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May 1999 Edition HP Color LaserJet Family Quick Reference Service Guide HP Color LaserJet Family Quick Reference Service Guide May 1999 Edition © Copyright Hewlett-Packard Company 1999 All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. Publication number 5090-3391 First edition, May 1999 Warranty The information contained in this document is subject to change without notice. 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. 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. Trademark credits AdobeTM and PostScriptTM are registered trademarks of Adobe Systems, Inc., which may be registered in certain jurisdictions. Microsoft® is a U.S. registered trademark of Microsoft Corporation. MS-DOS® is a U.S. registered trademark of Microsoft Corporation. UNIX® is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company Limited. Hewlett-Packard Company 11311 Chinden Boulevard Boise, Idaho 83714 U.S.A. Contents 1 2 3 4 5 6 7 8 9 Troubleshooting control panel messages . . . . . . . . . . . . . 1 Service tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Input/Output (I/O) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Media specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Toner cartridge information . . . . . . . . . . . . . . . . . . . . . . 85 Printer options and consumables . . . . . . . . . . . . . . . . . . 97 Printer parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103 Image quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 10 Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 11 Services and support resources . . . . . . . . . . . . . . . . . 171 A Acronyms and abbreviations . . . . . . . . . . . . . . . . . . . . 183 Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185 EN iii Ordering other manuals This HP Color LaserJet Family Quick Reference Service Guide has been created to help the HP LaserJet service engineer quickly troubleshoot common printer problems. While this reference is intended to provide information the service engineer will need for on-site repair of HP LaserJet color products, it is not intended to replace the service manual for any HP LaserJet color product. For detailed information about the HP LaserJet color products described in this guide, see the user guide or service manual for that product. Service manuals for HP LaserJet products are availabl