Xerox Phaser 3250 Manual de usuario

Версия 14.04.2010

Руководство по техническому

обслуживанию

Phaser 3250

Документация изменена и дополнена:

1. Изменен парт номер PBA Main Controller (P3250 D) на 140N63322.

2. Изменен парт номер PBA Main Controller (P3250 DN) на 140N63323.

Service Manual

Phaser®3250

701P47817

Laser Printer

Service Manual

701P47817

Phaser® 3250

Laser Printer

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: March 2008

ii Phaser 3250 Laser Printer Service Manual

Prepared By:

Xerox Corporation

XOG Worldwide Product Training and Information

26600 SW Parkway

Wilsonville, OR 97070

Unpublished rights reserved under the copyright laws of the United States.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 and 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 technical training materials and service manuals are intended for use by authorized Xerox service technicians and service partners only

and are not for resale. These materials may not be distributed, copied, or otherwise reproduced without prior written consent from Xerox

Corporation.

XEROX®, CentreWare®, Phaser®, PrintingScout®, and Walk-Up® are trademarks of Xerox Corporation in the United States and/or other

countries.

Adobe® and PostScript® are trademarks of Adobe Systems Incorporated in the United States and/or other countries.

Apple®, Bonjour®, ColorSync®, EtherTalk®, Macintosh®, and Mac OS® are trademarks of Apple Computer, Inc. in the United States and/or

other countries.

PCL® is a trademark of Hewlett-Packard Corporation in the United States and/or other countries.

Microsoft®, Windows®, Windows Server®, and Windows Vista® are trademarks of Microsoft Corporation in the United States and/or other

countries.

Novell®, NetWare®, and IPX/SPX™ are 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.

UNIX® is a registered trademark in the US and other countries, licensed exclusively through X/Open Company Limited.

As an ENERGY STAR® partner, Xerox Corporation has determined that this product meets the ENERGY STAR guidelines for energy efficiency.

The ENERGY STAR name and logo are registered U.S. marks.

Phaser 3250 Laser Printer Service Manual iii

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 present during a

procedure or action. Be aware of all symbols and terms when they are used,

and always read Note, Caution, and Warning statements.

Note

A note indicates an operating or maintenance procedure, practice or

condition that is necessary to efficiently accomplish a task.

A note can provide additional information related to a specific subject or

add a comment on the results achieved through a previous action.

Caution

A caution indicates an operating or maintenance procedure, practice or

condition that, if not strictly observed, results in damage to, or destruction of,

equipment.

Warning

A warning indicates an operating or maintenance procedure, practice or

condition that, if not strictly observed, may result in personal injury.

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.

iv Phaser 3250 Laser Printer Service Manual

Symbols Marked on the Product

Warning. Danger invisible laser radiation when open. Avoid

direct exposure to beam.

Hot surface on or in the printer. Use caution to avoid

personal injury.

Warning. Use caution to avoid personal injury.

Use caution (or draws attention to a particular component).

Refer to the manual(s) for information.

Do not touch the OPC Drum.

Do not expose the item to sunlight.

Do not tilt the Print Cartridge.

Do not expose item to high temperature.

Recycle the item.

35°C

95°F

0°C

32°F

Phaser 3250 Laser Printer Service Manual v

Power Safety Precautions

Power Source

For 115 VAC printers, do not apply more than 127 volts RMS between the

supply conductors or between either supply conductor and ground. For 230

VAC printers, do not apply more than 254 volts RMS between the supply

conductors or between either supply conductor and ground. Use only the

specified power cord and connector. This manual assumes that the reader is

a qualified service technician.

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. A protective ground

connection by way of the grounding conductor in the power cord is essential

for safe operation.

Disconnecting Power

Warning

Turning the power Off using the power switch does not completely de-

energize the printer. You must also disconnect the power cord from the

printer’s Alternating Current (AC) inlet. Disconnect the power cord 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 product,

■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.

vi Phaser 3250 Laser Printer Service Manual

Electrostatic Discharge Precautions

Some 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 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.

■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.

■Do not use freon-propelled chemicals. These can generate electrical

charges sufficient to damage some devices.

■Do not remove a replacement component or electrical sub-assembly from

its protective package until you are ready to install it.

■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 the device will be installed.

■Minimize body motions when handling unpacked 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.

■Handle IC’s and Erasable Programmable Read-Only Memories

(EPROM’s) carefully to avoid bending pins.

■Pay attention to the direction of parts when mounting or inserting them on

Printed Circuit Boards (PCB’s).

Phaser 3250 Laser Printer Service Manual vii

Service Safety Summary

General Guidelines

For qualified service personnel only: Refer also to the preceding “Power Safety

Precautions” on page v.

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.

Ozone: During normal operation, this machine produces ozone gas. The

amount of ozone produced does not present a hazard to the operator.

However, it is advisable that the machine be operated in a well ventilated

area.

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 all covers are in place and 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 3250 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 product does not emit hazardous

laser radiation; which 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.

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