Xerox Phaser 6120 Bedienungsanleitung

Phaser® 6120 Color Laser Printer Service Manual

Phaser

6120

Color 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: August 2005

071-0877-00

Phaser® 6120 Color Laser Printer Service Manual

iii

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Phaser® 6120 Color Laser Printer Service Manual

Service Terms

Cautions, Notes, and Warnings

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 statement 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 statement indicates an operating or maintenance procedure, practice

or condition that, if not strictly observed, could result in injury or loss of life.

Product Terms

Caution: A personal injury hazard exists that may not be apparent. For example, a panel

may cover the hazardous area.

Warning: Apersonal injury hazard exists in the area where you see the sign.

Phaser® 6120 Color Laser Printer Service Manual

Safety Precautions

Power Source

For 110 VAC printers, do not apply more than 135 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 254 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.

Plug the power cord 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

Turning the power off using the On/Off switch may 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.

Electrical Safety

■Use the power cord supplied with your printer.

■Plug the power cord directly into a properly grounded electrical outlet. Make sure

each end of the cord is securely connected. If you do not know if an outlet is grounded,

ask an electrician to check the outlet.

■Do not use a ground adapter plug to connect the printer to an electrical outlet that does

not have a ground connection terminal.

■Do not use an extension cord or power strip.

■Verify that the printer is plugged into an outlet that is capable of providing the correct

voltage and current. Review the printer’s electrical specification with an electrician if

necessary.

Phaser® 6120 Color Laser Printer Service Manual

Avoid the potential of electrical shock by ensuring that the printer is properly grounded.

Electrical products may be hazardous if misused.

■Do not place the printer in an area where people might step on the power cord.

■Do not place objects on the power cord.

■Do not block the ventilation openings. These openings are provided to prevent

overheating of the printer.

■Do not drop paper clips or staples into the printer.

■Do not push objects into slots or openings on the printer. Making contact with a

voltage point or shorting out a part could result in fire or electrical shock.

If you notice unusual noises or odors:

■Turn off the printer immediately.

■Disconnect the power cord from the electrical outlet.

■Call an authorized service representative to correct the problem.

The power cord is attached to the printer as a plug-in device at the back of the printer. If it

is necessary to disconnect all electrical power from the printer, disconnect the power cord

from the electrical outlet.

■Power should be OFF when servicing the printer, unless a procedure instructs

otherwise.

Phaser® 6120 Color Laser Printer Service Manual

vii

Electrostatic Discharge (ESD) 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 to the chassis or circuit board is off, and observe all other safety

precautions.

■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 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, as they can generate electrical charges that may

damage some devices.

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

from its protective package until you are ready to install it.

■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 unpackaged replacement devices. Simple

motions such as your clothes brushing together or lifting a foot from a carpeted floor

can generate enough static electricity to damage a static sensitive device

■Handle IC’s and 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® 6120 Color Laser Printer Service Manual

viii

Service Safety Summary

General Guidelines

Your printer and supplies were designed and tested to meet strict safety requirements. These

include safety agency examination, approval, and compliance with established environmental

standards.

Your attention to the following safety guidelines helps to ensure the continued, safe operation

of your printer.

Warning: The material presented here, assumes, and is intended as a safety reminder for

qualified service personnel. 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 254

volts rms for a 220 volt AC outlet or 135 volts rms for a 110 volt AC outlet 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.

Warning Labels

Read and obey all posted warning labels. Warning labels are displayed on potentially

dangerous printer components. As you service the printer, check to make certain that all

warning labels remain in place.

Safety Interlocks

Make sure all covers and the printer’s control panel 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.

Phaser® 6120 Color Laser Printer Service Manual

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 the

potential for electrical shock.

Warning: Turning the power off by using the On/Off switch may 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.

Warning: Do not touch any electrical component unless you are instructed to do so by a

service procedure.

The following are hazards to your safety:

■The power cord is damaged or frayed.

■Liquid is spilled into the printer.

■The printer is exposed to water.

If any of these conditions occur, do the following:

■Turn off the printer immediately.

■Disconnect the power cord from the electrical outlet.

Servicing Mechanical Components

Caution: When servicing mechanical components within the printer, manually rotate drive

assemblies, rollers, and gears.

Warning: Do not try to manually rotate or manually stop the drive assemblies while any

printer motor is running.

Warning: This printer uses heat to fuse the toner image to media. 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.

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