HP DesignJet T920 T1500 service manual (EN)

Designjet T920, T1500 ePrinter Series and T2500, T3500 eMultifunction Series Service Manual

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1 Legal notices Warranty © 2014 Hewlett-Packard Development Company, L.P. This document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewlett-Packard Company. The information contained in this document is subject to change without notice. Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose.

Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material.

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Safety The Warning symbol calls attention to a procedure, practice, or the like, which, if not correctly performed or adhered to, could result in personal injury. Do not proceed beyond a Warning symbol until the indicated conditions are fully understood and met. The Caution symbol calls attention to an operating procedure, practice, or the like, which, if not correctly performed or adhered to, could result in damage to or destruction of part or all of the printer. Do not proceed beyond a Caution symbol until the indicated conditions are fully understood and met.

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Table of contents 1 Printer fundamentals .................................................................................................................................... 1 Introduction ........................................................................................................................................................... 2 Theory of operation ............................................................................................................................................... 5 2 Troubleshooting ..........................................................................................................................................

32 The front panel .................................................................................................................................................... 32 Service keys combination .................................................................................................................................... 35 Troubleshooting tree (T920 and T1500 only) .................................................................................................... 36 Product Troubleshooting trees (T2500 and T3500 only) ...................................................................................

38 Scanner Troubleshooting Tree ............................................................................................................................ 39 Scanner CIS Troubleshooting .............................................................................................................................. 40 Paper handling problems .................................................................................................................................... 41 Ink supply problems ............................................................................................................................................

52 Print-quality problems ........................................................................................................................................ 61 Connectivity problems ......................................................................................................................................... 76 Scanning Problems .............................................................................................................................................. 81 Firmware upgrades ..............................................................................................................................................

83 3 System error codes ...................................................................................................................................... 84 Introduction ......................................................................................................................................................... 85 What to do if the front panel fails to initialize .................................................................................................... 87 System error codes in brief .................................................................................................................................

89 System error codes in full ................................................................................................................................... 92 Appendix A: How to troubleshoot system error 79:04 and 79.2:04 ................................................................ 118 Appendix B: Updating firmware in boot mode .................................................................................................. 129 Appendix C: Obtaining the diagnostics package ...............................................................................................

130 4 Diagnostics, Service Utilities and Calibrations ............................................................................................. 132 Introduction ....................................................................................................................................................... 133 Diagnostic Tests and Utilities ............................................................................................................................ 134 Service Utilities ..................................................................................................................................................

151 Service Calibrations ........................................................................................................................................... 176 ENWW v

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