HP LaserJet Companion Printer Service Manual (EN)

HP LaserJet Companion Printer Accessory--Service Manual

Service Manual HP LaserJet Companion Printer Accessory (C3989A) Companion (C3079A) Companion SE (C4106A) Companion XI

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HP LaserJet Companion Printer Accessory--Service Manual

Copyright Information © 1997 Hewlett-Packard Company Warranty The information contained in this document is subject to change without notice. WARNING Electrical Shock Hazard All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. To avoid electrical shock, use only supplied power cords and connect only to properly grounded (3-hole) wall outlets. 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. Trademark Credits Microsoft® and Windows® are U.S.

registered trademarks of Microsoft Corporation. PaperPort is a trademark of Visioneer, Inc. in the United States and other countries. OmniPage Professional and OmniPage Lite are U.S. registered trademarks of the Caere Corporation. Part number: C3989-90945 First Edition, March 1997 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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Contents

Contents 1 Product Information Product Description . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 System Requirements . . . . . . . . . . . . . . . . . . . . . . . 1-1 Product Features . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 2 Functional Overview Operation and Timing . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Optical System . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1 Document-Feed System . . . . . . . . . . . . . . . . . . . . . . 2-2 Control Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3 Software . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . 2-4 Installation Software . . . . . . . . . . . . . . . . . . . . . . . . 2-4 The PaperPort Software . . . . . . . . . . . . . . . . . . . . . . 2-4 3 Testing Performing Main Tests . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 System Requirements . . . . . . . . . . . . . . . . . . . . . . . 3-1 Initializing the NVRAM . . . . . . . . . . . . . . . . . . . . . . . 3-1 Calibrating the Companion . . . . . . . . . . . . . . . . . . . . . 3-1 Copying to the Printer . . . . . . . . . . . . . . . . . . . . . . . 3-2 Scanning to the Computer . . . . . . . . . . . . . . . . . . . . . 3-2 Performing Additional Tests . . . . . . . . . . . . . . . . . . . . . .

3-3 Cleaning the HP LaserJet Companion Printer Accessory . . . . . . . 3-4 4 Troubleshooting Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2 Paper Movement . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4 Image Transfer Failures . . . . . . . . . . . . . . . . . . . . . . 4-6 Image Quality Problems . . . . . . . . . . . . . . . . . . . . . . 4-6 5 Removal and Replacement Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . 5-1 Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5-2 Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 6 Parts Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Documentation Part Numbers . . . . . . . . . . . . . . . . . . . 6-1 Upper Cover Assembly . . . . . . . . . . . . . . . . . . . . . . . 6-3 External Covers and Panels . . . . . . . . . . . . . . . . . . . . 6-5 Internal Components . . . . . . . . . . . . . . . . . . . . . . . . 6-7 Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10 Power Supply Modules . . . . . . . . . . . . . . . . . . . . . . 6-10 EN Contents-1

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Contents

A Parts Index List of Figures Figure 4-1, Voltage Test Points . . . . . . . . . . . . . . . . . . . . 4-2 Figure 5-1, Gear Locations . . . . . . . . . . . . . . . . . . . . . . 5-8 Figure 5-1, Image Sensor Connector Wire Routing . . . . . . . . . 5-9 Figure 6-1, Upper Cover Assembly . . . . . . . . . . . . . . . . . . 6-2 Figure 6-2, External Covers and Panels . . . . . . . . . . . . . . . 6-4 Figure 6-3, Internal Components . . . . . . . . . . . . . . . . . . . 6-6 Contents-2 EN

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