermine the problem source The following table includes basic questions to ask the customer to quickly help define the prob

General topic QuestionsCondensation●Does condensation occur following a temperature change (particularly inwinter following cold storage)? If so, wipe