IF1 service (EN)

hp LaserJet 1150 and hp LaserJet 1300 series service manual

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Copyright Information Trademark Credits 5 Unplug this product from wall outlets before cleaning. © 2003 Hewlett-Packard Company Microsoft, Windows, and MS- DOS are U.S. registered trademarks of Microsoft Corporation. All Rights Reserved. Reproduction, adaptations, or translation without prior written permission is prohibited except as allowed under copyright laws. 6 Do not install or use this product near water or when you are wet. TrueType is a U.S. trademark of Apple Computer, Inc. All other products mentioned herein may be trademarks of their respective companies. 7 Install the product securely on a stable surface.

Part number Q1334-90928 Edition 1, 4/2003 Printed in USA 8 Install the product in a protected location where no one can step on or trip over the power cord and the power cord will not be damaged. 9 If the product does not operate normally, see the online user guide. Warranty The information contained in this document is subject to change without notice. Safety Information WARNING! 10 Refer all servicing questions to qualified personnel. 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.

Potential Shock Hazard Always follow basic safety precautions when using this product to reduce risk of injury from fire or electric shock. Information regarding FCC Class B, Parts 15 and 68 requirements can be found in the user guide. 1 Read and understand all instructions in the user guide. 2 Observe all warnings and instructions marked on the product. 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. 3 Use only a grounded electrical outlet when connecting the printer to a power source.

If you do not know whether the outlet is grounded, check with a qualified electrician. 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.” 4 Do not touch the contacts on the end of any of the sockets on the printer. Replace damaged cords immediately. Hewlett-Packard Company 11311 Chinden Boulevard Boise, Idaho 83714 U.S.A.

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Contents

Contents Figures Tables 1 Product information Chapter contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Firmware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Product specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Model and serial numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . 19 Overview of printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Front and side view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Back and side view. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Warranty statement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Extended warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Limited warranty for print cartridge life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24 Print cartridge information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Print cartridge date stamp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Refilled print cartridges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 HP LaserJet printing supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 HP printing supplies returns and recycling program information . . . . . . . . . 25 Material safety data sheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 2 Installation and operation Chapter contents. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Operating environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Identifying printer components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Printer control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Control panel light patterns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 Selecting media. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Loading media . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . 35 Printer output paths. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 ENWW Contents iii

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Contents

3 Maintenance Chapter contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Life expectancies of components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 User-replaceable parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 Replacing the printer pickup roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Replacing the printer separation pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 Cleaning the equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Cleaning the print path . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Cleaning the print cartridge area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Cleaning the printer pickup roller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Cleaning the printer separation pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 4 Operational overview Chapter contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Basic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Formatter system . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . 55 Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 EconoMode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 MEt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Enhanced I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 PJL overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Printer functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . 58 Engine control unit/power system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Image formation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64 Printer paper-feed system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67 Jam detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Basic sequence of operation (formatter-to-printer) . . . . . . . . . . . . . . . . . . . . 71 5 Removal and replacement Chapter contents. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. 73 Removal and replacement strategy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Required tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 Before performing service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Print cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 Parts removal order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Differences between the printers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Locating the printer differences . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 Covers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Left side cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Back cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 Right side cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84 Top cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 Control panel assembly . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . 88 Front cover assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 iv Contents ENWW

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