Phaser 8400, 8500-8550

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Phaser 8400/8500/8550 Color PrinterService Manual

Warning The following servicing instructions are for use by qualified service personnel only. To avoid personal injury, do not perform any servicing other than that contained in the operating instructions, unless you are qualified to do so. December, 2005 721P58550

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Copyright 2005 Xerox Corporation. All Rights Reserved. Unpublished rights reserved under the copyright laws of the United States. Contents of this publication may not be reproduced in any form without permission of Xerox Corporation. Copyright protection claimed includes all forms of matters of copyrightable materials and information now allowed by statutory or judicial law or hereinafter granted, including without limitation, material generated from the software programs which are displayed on the screen such as styles, templates, icons, screen displays, looks, etc. XEROX, The Document Company, the digital X, CentreWare, FinePoint, infoSMART, Made For Each Other, PagePack, Phaser, PhaserSMART, TekColor, and Walk-Up are trademarks of Xerox Corporation in the United States and/or other countries. Acrobat, Adobe Reader, Adobe Type Manager, ATM, Illustrator, PageMaker, Photoshop, PostScript, Adobe Brilliant Screens, Adobe Garamond, Adobe Jenson, Birch, Carta, IntelliSelect, Mythos, Quake, and Tekton are trademarks of Adobe Systems Incorporated in the United States and/or other countries. Apple, AppleTalk, EtherTalk, LaserWriter, LocalTalk, Macintosh, Mac OS, TrueType, Apple Chancery, Chicago, Geneva, Monaco, New York , and QuickDraw are trademarks of Apple Computer, Inc. in the United States and/or other countries. HP-GL, HP-UX, and PCLare trademarks of Hewlett-Packard Corporation in the United States and/or other countries. IBM and AIX are trademarks of International Business Machines Corporation in the United States and/ or other countries. Windows, Windows NT, Windows Server, and Wingdings are trademarks of Microsoft Corporation in the United States and/or other countries. Novell, NetWare, NDPS, NDS, Novell Directory Services , IPX, and Novell Distributed Print Servicesare trademarks of Novell, Incorporated in the United States and/or other countries. SunSM, Sun Microsystems, and Solaris are trademarks of Sun Microsystems, Incorporated in the United States and/or other countries. SWOP is a trademark of SWOP, Inc. UNIX is a trademark in the United States and other countries, licensed exclusively through X/Open Company Limited. As an ENERGY STAR partner, Xerox Corporation has determined that this product with an ES Option meets the ENERGY STAR guidelines for energy efficiency. The ENERGY STAR name and logo are registered U.S. marks.

PANTONE Colors generated may not match PANTONE-identified standards. Consult current PANTONE Publications for accurate color. PANTONE and other Pantone, Inc. trademarks are the property of Pantone, Inc. Pantone, Inc., 2000.

User Safety SummaryTerms in ManualCaution Conditions that can result in damage to the product. Warning Conditions that can result in personal injury or loss of life. Power source: For 110 VAC printers, do not apply more than 130 volts RMS between the supply conductors or between either supply conductor and ground. Use only the specified power cord and connector. For 220 VAC printers, do not apply more than 250 volts RMS between the supply conductors or between either supply conductor and ground. Use only the specified power cord and connector. Refer to a qualified service technician for changes to the cord or connector. Operation of product: Avoid electric shock by contacting a qualified service technician to replace fuses inside the product. Do not operate without the covers and panels properly installed. Do not operate in an atmosphere of explosive gases. Warning Turning the power off using the On/Off switch does not de-energize the printer. You must remove the power cord to disconnect the printer from the mains. Keep the power cord accessible for removal in case of an emergency. Safety instructions: Read all installation instructions carefully before you plug the product into a power source. Terms on Product Warning A personal injury hazard exists that may not be apparent. For example, a panel may cover the hazardous area. Also applies to a hazard to property including the product itself. Warning Personal injury hazard exists in the area where you see the sign. Care of product: Disconnect the power plug by pulling the plug, not the cord. Disconnect the power plug if the power cord or plug is frayed or otherwise damaged, if you spill anything into the case, if product is exposed to any excess moisture, if product is dropped or damaged, if you suspect that the product needs servicing or repair, and whenever you clean the product.

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Ground the product: Plug the three-wire power cord (with grounding prong) into grounded AC outlets only. If necessary, contact a licensed electrician to install a properly grounded outlet. Symbols as marked on product: DANGER high voltage:

Protective ground (earth) terminal:

Use caution. Refer to the manual(s) for information:

WARNING: If the product loses the ground connection, usage of knobs and controls (and other conductive parts) can cause an electrical shock. Electrical product may be hazardous if misused.

Service Safety SummaryFor qualified service personnel only: Refer also to the preceding Users Safety Summary. Do not service alone: Do not perform internal service or adjustment of this product unless another person capable of rendering first aid or resuscitation is present. Use care when servicing with power on: Dangerous voltages may exist at several points in this product. To avoid personal injury, do not touch exposed connections and components while power is on. Disconnect power before removing the power supply shield, soldering, or replacing components. Do not wear jewelry: Remove jewelry prior to servicing. Rings, necklaces, and other metallic objects could come into contact with dangerous voltages and currents. Power source: This product is intended to operate from a power source that will not apply more than 250 volts rms between the supply conductors or between either supply conductor and ground. A protective ground connection by way of the grounding conductor in the power cord is essential for safe operation.

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Phaser 8400/8500/8550 Color Printer

Regulatory SpecificationsUnited StatesXerox has tested this product to electromagnetic emission and immunity standards. These standards are designed to mitigate interference caused or received by this product in a typical office environment.

United States (FCC Regulations)This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If it is not installed and used in accordance with these instructions, it may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiver. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/television technician for help.

Any changes or modifications not expressly approved by Xerox could void the user's authority to operate the equipment. To ensure compliance with Part 15 of the FCC rules, use shielded interface cables.

Canada (Regulations)This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numrique de la classe B est conforme la norme NMB-003 du Canada.

European Union (Declaration of Conformity)Xerox Corporation declares, under our sole responsibility, that the product to which this declaration relates is in conformity with the following standards and other normative documents:

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Low Voltage Directive 73/23/EEC as amendedEN 60950:2000

Electromagnetic Compatibility Directive 89/336/EEC as amendedEN 55022:1998+A1:2000 +A2:2003 EN 55024:1998+A1:2000 +A2:2003 EN 61000-3-2:2000 EN 61000-3-3:1995+A1:2000

Radio & Telecommunications Terminal Equipment Directive 1999/5/EC as amendedEN 300 330-2 V1.1.1 EN 300 440-2 V1.1.1 EN 301 489-3 V1.3.1

This product, if used properly in accordance with the user's instructions, is neither dangerous for the consumer nor for the environment. A signed copy of the Declaration of Conformity for this product can be obtained from Xerox.

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Phaser 8400/8500/8550 Color Printer

Electrostatic Discharge (ESD) PrecautionsSome semiconductor components, and the respective sub-assemblies that contain them, are vulnerable to damage by Electrostatic discharge (ESD). These components include Integrated Circuits (ICs). Large-Scale Integrated circuits (LSIs), field-effect transistors and other semiconductor chip components. The following techniques will reduce the occurrence of component damage caused by static electricity. Be sure the power is off to the chassis or circuit board, and observe all other safety precautions.

Immediately before handling any semiconductor components assemblies, drain the electrostatic charge from your body. This can be accomplished by touching an earth ground source or by wearing a wrist strap d