© Copyright Hewlett-Packard Company 1998 Warranty WARNING The information contained in this document is subject to change without notice. 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 or merchantability and fitness for a particular purpose.

Adobe and PostScript are trademarks of Adobe Systems Incorporated which may be registered in certain jurisdictions. Publication number C4085-91087 First edition, November 1998 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. Windows is a U.S. registered trademark of Microsoft Corporation. Hewlett-Packard Company 11311 Chinden Boulevard Boise, Idaho 83714 U.S.A.

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Conventions This manual uses the following conventions: The names of major printer parts and assemblies are Capitalized. Color is used to emphasize items which are important to the material under discussion. Bold is used for emphasis, particularly in situations where italic type would be confusing. Italic type is used to indicate related documents or emphasis. Note Notes contain important information set off from the text. CAUTION Caution messages alert you to the possibility of damage to equipment or loss of data. WARNING! Warning messages alert you to the possibility of personal injury.

The illustration below shows the orientation of the paper-handling accessories as they are referred to in this publication. C4085-91087 iii

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Chapter Descriptions 1 Product Information Contains printer features and product overview, tray capacities and sizes, media specifications, service approach, how to get technical assistance, and required safety and compliance statements. 2 Site Requirements Contains space and environmental requirements. 3 Operating Overview Contains details about control panel menus, restoring factory defaults, and resetting and testing the printer. 4 Maintenance and Adjustments Contains cleaning and preventive maintenance information, and adjustment procedures for paper trays.

5 Functional Overview Contains block diagrams and basic theory of operation for the printer systems, paper paths, and paper handling accessories. Contains basic cabling information. 6 Removal and Replacement Contains step-by-step procedures for replacing field replaceable units (FRUs) in the printer and paper-handling accessories. 7 Troubleshooting Contains a preliminary troubleshooting table, a table with descriptions and recommended actions for all control panel messages, image defect samples, and troubleshooting checks and tools. iv C4085-91087

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