LJ3100/3150 Service Manual - English (EN)

HP LaserJet 3100/3150 Product Service Manual

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Copyright Information Warranty Trademark Credits © 2002 Hewlett-Packard Company The information contained in this document is subject to change without notice. JetSuite Pro Desktop for Hewlett-Packard is a trademark of JetFax, Inc. All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited except as allowed under copyright laws. Hewlett-Packard makes no warranty of any kind with respect to this information. HEWLETT-PACKARD SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Microsoft, Windows, and MS-DOS are U.S. registered trademarks of Microsoft Corporation.

Iris is a registered trademark of the Caere Corporation. Part Number: C4256-90954 Second Edition, February 2002 E NERGY S TAR is a U.S. registered service mark of the United States Environmental Protection Agency. Hewlett-Packard shall not be liable for any direct, indirect, incidental, consequential, or other damage alleged in connection with the furnishing or use of this information. CompuServe is a trademark of CompuServe, Inc. All other products mentioned herein may be trademarks of their respective companies. NOTICE TO U.S. GOVERNMENT USERS: RESTRICTED RIGHTS COMMERCIAL COMPUTER SOFTWARE:

“Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in Technical Data Clause at DFARS 52.227-7013.” Material scanned by this product may be protected by governmental laws and other regulations, such as copyright laws. The customer is solely responsible for complying with all such laws and regulations. This product may be serviced only in the country for which it was designed to be used. Hewlett-Packard Company 11311 Chinden Boulevard Boise, Idaho 83714 U.S.A.

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Contents 1 Product Information Chapter contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Product features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Product specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Model and serial numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Product overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Regulatory information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 23 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Laser statement for Finland . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 FCC regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Telephone consumer protection act (U.S.) . . . . . . . . . . . . . . . . 27 IC CS-03 requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Canadian DOC regulations. . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Environmental product stewardship program . . . . . . . . . . . . . .

30 Material safety data sheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 2 Installation and operation Chapter contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 Media requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Toner cartridge information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Storage conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Storing opened toner cartridges . . . . . . . . . . . . . . . . . . . . . . . . 38 Toner Recycling . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Control panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Control panel messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Menu tree . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 3 Maintenance Chapter contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Life expectancies of consumables . . . . . . . . . . . . . . . . . . . . . . . . . 56 Cleaning and maintaining the equipment . . . . . . . . . . . . . . . . . . . . 57 Cleaning the document scanner path . . . . . . . . . . . . . . . . . . . . . .

. 58 Cleaning the print path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Using a cleaning page. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63 EN Contents 3

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4 Functional overview Chapter contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Basic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66 Printer functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 ECU/power system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68 Print engine control system . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Power system (on ECU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Formatter system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

72 Central processing unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Memory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Parallel interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Control panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Draft mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Image formation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Toner cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 Step 1: Primary charging . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . 75 Step 2: Scanning exposure. . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Step 3: Developing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Step 4: Transferring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Step 5: Separating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Step 6: Drum cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Fixing stage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Printer feed system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Paper jam detection . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 Solenoid, photosensors, and switches . . . . . . . . . . . . . . . . . . . 80 Document scanner system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Basic sequence of operation (formatter-to-printer) . . . . . . . . . . . . . 83 5 Removal and replacement Chapter contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 Removal and replacement strategy. . . . . . . . . . . . . . . . . . . . . . . . . 86 Required tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Covers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . 88 Back cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88 Right side cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 Left side cover. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Left front cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 Top cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 RFI shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 Document scanner assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Printer door . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Document release door. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Upper guide assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 Contact image sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 Document scanner assembly/motor . . . . . . . . . . . . . . . . . . . . 104 Document scanner pickup roller . . . . . . . . . . . . . . . . . . . . . . . 106 4 Contents EN

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