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HP COLOR LASERJET ENTERPRISE CP5520
PRINTER SERIES
Service Manual
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HP Color LaserJet Enterprise CP5520 Printer Series Service Manual
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Copyright and License Trademark Credits ® ® ® © 2010 Copyright Hewlett-Packard Adobe , Acrobat , and PostScript are Development Company, L.P. trademarks of Adobe Systems Incorporated. Reproduction, adaptation, or translation Corel® is a trademark or registered without prior written permission is trademark of Corel Corporation or Corel prohibited, except as allowed under the Corporation Limited. copyright laws. Microsoft®, Windows®, Windows® XP, The information contained herein is subject and Win
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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 Theory of operation .......................................................................................................... 1 Basic operation ........................................................................................................................ 2 Major product systems ............................................................................................... 2 Product block diagram .....................................................................
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Latent-image formation block ..................................................................... 29 Pre-exposure ............................................................................. 29 Primary charging ...................................................................... 29 Laser beam exposure ................................................................. 30 Developing block ..................................................................................... 31 Transfer block ...
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Media detection ....................................................................................... 58 Feed-speed control ................................................................................... 59 Fusing and delivery block ......................................................................................... 59 Loop control ............................................................................................ 59 Pressure roller pressurization and depressurization control
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Pickup roller (Tray 2) ............................................................................................... 98 Pickup roller, separation roller, and feed roller (1 x 500-sheet and 3 x 500-sheet paper feeders) ................................................................................................................. 99 Secondary transfer roller ........................................................................................ 101 Intermediate transfer belt (ITB) ...........
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Install the main drive assembly .................................................. 167 Fuser drive assembly .............................................................................. 172 Remove the fuser drive assembly ............................................... 172 Install a replacement fuser drive assembly .................................. 174 Fuser gear assembly ............................................................................... 176 Remove the fuser gear assembly ........
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Remove the second transfer high-voltage power supply ................ 216 Driver PCA ............................................................................................ 218 Remove the driver PCA ............................................................ 218 Power switch PCA .................................................................................. 220 Remove the power switch PCA .................................................. 220 Environmental sensor .......................
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Control panel menus .............................................................................................. 257 Sign In menu ........................................................................................................ 257 Retrieve Job From USB menu .................................................................................. 257 Retrieve Job From Device Memory menu .................................................................. 257 Supplies menu .......................
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TOP (top-of-page) sensor (PS5) .................................................. 294 Fuser loop sensors 1 and 2 (PS7 and PS8) ................................. 295 Fuser pressure-release sensor (PS9) ............................................ 296 Fuser output sensor (PS6) .......................................................... 297 Developer alienation sensor (PS11) ........................................... 298 ITB alienation switch (SW5) ..................................................
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DC controller connections ......................................................... 322 Product connections ................................................................. 324 Locations of major components ................................................................ 331 General timing charts ............................................................................. 338 General circuit diagram .......................................................................... 340 Internal print-q
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10.0X.Y0 Supply memory error ............................................................... 411 10.22.50 .............................................................................................. 412 10.22.51 .............................................................................................. 412 10.22.52 .............................................................................................. 412 10.23.50 ......................................................................
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41.07.YZ Error To continue, press OK ...................................................... 434 42.XX.YY .............................................................................................. 436 47.00.XX .............................................................................................. 436 47.01.XX .............................................................................................. 436 47.02.XX .......................................................................
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99.00.10 Upgrade canceled by user ....................................................... 457 99.00.11 Upgrade canceled by user ....................................................... 457 99.00.12 Upgrade not performed the file is invalid ................................... 457 99.00.13 Upgrade not performed the file is invalid ................................... 458 99.00.14 Upgrade not performed the file is invalid ................................... 458 99.00.2X ..............................
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Close upper right door For help press ? .................................................... 468 Cooling device ...................................................................................... 468 Creating cleaning page .......................................................................... 469 Data received To print last page, press OK ............................................... 469 EIO disk initializing .........................................................................
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Printing Font List... .................................................................................. 479 Printing Fuser Test Page... ....................................................................... 479 Printing Help Page... .............................................................................. 479 Printing Menu Map... ............................................................................. 479 Printing PQ Troubleshooting... ................................................
