HP P3015 Service Manual
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HP LaserJet P3010 Series Printers Service Manual Additional product information: www.hp.com/support/ljp3010series
Copyright and License © 2009 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: CE524-90909 Edition 1, 7/2009 Trademark Credits Adobe ® is a trademark of Adobe Systems Incorporated. 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 operationBasic operation ............................................................................................................... ...................... 2 Major printer systems ......................................................................................................... . 2 Printer block diagram ......................................................................................................... .. 2 Sequence of operation ......................................................................................................... 3 Normal sequence of operation ............................................................................ 3 Formatter-control system ...................................................................................................... ............... 4 Sleep mode .................................................................................................................... ...... 4 Input/output .................................................................................................................. ........ 4 CPU ..................................................................................................................................... 4 Memory ................................................................................................................................ 5 Optional hard disk ............................................................................................... 5 Firmware ............................................................................................................. 5 Nonvolatile memory ............................................................................................ 5 PJL overview .................................................................................................................. ..... 5 PML ..................................................................................................................................... 5 Control panel ................................................................................................................. ...... 5 Engine-control system ......................................................................................................... ................. 6 Motors, fans, clutches, solenoids, switches, and sensors ................................................... 7 DC controller operations .................................................................................................... 1 4 Fuser-control circuit ......................................................................................................... .. 16 Fuser failure detection ....................................................................................... 17 Fuser temperature control ................................................................................. 18 Fuser protective function ................................................................................... 19 Low-voltage power supply ................................................................................................. 20 Overcurrent/overvoltage protection ................................................................... 21 High-voltage power supply ................................................................................................ 22 Formatter ..................................................................................................................... ...... 23 Formatter heartbeat LED .................................................................................. 23 DIMM slots ........................................................................................................ 23 Laser/scanner system ........................................................................................................ 2 4 Laser failure detection ....................................................................................... 25 Image-formation system ........................................................................................................ ............. 26 Electrophotographic process ............................................................................................. 26 ENWW v
Image formation process ................................................................................................... 27Latent-image formation stage ........................................................................... 28Primary charging .............................................................................. 28 Laser beam exposure ....................................................................... 28 Developing stage .............................................................................................. 29 Print cartridge ................................................................................... 29 Transfer stage ................................................................................................... 30 Fusing stage ..................................................................................... 30 Cleaning stage .................................................................................. 31 Toner detection .................................................................................................................. 32 Pickup, feed, and delivery system ............................................................................................. ......... 33 Paper trays ................................................................................................................... ..... 33 Photo sensors and switches .............................................................................................. 34 Solenoids and clutches ...................................................................................................... 3 6 Tray 1 or Tray 2 .................................................................................................................................. 38 Pickup and feed unit .......................................................................................................... 38 Cassette paper size detection/cassette paper detection ................................... 38 Cassette pickup ................................................................................................. 38 Tray 1 paper pickup ........................................................................................................... 38 Paper pickup and feed ....................................................................................................... 3 9 Jam detection ................................................................................................................. ... 40 Additional tray ............................................................................................................... ...................... 41 Tray driver PCA ............................................................................................................... .. 41 Paper pickup and feed ....................................................................................................... 4 2 Media level and size detection ........................................................................................... 43 Jam detection ................................................................................................................. ... 43 2 Removal and replacement Removal and replacement strategy ............................................................................................. ...... 46 General cautions during removal and replacement ........................................................... 46 Electrostatic discharge ...................................................................................... 46 Required tools ................................................................................................... 46 Types of screws ................................................................................................ 47 Service approach .............................................................................................................. ................. 48 Before performing service .................................................................................................. 48 After performing service ..................................................................................................... 48 Post-service test ............................................................................................................. ... 48 Print-quality test ................................................................................................ 48 Parts removal order ........................................................................................................... 50 Removal and replacement procedures ............................................................................................ .. 52 Print cartridge, cassettes, and sub cover ........................................................................... 52 Print cartridge .................................................................................................... 52 Tray cassette (Tray 2, Tray 3, or Tray 4) .......................................................... 54 vi ENWW
Sub cover .......................................................................................................... 55 External panels, covers, doors, formatter PCA, DIMM, and EIO disk ............................... 56 EIO disk ............................................................................................................. 56 DIMM cover and DIMM ..................................................................................... 57Reinstall the DIMM ........................................................................... 58 Formatter cover and formatter PCA .................................................................. 60 Rear-door assembly .......................................................................................... 62 Left cover .......................................................................................................... 66 Right-rear cover ................................................................................................ 68 Tray 1 (multipurpose tray) cover ....................................................................... 69 Cartridge-door assembly ................................................................................... 71 Top-right cover .................................................................................................. 73 Control panel ..................................................................................................... 74 Front-right and right-side cover assembly ......................................................... 76 Lower-right cover and bracket ........................................................................... 80 Reinstall the lower-right cover .......................................................... 82 Top cover .......................................................................................................... 84 Main assemblies ............................................................................................................... . 86 Tray 1 (multipurpose tray) pickup roller ............................................................. 86 Tray 1 (multipurpose tray) separation pad ........................................................ 87 Tray 2, Tray 3, or Tray 4 pickup roller ............................................................... 88 Tray 2, Tray 3, or Tr ay 4 separation pad ........................................................... 90 Tray 2, Tray 3, or Tray 4 base-plate roller assembly ........................................ 91 Transfer roller .................................................................................................... 92 USB port PCA ................................................................................................... 94 Power-switch assembly ..................................................................................... 96 Main fan, fan duct, and environmental sensor .................................................. 98 Fuser ............................................................................................................... 100 Registration assembly ..................................................................................... 102 Duplex media-feed assembly .......................................................................... 104 Laser/scanner ................................................................................................. 107 Engine control unit (ECU) ............................................................................... 110 Cassette pickup (Tray 2) solenoid or Tray 1 (multipurpose tray) pickup solenoid ........................................................................................................... 115 Fuser motor ..................................................................................................... 117 Sub fan and fan duct ....................................................................................... 118 High-voltage power supply (HVPS) ................................................................. 121 3 Solve problems Solve problems checklist ...................................................................................................... ............ 128 Menu map ...................................................................................................................... .................. 130 Troubleshooting process ....................................................................................................... ........... 131 Determine the problem source ........................................................................................ 131 Power subsystem ............................................................................................................ 13 2 ENWW vii
Power-on checks ............................................................................................. 132 Tools for troubleshooting ..................................................................................................... ............. 133 Individual component diagnostics .................................................................................... 133 LED diagnostics .............................................................................................. 133LED indicators ................................................................................ 133 Formatter heartbeat LED ................................................................ 133 HP Jetdirect LEDs .......................................................................... 134 Engine diagnostics .......................................................................................... 134 Engine-test button .......................................................................... 134 Fuser test page ............................................................................................... 135 Paper-path test (and automatic sensors test) ................................................. 136 Sensor test (interactive) .................................................................................. 137 A TOP (Top-of-Page) sensor .......................................................... 140 B Fuser output sensor .................................................................... 141 C Duplex sensor ............................................................................. 142 D Paper width sensor 1 .................................................................. 143 E Tray 3 feed sensor ...................................................................... 144 F Tray 4 feed sensor ...................................................................... 145 G FD tray full sensor ....................................................................... 146 H Face up detect sensor ................................................................ 147 I Cartridge-door open switch .......................................................... 148 J Rear cover open sensor .............................................................. 149 K Tray 1 paper sensor .................................................................... 150 L Tray 2 paper sensor .................................................................... 151 M Tray 2 detect switch .................................................................... 152 N Tray 3 paper sensor .................................................................... 153 O Tray 3 detect switch .................................................................... 154 P Tray 4 paper sensor .................................................................... 155 Q Tray 4 detect switch .................................................................... 156 Print/stop test .................................................................................................. 157 Component tests ............................................................................................. 158 Half self-test .................................................................................... 158 Drum rotation test check ................................................................. 158 Diagnostics menu components test ................................................ 158 Diagrams ...................................................................................................................... ... 160 Block diagrams ................................................................................................ 160 Plug/jack locations .......................................................................................... 162 Location of connectors .................................................................................... 163 ECU controller connections ............................................................ 163 Locations of major components ...................................................................... 165 General timing charts ...................................................................................... 169 General circuit diagram ................................................................................... 170 Internal print quality test pages ........................................................................................ 171 Cleaning page ................................................................................................. 172 viii ENWW