Xerox Phaser 6300 Manuel utilisateur

Service

Manual

color laser printer

Phaser® 6300/6350

Phaser®6300/6350

Color Laser Printer

Service Manual

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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 2005

071-0875-00

Safety 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.

Common Acronyms:

The following list defines the acronyms that may be found in this manual.

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, results 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.

Danger: A personal injury hazard exists in the area where you see the sign.

ADC: Automatic Density Control MCU: Engine Control Board

BTR: Bias Transfer Roller NCS: Non-Contact Sensor

CRUM: Customer Replaceable Unit

Monitor

PHD: Imaging Unit

CTD: Toner Density Control PL: Corresponds to the FRU Parts List.

ESD: Electrostatic Discharge ROS: Laser Scanning Unit

IDT: Intermediate Transfer Unit RTC: Charge Roller

iv Phaser 6300/6350 Color Laser Printer Service Manual

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.

30 min.

Safety v

Power Safety Precautions

Power Source

For 115 VAC printers, do not apply more than 135 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 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 6300/6350 Color Laser Printer Service Manual

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 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 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).

Safety vii

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.

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® 6300/6350 Color 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 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.

viii Phaser 6300/6350 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.

arn

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

service procedure.

Servicing Mechanical Components

When servicing mechanical components within the printer, manually rotate drive

assemblies, rollers, and gears.

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

printer motor is running.

Servicing Fuser Components

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This printer uses heat to fuse the toner image to media. The Fuser 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 or adjacent components.

S7300-02

S7300-03

Safety ix

Regulatory Specifications

Xerox 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 (device being interfered with).

■Increase the separation between the printer and the receiver.

■Connect the equipment into an outlet on a circuit different from that 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 numérique de la classe B est conforme à la norme NMB-003 du Canada.

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