Frontis - Phaser 4400 Laser Printer Service Manual
Contents
1. not cause harmful interference 2 this device must accept any interference received including interference that may cause undesired operation This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications ICES 003 Le pr sent appareil num rique n met pas de bruits radio lectrique d passant les limits applicables aux appareils num riques de la classe B prescrites dans le R glement sur le brouillage radio lectrique dict par le ministere des Communications du Canada NMB 003 Declaration of Conformity Xerox Corporation declares under our sole responsibility that the printer to which this declaration relates is in conformity with the following standards and other normative documents Phaser 4400 Laser Printer Service Manual ix In the European Union following the provisions of the Low Voltage Directive 73 23 EEC and its amendments EN 60950 IEC 950 Safety of Information Technology Equipment including Electrical Business Equipment following the provisions of the Electromagnetic Compatibility Directive 89 336 EEC and its amendments EN55022 1998 CISPR 22 Limits and Methods of measurement of radio interference characteristics of Information Technology Equipment Class B EN61000 3 2 1995 A1 1998 A2 1998 IEC61000 3 2 Part 3 Limits S2. For 220 VAC printers do not apply more than 264 volts RMS between the supply conductors or between either supply conductor and ground Use only the specified power cord This manual assumes that the reader is a qualified service technician Warning Plug the three wire power cord with grounding prong into a grounded AC outlet only If necessary contact a licensed electrician to install a properly grounded outlet If the product loses its ground connection contact with conductive parts may cause an electrical shock Disconnecting Power Warning Turning the power OFF using the On Off switch does not completely de energize the printer You must also disconnect the printer power cord from the AC outlet Position the power cord so that it is easily accessible during servicing so that you may power down the printer during an emergency Disconnect the power plug by pulling the plug not the cord Disconnect the power cord in the following cases If the power cord or plug is frayed or otherwise damaged If any liquid or foreign material is spilled into the case If the printer is exposed to any excess moisture If the printer is dropped or damaged If you suspect that the product needs servicing or repair Whenever you clean the product Phaser 4400 Laser Printer Service Manual v Electrostatic Discharge ESD Precautions Some semiconductor components and the respective sub assemblies that contain them are vulnerable to damage by Elect
3. PHASER 4400 LASER PRINTER Service 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 First Printing June 2002 071 0861 00 Copyright Copyright 2002 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 stylized x CentreWare and DocuPrint are registered trademarks of Xerox Corporation infoSMARTTM Phaser PhaserPort PhaserSMART and PhaserTools are trademarks of Xerox Corporation Total Satisfaction Services M is a service mark of Xerox Corporation Adobe Acrobat Reader and PostScript are registered trademarks of Adobe Systems Incorporated Apple LaserWriter LocalTalk Macintosh Mac OS and AppleTalk are registered trademarks of Apple Computer Incorporat
4. ained from Xerox Phaser 4400 Laser Printer Service Manual Safety Standards Phaser 4400 satisfies the following safety standards Category Standard Satisfied Laser Safety 100 V 120 V type is submitted to FDA 21 CFR Chapter 1 Subchapter J Section 1010 1040 220 V 240 V type is submitted to IEC 825 Class 1 Laser Product Ozone Density Does not exceed 0 02 ppm of ozone density TWA Time Weight Average measured according to ECMA 129 standard Other standards 100 V 120 V type satisfies UL 1950 3rd Edition CSA C22 2 no 950 M95 or equivalent NOM 200 V 220 V satisfies IEC 950 including amendments 1 2 3 and 4 CE Directive 1 Nordic and other Agency Approval 2 CCIB Notes 1 When the controller is installed the OEM customer shall be responsible for the submittal of CE and CCIB 2 The OEM customer shall be responsible for the Nordic agency approvals including NEMKO SEMKO SETI and DEMKO Phaser 4400 Laser Printer Service Manual xi xii Phaser 4400 Laser Printer Service Manual
5. e potential for electrical shock Warning Turning the power OFF using the On Off switch does not completely de energize the printer You must also disconnect the printer power cord from the AC outlet Position the power cord so that it is easily accessible during servicing so that you may power down the printer during an emergency Warning Do not touch any electrical component unless you are instructed to do so by a service procedure Servicing Mechanical Components Manually rotate drive assemblies to inspect drive gears Warning Do not try to manually rotate or manually stop the drive assemblies while any printer motor is running Servicing Fuser Components This printer uses heat to fuse the toner image to a sheet of paper The Fuser Assembly is very hot Turn the printer power OFF and wait at least 5 minutes for the Fuser to cool before you attempt to service the Fuser Assembly or adjacent components viii Phaser 4400 Laser Printer Service Manual Regulatory Specifications Federal Communications Commission Compliance The equipment described in this manual generates and uses radio frequency energy If it is not installed properly in strict accordance with Xerox instructions it may cause interference with radio and television reception or may not function properly due to interference from another device However there is no guarantee that interference will not occur in a particular installation If this equipment does ca
6. ection 2 Limits for harmonic current emissions equipment input current less than or equal to 16A per phase EN61000 3 3 1995 IEC61000 3 3 Part 3 Limits Section 3 Limitation of voltage fluctuations and flicker in low voltage supply systems for equipment with rated current less than or equal to 16A EN55024 1998 CISPR 24 Information technology equipment Immunity characteristics Limits and methods of measurement CISPR 24 Immunity Phenomena Basic Standard Test Specification Electrostatic Discharge IEC61000 4 2 1995 6kV Contact 10kV Air Radio Frequency Electromagnetic Field radiated IEC61000 4 3 1995 80 1000 MHz 3V m 80 AM 1KHz Fast Burst Transients IEC61000 4 4 1995 5 50 Tr Th ns 5kHz Rep Freq 0 5kV on Signal Lines 1kV on AC Mains Line Surge IEC61000 4 5 1995 Combination wave 2 0kV Common mode 2 0kV Differential mode Radio Frequency Electromagnetic Field Conducted IEC61000 4 6 1996 0 15 80 MHz 3V 80 AM 1kHz Line voltage dips IEC61000 4 11 1994 gt 95 dip for cycle 50 Hz 30 dip for 25 cycles 50 Hz Line voltage drop out IEC61000 4 11 1994 gt 95 dropout for 250 cycles 50 Hz 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 obt
7. ed PCL and HP GL are registered trademarks of Hewlett Packard Corporation MS DOS and Windows are registered trademarks of Microsoft Corporation Novell and NetWare are registered trademarks of Novell Incorporated Sun and Sun Microsystems are registered trademarks of Sun Microsystems Incorporated SPARC is a registered trademark of SPARC International Incorporated SPARCstation is a trademark of SPARC International Incorporated licensed exclusively to Sun Microsystems Incorporated UNIX is a registered trademark in the US and other countries licensed exclusively through X Open Company Limited This product includes an implementation of LZW licensed under U S Patent 4 558 302 Other marks are trademarks or registered trademarks of the companies with which they are associated ii Phaser 4400 Laser Printer Service Manual Service Terms Manual Terms Various terms are used throughout this manual to either provide additional information on a specific topic or to warn of possible danger that might be present during a procedure or action Be aware of all symbols and terms when they are used and always read NOTE CAUTION and WARNING messages Note A NOTE may indicate an operating or maintenance procedure practice or condition that is necessary to efficiently accomplish a task A NOTE may also provide additional information related to a specific subject or add a comment on the results achieved through a prev
8. ious action Caution A CAUTION indicates an operating or maintenance procedure practice or condition that if not strictly observed could result in damage to or destruction of equipment Warning A WARNING indicates an operating or maintenance procedure practice or condition that if not strictly observed could result in injury or loss of life PL Corresponds to the FRU Parts List RRP Corresponds to the FRU Disassembly Removal and Replacement Procedures Product Terms Caution A personal injury hazard exists that may not be apparent For example a panel may cover the hazardous area Danger A personal injury hazard exists in the area where you see the sign Phaser 4400 Laser Printer Service Manual ili Symbols Marked on the Product DANGER high voltage Protective ground earth symbol Hot surface on or in the printer Use caution to avoid personal injury The surface is hot while the printer is running After turning off the power wait 30 minutes Avoid pinching fingers in the printer Use caution to avoid personal injury Use caution or draws attention to a particular component Refer to the manual s for information gt H R on iv Phaser 4400 Laser Printer Service Manual Power Safety Precautions Power source For 110 VAC printers do not apply more than 140 volts RMS between the supply conductors or between either supply conductor and ground Use only the specified power cord and connector
9. r supply conductor and ground A protective ground connection by way of the grounding conductor in the power cord is essential for safe operation Warning Labels Read and obey all posted warning labels Throughout the printer warning labels are displayed on potentially dangerous components As you service the printer check to make certain that all warning labels remain in place Safety Interlocks Make sure covers and panel are in place and that all interlock switches are functioning correctly after you have completed a printer service call If you bypass an interlock switch during a service call use extreme caution when working on or around the printer CLASS 1 LASER PRODUCT The Phaser 4400 laser printer is certified to comply with Laser Product Performance Standards set by the U S Department of Health and Human Services as a Class 1 Laser Product This means that this is a class of laser product that does not emit hazardous laser radiation this is possible only because the laser beam is totally enclosed during all modes of customer operation When servicing the printer or laser unit follow the procedures specified in this manual and there will be no hazards from the laser Phaser 4400 Laser Printer Service Manual vii Servicing Electrical Components Before starting any service procedure switch off the printer power and unplug the power cord from the wall outlet If you must service the printer with power applied be aware of th
10. rostatic 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 Caution Be sure the power is off to the chassis or circuit board and observe all other safety precautions E 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 device connected to an earth ground source Wearing a wrist strap will also prevent accumulation of additional bodily static charges Be sure to remove the wrist strap before applying power to the unit under test to avoid potential shock m After removing a static sensitive assembly from its anti static bag place it on a grounded conductive surface If the anti static bag is conductive you may ground the bag and use it as a conductive surface E Do not use freon propelled chemicals These can generate electrical charges sufficient to damage some devices E Do not remove a replacement component or electrical sub assembly from its protective package until you are ready to install it E Immediately before removing the protective material from the leads of a replacement device touch the protective material to the chassis or circuit assembly into which
11. the device will be installed E Minimize body motions when handling unpackaged replacement devices Motion such as your clothes brushing together or lifting a foot from a carpeted floor can generate enough static electricity to damage an electro statically sensitive device m Handle ICs and EPROM s carefully to avoid bending pins m Pay attention to the direction of parts when mounting or inserting them on Printed Circuit Boards PCB s vi Phaser 4400 Laser Printer Service Manual Service Safety Summary General Guidelines For qualified service personnel only Refer also to the preceding Power Safety Precautions Avoid servicing 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 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 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 then 264 volts rms for a 220 volt AC outlet or 140 volts rms for a 110 volt AC outlet between the supply conductors or between eithe
12. use 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 E Reorient or relocate the receiver device being interfered with E Increase the separation between the printer and the receiver E Connect the printer into an outlet on a circuit different from that which the receiver is connected E Route the interface cables on the printer away from the receiver m Consult the dealer Xerox service or an experienced radio television technician for help Changes or modifications not expressly approved by Xerox can affect the emission and immunity compliance and could void the user s authority to operate this product To ensure compliance use shielded interface cables A shielded parallel cable can be purchased directly from Xerox at www xerox com officeprinting 6200supplies Xerox has tested this product to internationally accepted electromagnetic emission and immunity standards These standards are designed to mitigate interference caused or received by this product in a normal office environment This product is also suitable for use in a residential environment based on the levels tested In the United States this product complies with the requirements of an unintentional radiator in part 15 of the FCC rules Operation is subject to the following two conditions 1 this device may
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