HP LaserJet Enterprise 500 color MFP M575 Printers and HP LaserJet Enterprise 500 color flow MFP M575 Printers Service Repair Ma

LASERJET ENTERPRISE FLOW MFP M575 LASERJET ENTERPRISE 500 COLOR MFP Repair Manual M575 M575c

HP LaserJet Enterprise 500 color MFP M575 Printers HP LaserJet Enterprise 500 color flow MFP M575 Printers Repair Manual

Copyright and License © 2012 Copyright Hewlett-Packard Development Company, L.P. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Part number: CD644-90966 Edition 2, 11/2012 Trademark Credits Adobe ® , Adobe Photoshop ® , Acrobat ® , and PostScript ® are trademarks of Adobe Systems Incorporated. Apple and the Apple logo are trademarks of Apple Computer, Inc., registered in the U.S. and other countries. iPod is a trademark of Apple Computer, Inc. iPod is for legal or rightholder-authorized copying only. Don't steal music. Microsoft®, Windows®, Windows® XP, and Windows Vista® are U.S. registered trademarks of Microsoft Corporation. PANTONE® is Pantone, Inc's check- standard trademark for color. UNIX ® is a registered trademark of The Open Group. 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. ENWW iii

iv Conventions used in this guide ENWW

Table of contents 1 Removal and replacement ................................................................................................ 1 Introduction ............................................................................................................................. 2 Removal and replacement strategy ............................................................................................. 2 General cautions during removal and replacement ........................................................ 2 Electrostatic discharge ............................................................................................... 3 Required tools ........................................................................................................... 3 Types of screws ........................................................................................................ 4 Service approach ..................................................................................................................... 5 Before performing service .......................................................................................... 6 After performing service ............................................................................................. 6 Post-service test ......................................................................................................... 7 Print-quality test .......................................................................................... 7 Copy-quality test ........................................................................................ 7 DC controller PCA ..................................................................................................... 8 Parts removal order ................................................................................................... 9 Removal and replacement procedures ...................................................................................... 11 Customer self repair (CSR) components ...................................................................... 11 Toner cartridges ....................................................................................... 11 Staple cartridge ....................................................................................... 13 Duplex-reverse guide ................................................................................ 14 Toner-collection unit .................................................................................. 15 Formatter PCA ......................................................................................... 17 Fax PCA and cable .................................................................................. 18 Remove the fax PCA and cable ................................................... 18 Hard drive .............................................................................................. 20 Remove the HDD ....................................................................... 20 Install a replacement hard drive .................................................. 22 Tray 2 and 3 ........................................................................................... 23 Fuser ...................................................................................................... 24 Pickup roller and separation pad (Tray 1) ................................................... 25 Pickup roller (Tray 2) ................................................................................ 27 Pickup and feed rollers (Tray 3) .................................................................. 29 ENWW v

Separation roller (Tray 2) .......................................................................... 31 Secondary transfer roller ........................................................................... 32 Reinstall the transfer roller ........................................................... 33 Intermediate transfer belt (ITB) .................................................................... 34 Front-door assembly ................................................................................. 37 Foam reflector kit ..................................................................................... 38 Document feeder pickup roller ................................................................... 39 Document feeder separation pad and spring ............................................... 41 Control panel .......................................................................................... 44 Control-panel assembly (M575c model) ...................................................... 47 Important removal considerations ................................................ 47 Remove the control-panel assembly .............................................. 49 Reinstall the control-panel assembly ............................................. 56 Control-panel assembly to keyboard FFC (M575c model) .............................. 63 Important considerations ............................................................ 63 Remove the control-panel assembly to keyboard FFC ..................... 64 Reinstall the control-panel assembly to keyboard FFC ..................... 65 Keyboard assembly (M575c model) ........................................................... 68 Remove the keyboard assembly .................................................. 68 Keyboard overlay (M575c model) .............................................................. 72 Install a keyboard overlay .......................................................... 72 Back-side background selector assembly (M575c model) .............................. 76 Right door (optional paper feeder) ............................................................. 78 External panels, covers, and doors ............................................................................ 80 Identification and location ......................................................................... 80 Control-panel USB cover ........................................................................... 81 Control-panel HIP (hardward integration pocket) .......................................... 82 Front-upper cover ..................................................................................... 83 Remove the front-upper cover ...................................................... 83 Stapler cover ........................................................................................... 85 Remove the stapler cover ............................................................ 85 Right-door assembly ................................................................................. 86 Right-rear cover ........................................................................................ 90 Left cover ................................................................................................ 92 Rear-upper cover ...................................................................................... 95 Left-upper cover ........................................................................................ 97 Remove the left-upper cover ........................................................ 97 Rear cover ............................................................................................... 98 Remove the rear cover ............................................................... 98 Right-front cover ..................................................................................... 100 Remove the right-front cover ...................................................... 100 vi ENWW

Delivery cover ........................................................................................ 104 Remove the delivery cover ........................................................ 104 Right-top cover ....................................................................................... 106 Remove the right-top cover ....................................................... 106 Upper-right cover ................................................................................... 108 Remove the upper-right cover .................................................... 108 Front-top cover ....................................................................................... 110 Remove the front-top cover ....................................................... 110 Rear-top cover ....................................................................................... 112 Remove the rear-top cover ........................................................ 112 Document feeder and scanner assemblies ................................................................ 114 Cover front (document feeder front cover) .................................................. 114 Cover rear (document feeder rear cover) ................................................... 116 Deskew mylar and separation mylar ......................................................... 118 Document feeder tray extender ................................................................ 120 Document feeder jam-access cover ........................................................... 121 Docuement feeder roller cover ................................................................. 124 Document feeder whole unit .................................................................... 127 Reinstall the document feeder .................................................... 129 Document feeder whole unit (M575c model) ............................................. 130 Remove the document feeder .................................................... 130 Reinstall the document feeder .................................................... 131 Document feeder hinge assy .................................................................... 132 Scanner-control board (SCB) .................................................................... 133 Remove the SCB ...................................................................... 133 Scanner-control board (SCB; M575c) ....................................................... 136 Remove the SCB ...................................................................... 136 Image scanner whole unit ........................................................................ 139 Remove the scanner assembly ................................................... 139 Reinstall the scanner ................................................................ 142 Internal assemblies ................................................................................................ 147 Stapler assembly .................................................................................... 147 Remove the stapler assembly .................................................... 147 Interconnect board (ICB) ......................................................................... 148 Remove the ICB ....................................................................... 148 DC controller PCA and tray ..................................................................... 150 Remove the DC controller PCA and tray ..................................... 150 Low-voltage power supply (LVPS) .............................................................. 153 Remove the LVPS ..................................................................... 153 Delivery fan, cartridge fan, and environmental sensor ................................. 158 Remove the delivery fan, cartridge fan, and environmental sensor . 158 ENWW vii

Toner-collection sensor ............................................................................ 163 Remove the toner-collection sensor ............................................. 163 Residual-toner-feed motor ........................................................................ 166 Remove the residual-toner-feed motor ......................................... 166 Secondary transfer assembly ................................................................... 171 Reinstall the secondary transfer assembly ................................... 172 Lower pickup guide ................................................................................ 173 Remove the lower pickup guide ................................................ 173 Reinstall the lower pickup guide ................................................ 176 Registration density (RD) sensor assembly .................................................. 177 Remove the RD sensor assembly ................................................ 177 Power-supply fan and fan duct ................................................................. 181 Remove the power-supply fan and fan duct ................................. 181 Registration assembly ............................................................................. 184 Remove the registration assembly .............................................. 184 High-voltage power supply lower ............................................................. 189 Remove the high-voltage power supply lower .............................. 189 Developing-disengagement motor ............................................................. 192 Remove the developing-disengagement motor ............................. 192 Pickup motor .......................................................................................... 194 Remove the pickup motor ......................................................... 194 Lifter-drive assembly ................................................................................ 195 Remove the lifter-drive assembly ................................................ 195 Tray-pickup drive assembly ...................................................................... 197 Remove the tray-pickup drive assembly ...................................... 197 Tray-pickup assembly .............................................................................. 204 Remove the tray-pickup assembly .............................................. 204 Laser/scanner assembly (Y/M) ................................................................ 206 Remove the laser/scanner assembly (Y/M) ................................. 206 Laser/scanner assembly (C/Bk) ............................................................... 213 Remove the laser/scanner assembly (C/Bk) ................................ 214 High-voltage power supply upper ............................................................. 221 Remove the high-voltage power supply upper ............................. 221 Drum motor 1 ........................................................................................ 225 Remove the drum motor 1 ........................................................ 225 Drum motor 2 or drum motor 3 ................................................................ 226 Remove the drum motor 2 or drum motor 3 ................................ 226 Fuser motor ........................................................................................... 227 Remove the fuser motor ............................................................ 227 Main-drive assembly ............................................................................... 228 Remove the main-drive assembly ............................................... 229 viii ENWW

HP LaserJet Enterprise 500 color MFP M575 Printers and HP LaserJet Enterprise 500 color flow MFP M575 Printers Service Repair Ma

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