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LASERJET PRO 300 COLOR MFP
LASERJET PRO 400 COLOR MFP
Service Manual
M375
M475
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HP LaserJet Pro 300 color MFP M375 and HP LaserJet Pro 400 color MFP M475 Printers Service Manual
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Copyright and License Trademark Credits © 2012 Copyright Hewlett-Packard Microsoft®, Windows®, Windows® XP, Development Company, L.P. and Windows Vista® are U.S. registered trademarks of Microsoft Corporation. Reproduction, adaptation, or translation without prior written permission is ENERGY STAR and the ENERGY STAR mark prohibited, except as allowed under the are registered U.S. marks. copyright laws. The information contained herein is subject to change without notice. The only warranties for
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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
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iv Conventions used in this guide ENWW
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Table of contents 1 Removal and replacement .................................................................................................................... 1 Removal and replacement strategy ............................................................................................. 2 Introduction .............................................................................................................. 2 Removal and replacement strategy ................................................
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Rear-door stopper and link caps (simplex product) ........................................ 32 Rear door (simplex product) ....................................................................... 33 Rear door (duplex product) ........................................................................ 35 Rear cover and feed guide (simplex product) ............................................... 37 Remove the rear cover and feed guide (simplex product) ................ 37 Rear-lower cover and rear-door
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Remove the USB PCA ................................................................ 96 Duplex-reverse drive assembly ................................................................... 97 Remove the duplex-reverse drive assembly .................................... 97 Fuser .................................................................................................... 100 Remove the fuser ..................................................................... 101 Reinstall the fuser .........
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Internal print quality test pages ............................................................................... 135 Print quality troubleshooting page ............................................................ 135 Print quality assessment page .................................................................. 135 Print the Configuration Page .................................................................... 135 Service page ..................................................................
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Device error, press OK ............................................................ 162 Device is busy. Try again later .................................................. 162 Document feeder door is open. ................................................. 162 Document feeder jam. Clear and reload. ................................... 162 Document feeder mispick. Reload .............................................. 163 Door open .....................................................................
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Remove shipping locks from cartridges ...................................... 172 Replace [color] ....................................................................... 172 Scanner error #, Turn off then on .............................................. 172 Scanner reserved for PC scan ................................................... 173 Scanning error Cannot connect ................................................. 173 Settings cleared ........................................................
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Print speeds ........................................................................................... 203 The product does not print or it prints slowly ............................................................. 204 The product does not print ....................................................................... 204 The product prints slowly ......................................................................... 205 Solve product connectivity problems ...................................
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Fax is busy. Canceled send. .................................................................... 217 Fax is busy. Redial pending. .................................................................... 218 Fax receive error. ................................................................................... 218 Fax Send error. ...................................................................................... 219 Fax storage is full. Canceling the fax receive. ...................................
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The fax does not respond ........................................................................ 234 The fax has a dedicated phone line ........................................... 234 An answering machine is connected to the product ..................... 234 A telephone handset is connected to the product ......................... 235 The Answer Mode setting is set to the Manual setting ................... 235 Voice mail is available on the fax line ........................................ 235
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Internal assemblies (5 of 5) ..................................................................................... 262 Internal assemblies (simplex models) ........................................................................ 264 Internal assemblies (duplex models) ......................................................................... 266 PCAs ................................................................................................................... 268 Input device(s) ............
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Disposal of waste equipment by users in private households in the European Union ...... 295 Chemical substances ............................................................................................. 296 Material Safety Data Sheet (MSDS) ......................................................................... 296 For more information ............................................................................................. 297 Declaration of conformity .................................
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Index ................................................................................................................................................. 313 xvi ENWW
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List of tables Table 1-1 Common fasteners ................................................................................................................. 4 Table 2-1 Major components ............................................................................................................. 121 Table 2-2 Solenoid, sensors, and motors .............................................................................................. 123 Table 2-3 Rollers .......................................
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xviii ENWW
