Hp Laserjet Pro 200 Color, M251n M251nw Full Repair, Troubleshooting & Parts List Manual

LASERJET PRO 200 COLOR Troubleshooting Manual M251n M251nw

HP LaserJet Pro 200 color M251 Series Printer Troubleshooting 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: CF146-90968 Edition 1, 9/2012 Trademark Credits Microsoft®, Windows®, Windows® XP, and Windows Vista® are U.S. registered trademarks of Microsoft Corporation. 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

Table of contents 1 Theory of operation .......................................................................................................... 1 Basic operation ........................................................................................................................ 2 Major product systems ............................................................................................... 2 Product components .................................................................................................. 3 Sequence of operation ............................................................................................... 4 Engine control system ............................................................................................................... 5 DC controller ............................................................................................................ 6 Low-voltage power supply .......................................................................................... 7 High-voltage power supply ......................................................................................... 8 Laser/scanner system ............................................................................................................... 9 Laser failure detection ................................................................................................ 9 Image-formation system ........................................................................................................... 10 Image-formation process .......................................................................................... 10 Latent-image formation stage .................................................................................... 11 Step 1: primary charging .......................................................................... 12 Step 2: laser-beam exposure ..................................................................... 12 Developing stage .................................................................................................... 12 Step 3: development ................................................................................. 13 Transfer stage ......................................................................................................... 14 Step 4: primary transfer ............................................................................ 14 Step 5: secondary transfer ......................................................................... 14 Step 6: separation from the ITB .................................................................. 15 Fusing stage ........................................................................................................... 15 Step 7: fusing .......................................................................................... 15 ITB cleaning stage ................................................................................................... 16 Step 8: ITB cleaning ................................................................................. 16 Drum cleaning stage ................................................................................................ 17 Step 9: drum cleaning .............................................................................. 17 Pickup-and-feed system ........................................................................................................... 18 Jam detection ......................................................................................................... 19 USB flash drive ...................................................................................................................... 20 ENWW v

2 Solve problems ............................................................................................................... 21 Solve problems checklist ......................................................................................................... 22 Menu map ............................................................................................................................ 24 Print a menu map (LCD control panel) ........................................................................ 24 Print a menu map (touchscreen control panel) ............................................................. 24 Troubleshooting process .......................................................................................................... 25 Pre-troubleshooting checklist ..................................................................................... 25 Power-on checks ..................................................................................................... 27 Tools for troubleshooting ......................................................................................................... 28 Component diagnostics ............................................................................................ 28 LED diagnostics ........................................................................................ 28 Network LEDs ........................................................................... 28 Control panel LEDs .................................................................... 29 Control-panel diagnostics .......................................................................... 30 Engine diagnostics ................................................................................... 30 Engine test ................................................................................ 30 Diagrams ............................................................................................................... 31 Plug/jack locations ................................................................................... 31 DC controller PCA .................................................................................... 32 Locations of major components .................................................................. 34 General timing chart ................................................................................. 36 General circuit diagram ............................................................................ 37 Internal print-quality test pages .................................................................................. 38 Interpret the Print Quality Page ................................................................... 38 Print a cleaning page ............................................................................... 38 Print a cleaning page (LCD control panel) .................................... 39 Print a cleaning page (touchscreen control panel) .......................... 39 Configuration page .................................................................................. 39 Print a configuration page (LCD control panel) .............................. 39 Print a configuration page (touchscreen control panel) ................... 40 Print-quality troubleshooting tools .............................................................................. 41 Repetitive image defects ............................................................................ 41 Calibrate the product to align the colors ...................................................... 41 Control-panel menus ................................................................................................ 42 Setup Menu ............................................................................................. 42 HP Web Services ...................................................................... 42 Reports menu ............................................................................ 43 Self Diagnostics menu ................................................................ 44 System Setup menu .................................................................... 45 Service menu ............................................................................ 48 Network Setup menu ................................................................. 50 vi ENWW

Quick Forms menu .................................................................... 51 Function specific menus ............................................................................. 52 Apps ....................................................................................... 52 USB Flash Drive ........................................................................ 52 Interpret control panel messages ............................................................................... 53 Control panel message types ..................................................................... 53 Control panel messages ............................................................................ 53 10.X00Y Supply Error ................................................................ 53 49 Error, Turn off then on ........................................................... 54 50.x Fuser Error ........................................................................ 54 51.XX Error .............................................................................. 54 54.XX Error .............................................................................. 54 55.X Error ................................................................................ 55 57 Fan Error, Turn off then on ..................................................... 55 59.X Error ................................................................................ 55 79 Error Turn off then on ............................................................ 56 Black Cartridge Low .................................................................. 56 Black in wrong position .............................................................. 56 Black Very Low ......................................................................... 56 Cleaning .................................................................................. 57 Cyan Cartridge Low .................................................................. 57 Cyan in wrong position .............................................................. 57 Cyan Very Low ......................................................................... 57 Device error, press OK .............................................................. 58 Door open ................................................................................ 58 Genuine HP supply installed ....................................................... 58 Incompatible <color> ................................................................. 58 Incorrect supplies ...................................................................... 58 Install <color> cartridge ............................................................. 59 Invalid driver Press [OK] ............................................................ 59 Jam in Tray 1, Clear jam and then press OK ................................ 59 Load tray 1 Press [OK] for available media .................................. 59 Load Tray 1 <TYPE> <SIZE>, Press OK to use available media ....... 59 Load Tray 1, <PLAIN> <SIZE> / Cleaning mode, OK to start ......... 59 Magenta Cartridge Low ............................................................. 60 Magenta in wrong position ........................................................ 60 Magenta Very Low .................................................................... 60 Manual Duplex Load Tray 1, Press OK ........................................ 60 Memory is low. Press OK. .......................................................... 61 Misprint, Press OK ..................................................................... 61 Print failure, press OK. If error repeats, turn off then on. ................. 61 ENWW vii

Rear door open ......................................................................... 61 Remove shipping lock from <color> cartridge ............................... 62 Remove shipping locks from cartridges ........................................ 62 Replace <color> ....................................................................... 62 Supplies low ............................................................................. 62 Unexpected size in tray 1 Load <size> Press [OK] ........................ 62 Unsupported <color> Press [OK] to continue .............................. 0 Used <color> in use ............................................................... 0 Used <color> installed, to accept press OK ............................... 0 Used supplies in use ............................................................... 0 Yellow Cartridge Low ............................................................. 0 Yellow in wrong position ......................................................... 0 Yellow Very Low .................................................................... 0 Event-log messages ............................................................................................... 0 Clear jams ......................................................................................................................... 0 Jam locations ....................................................................................................... 0 Clear jams in the paper input tray .......................................................................... 0 Clear jams from the output bin ............................................................................... 0 Clear jams from the rear door ................................................................................ 0 Solve paper-handling problems ............................................................................................. 0 The product picks up multiple sheets of paper .......................................................... 0 The product does not pick up paper ....................................................................... 0 Solve image quality problems ............................................................................................... 0 Use the correct paper type setting in the printer driver .............................................. 0 Change the paper type setting for Windows ............................................. 0 Change the paper type setting for Mac .................................................... 0 Adjust color settings in the printer driver .................................................................. 0 Change the color theme for a print job .................................................... 0 Change the color options ....................................................................... 0 Use paper that meets HP specifications ................................................................... 0 Print a cleaning page ........................................................................................... 0 Print a cleaning page (LCD control panel) ................................................ 0 Print a cleaning page (touchscreen control panel) ...................................... 0 Calibrate the product to align the colors .................................................................. 0 Check the toner cartridges ..................................................................................... 0 Print the Supplies Status page ................................................................. 0 Inspect the print cartridge for damage ..................................................... 0 Repeating defects .................................................................................. 0 Use the printer driver that best meets your printing needs .......................................... 0 Solve performance problems ................................................................................................ 0 Factors affecting print performance ........................................................................ 0 viii ENWW

Print speeds ............................................................................................. 84 The product does not print or it prints slowly ............................................................... 85 The product does not print ......................................................................... 85 The product prints slowly ........................................................................... 86 Solve product connectivity problems ......................................................................................... 87 Solve direct-connect problems ................................................................................... 87 Solve network problems ........................................................................................... 87 Poor physical connection ........................................................................... 87 The computer is using the incorrect IP address for the product ........................ 87 The computer is unable to communicate with the product .............................. 88 The product is using incorrect link and duplex settings for the network ............ 88 New software programs might be causing compatibility problems .................. 88 The computer or workstation might be set up incorrectly ................................ 88 The product is disabled, or other network settings are incorrect ...................... 88 Solve wireless network problems ............................................................................... 89 Wireless connectivity checklist ................................................................... 89 The control panel displays the message: The wireless feature on this product has been turned off .................................................................................. 90 The product does not print after the wireless configuration completes .............. 90 The product does not print, and the computer has a third-party firewall installed .................................................................................................. 90 The wireless connection does not work after moving the wireless router or product ................................................................................................... 90 Cannot connect more computers to the wireless product ................................ 91 The wireless product loses communication when connected to a VPN ............. 91 The network does not appear in the wireless networks list ............................. 91 The wireless network is not functioning ........................................................ 92 Service mode functions ........................................................................................................... 93 Service menu .......................................................................................................... 93 Service menu settings ................................................................................ 93 Restore the factory-set defaults ................................................................... 93 Restore the factory-set defaults (LCD control panel) ......................... 94 Restore the factory-set defaults (touchscreen control panel) .............. 94 Secondary service menu .......................................................................................... 94 Open the secondary service menu (LCD control panel) .................................. 94 Open the secondary service menu (touchscreen control panel) ....................... 94 Secondary service menu structure ............................................................... 95 Engine resets .......................................................................................................... 96 Engine test page ...................................................................................... 96 Cold reset ............................................................................................... 96 NVRAM initialization ................................................................................ 96 ENWW ix

Product updates ..................................................................................................................... 97 Appendix A Service and support ....................................................................................... 99 Hewlett-Packard limited warranty statement ............................................................................. 100 HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement .................. 102 Data stored on the print cartridge ........................................................................................... 103 End User License Agreement .................................................................................................. 104 OpenSSL ............................................................................................................................. 106 Customer support ................................................................................................................. 107 Repack the product .............................................................................................................. 108 Appendix B Product specifications ................................................................................... 109 Physical specifications .......................................................................................................... 110 Power consumption, electrical specifications, and acoustic emissions .......................................... 110 Environmental specifications .................................................................................................. 110 Appendix C Regulatory information ................................................................................. 111 FCC regulations ................................................................................................................... 112 Environmental product stewardship program ........................................................................... 113 Protecting the environment ...................................................................................... 113 Ozone production ................................................................................................. 113 Power consumption ............................................................................................... 113 Paper use ............................................................................................................. 113 Plastics ................................................................................................................. 113 HP LaserJet print supplies ....................................................................................... 113 Return and recycling instructions ............................................................................. 114 United States and Puerto Rico .................................................................. 114 Multiple returns (more than one cartridge) .................................. 114 Single returns .......................................................................... 114 Shipping ................................................................................ 114 Non-U.S. returns .................................................................................... 115 Paper .................................................................................................................. 115 Material restrictions ............................................................................................... 115 Disposal of waste equipment by users in private households in the European Union ...... 115 Chemical substances ............................................................................................. 115 Material Safety Data Sheet (MSDS) ......................................................................... 116 For more information ............................................................................................. 117 Declaration of conformity ...................................................................................................... 118 Declaration of conformity (wireless model) .............................................................................. 120 Certificate of Volatility .......................................................................................................... 122 x ENWW

Hp Laserjet Pro 200 Color, M251n M251nw Full Repair, Troubleshooting & Parts List Manual

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