Phaser®
6280
Color
Laser
Printer
Phaser® 6280
Service Manual
Phaser®6280
Warning
Color Laser Printer
Service Manual
701P48435
First Printing: November 2008
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.
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Unpublished rights reserved under the copyright laws of the United States.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®, and Windows Server™, 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.
SM
Sun
, 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.
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.
ii Phaser 6280 Color Laser Printer Service Manual
Service Terms
Note
Caution
Warning
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.
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.
A caution indicates an operating or maintenance procedure, practice or
condition that, if not strictly observed, results in damage to, or destruction
of, equipment.
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.
Phaser 6280 Color Laser Printer Service Manual iii
Symbols Marked on the Product
Danger invisible laser radiation when open. Avoid direct exposure
to beam.
Hot surface on or 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.
It may take 30 minutes for the fuser to cool down.
Do not touch the item.
Do not expose the item to sunlight.
Do not expose the item to light.
Do not burn the Print Cartridge.
Do not expose the Print Cartridge to sunlight.
Recycle the item.
iv Phaser 6280 Color Laser Printer Service Manual
Power Safety Precautions
Warning
Power Source
Disconnecting Power
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.
Turning the power Off using the power switch does not completely deenergize 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.
Phaser 6280 Color Laser Printer Service Manual v
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).
vi Phaser 6280 Color Laser Printer Service Manual
Service Safety Summary
General Guidelines
Warning Labels
For qualified service personnel only: Refer also to the preceding “Power Safety
Precautions” on page v.
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.
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 6280 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.
Phaser 6280 Color Laser Printer Service Manual vii
Servicing Electrical Components
Warning
Warning
Warning
Before starting any service procedure, switch the printer power Off 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.
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
the Drive Assemblies, Rollers, and Gears.
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 paper. The Fuser is
VERY HOT. Turn the printer power Off and wait at least 5 minutes for the
Fuser to cool before attempting to service the Fuser or adjacent
components.
viii Phaser 6280 Color Laser Printer Service Manual
Moving the Printer
Warning
Warning
Caution
24.5 kg
54 lb.
s6280-296
Parts of the printer are hot. Wait at least 30 minutes for the printer to cool
before moving or packing the printer.
■ Use the power switch to turn Off the printer, and unplug all cables and
cords. Do not turn the printer Off by pulling the power cord or using a
power-strip with an On/Off switch.
Back injury could result if you do not lift the printer properly.
■ The printer can be lifted by one person. Use safety lifting and handling
techniques when moving the printer.
■ Always move the printer separately from Tray 2.
When shipping the printer, repack the printer using the original packing
material and boxes or a Xerox packaging kit. Instructions for repacking the
printer are included in the kit. If you do not have all the original packaging, or
are unable to repackage the printer, contact your local Xerox service
representative.
Failure to repackage the printer properly for shipment can result in
Phaser 6280 Color Laser Printer Service Manual ix
damage to the printer. Damage to the printer caused by improper
packaging is not covered by the Xerox warranty, service agreement, or
Total Satisfaction Guarantee.
Regulatory Information
United States (FCC Regulations)
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.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the Federal Communications
Commission (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
■ 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.
the receiver is connected.
x Phaser 6280 Color Laser Printer Service Manual
European Union
The CE mark applied to this product symbolizes Xerox’s
declaration of conformity with the following applicable Directives
of the European Union as of the dates indicated:
December 12, 2006: Low Voltage Directive 2006/95/EC
December 15, 2004: Electromagnetic Compatibility Directive 2004/108/EC
This product, if used properly in accordance with the user's instructions, is
neither dangerous for the consumer nor for the environment.
To ensure compliance with European Union regulations, use shielded
interface cables.
A signed copy of the Declaration of Conformity for this product can be
obtained from Xerox.
Phaser 6280 Color Laser Printer Service Manual xi
Manual Organization
The Phaser 6280 Color Laser Printer Service Manual is the primary
document used for repairing, maintaining, and troubleshooting the printer.
Use this manual as your primary resource for understanding the operational
characteristics of the printer and all available options. This manual describes
specifications, theory, and the diagnosis and repair of problems occurring in
the print engine and attached options. Also included are detailed replacement
procedures, parts lists, and wiring diagrams.
The Phaser 6280 Color Laser Printer Service Manual contains these sections:
Introductory, Safety, and Regulatory Information: This section contains important
safety information and regulatory requirements.
Section 1 - General Information: This section contains an overview of the
printer’s operation, configuration, specifications, and consumables.
Section 2 - Theory of Operation: This section contains detailed functional
information on the print engine components.
Section 3 - Error Codes and Messages: This section provides detailed
troubleshooting procedures for error messages and codes generated by
resident diagnostics.
Section 4 - General Troubleshooting: This section contains the operation of
Power On Self Test (POST) and Service Diagnostics. In addition, this section
includes troubleshooting methods for situations where error indicator is not
available.
Section 5 - Print-Quality Troubleshooting: This section focuses on techniques to
correct image quality problems associated with the printer output.
Section 6 - Adjustments and Calibrations: This section provides procedures for
the adjustment of the print engine components.
Section 7 - Cleaning and Maintenance: This section provides periodic cleaning
procedures for the printer.
Section 8 - Service Parts Disassembly:
procedures for spare parts listed in the Parts List. A replacement procedure is
included when necessary.
Section 9 - Parts List: This section contains exploded views of the print engine
and optional Field Replaceable Units (FRUs), as well as part numbers for
orderable parts.
Section 10 - Plug/Jack and Wiring Diagrams: This section contains the plug/jack
locations and the wiring diagrams for the printer.
Appendix A - Reference: This section provides an illustration of the printer’s
Control Panel menu structure, printer firmware update instructions, a list of
printer error chain link codes, and a list of acronyms and abbreviations.
This section contains removal
xii Phaser 6280 Color Laser Printer Service Manual
Service Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Symbols Marked on the Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iv
Power Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .v
Electrostatic Discharge Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
Service Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii
Moving the Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .x
Manual Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .xii
1 General Information
Printer Introduction and Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Technical Support Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Printer Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Parts of the Printer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Front and Side Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Rear View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Printer Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Additional Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Duplex Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
Hard Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
Optional 550-Sheet Feeder (Tray 3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
Maintenance Items. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Consumables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
Printer Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
Memory Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
Print Speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16
Operating Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
First Print Output Time (FPOT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
Image Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
Physical Dimensions and Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
Mounting Surface Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
Media and Tray Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
Controller Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
Job Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
ID Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
Non-Genuine Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
CRUM Condition for Auto Region Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
Toner Remaining Amount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-28
Maintenance Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-29
Information Pages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-30
Table of Contents
Table of Contents
Phaser 6280 Color Laser Printer Service Manual xv
Table of Contents
2 Theory of Operation
Phaser 6280 Printer Operational Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Print Process Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Printing Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Charging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
Exposure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
Development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7
Transfer (Drum ---> Paper) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Cleaning (Print Cartridge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11
Neutralization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-12
Fusing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13
Paper Path of the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Paper Path Route. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
Paper Path Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Major Assemblies and Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Tray 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Paper Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21
Tray 1 (MPT) & Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23
Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-28
Transfer Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-30
Laser Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31
Print Cartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33
Main Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37
Duplex Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-43
Tray 3 - Optional 550-Sheet Feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-44
Printer Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51
Operational Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51
Printer Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-52
Paper Size Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-52
Selective Control on Paper Tray. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53
Laser Unit Light Quantity Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53
Process Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53
Color Registration Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-56
Fuser Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57
Drive Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58
Mechanical Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-58
Main Drive Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-61
Dispenser Assembly (C) (M) (Y) (K) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-67
Paper Handling Drive Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-69
Duplex Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-71
Optional 550-Sheet Feeder Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-73
xvi Phaser 6280 Color Laser Printer Service Manual
3 Error Messages and Codes
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Accessing Error History Report. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Error History Report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Servicing Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Messages, Chain Link Codes, and Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Error Messages Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Error Message and Chain Link Code Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Jam Error Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Jam at Tray 2 (Feeder 1 Jam) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Jam at Tray 3 (Feeder 2 Jam) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-14
Jam at Tray 1 (MPT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Jam at Registration Roll . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
Jam at Exit 1/Exit 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-27
Jam at Duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-30
Jam at Duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35
Jam at Registration Roll/Jam at Exit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-39
Jam at Tray 2 (Feed Jam) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-45
Jam at Duplexer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-47
Consumable/Routine Maintenance Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
Insert Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-51
Replace Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-53
Fuser CRUM ID Error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-54
Fuser Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-55
Ready Fuser Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-57
Print Cartridge Near Life (Yellow/Magenta/Cyan/Black). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-58
Check Cartridge (Yellow/Magenta/Cyan/Black) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-59
Replace Print Cartridge (Yellow/Magenta/Cyan/Black) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-61
Empty Print Cartridge (Yellow/Magenta/Cyan/Black). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-62
Print Cartridge CRUM Error (Yellow/Magenta/Cyan/Black) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-63
Check Cartridge (Yellow/Magenta/Cyan/Black) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-65
Print Cartridge CRUM ID Error (Yellow/Magenta/Cyan/Black) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-66
Insert Print Cartridge (Yellow/Cyan/Magenta/Black) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-67
Insert Transfer Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-70
Replace Transfer Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-72
Transfer Unit CRUM Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-73
Ready Transfer Unit Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-74
Tray and Paper Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75
Load Tray 1 (MPT) (Paper Size Mismatch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-75
Load Tray 2 (Paper Mismatch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-77
Load Tray 3 (Paper Mismatch) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-79
Insert Tray 2 (Tray Missing) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-81
Insert Tray 3 (Tray 3 Missing). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-83
Load Tray 1 (MPT) (No Suitable Paper). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-84
Load Tray 2 (No Suitable Paper) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-86
Load Tray 3 (No Suitable Paper) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-88
Open Door A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-91
Multiple Feed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-92
Table of Contents
Phaser 6280 Color Laser Printer Service Manual xvii
Table of Contents
Configuration, Memory, and Firmware Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-94
Download Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-94
Control Panel Language Set Unsupported. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-95
MAC Address Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-96
Out of Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-97
PDL Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-98
Collate Full. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-99
Download Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-100
Auditron Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-101
Invalid Job. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-102
Disk Full. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-103
Network Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-104
Hard Disk Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-105
MCU Firmware Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-106
MCU Communication Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-108
MCU NVRAM Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-109
Fan Motor Error (Rear) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-111
Fan Motor Error (Duplexer). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-114
Deve Mode Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-117
Over Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-119
Main Motor Error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-120
Sub Motor Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-122
Tray 2 (PH) Motor Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-124
Optional Feeder Motor Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-126
Laser Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-129
Optional 550-Sheet Feeder Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-130
Duplex Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-132
Door A Open . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-134
ADC Sensor Error (High Density) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-135
ADC Sensor Error (Low Density). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-139
Environmental (Humidity) Sensor Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-143
Controller System Error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-145
RAM Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-147
NVRAM Error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-148
MACPHY Chip Test Error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-149
MACPHY Internal Loop Test Error. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-150
MACPHY External Loop Test Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-151
4 General Troubleshooting
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
System Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
Power On Self Test (POST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Service Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Entering Service Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Using Service Diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Service Diagnostics Control Panel Button Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-5
Service Diagnostics Menu Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Menu Map - Page 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
Menu Map - Page 2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Printer Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Motors, Clutches, Solenoids, Lamps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8
Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9
Duplex Components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
Clutch, Fan, Motor, Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-10
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Table of Contents
Service Diagnostics Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Service Diagnostic Tests and Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11
Sensor Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-27
Motor Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-41
Control Panel Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65
Printer Does Not Come to a “Ready” State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65
Control Panel LED is On, Control Panel Display is Blank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-65
Engine Test Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-66
Inoperable Printer Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67
Engine Power-Up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67
Printer Continually Displays Warming Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-67
Printer Continually Displays Insert Print Cartridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-68
AC Power Supply Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-70
DC Power Supply Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71
LVPS Overcurrent Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71
LVPS Overvoltage Protection Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71
LVPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-71
+24 VDC Interlock Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-73
Abnormal and Electrical Noise. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-74
Abnormal Noise when Power is Turned On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-74
Abnormal Noise During Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-77
Electrical Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-80
AC Noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-81
Operating System and Application Problems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-83
Windows 2000, Windows XP, Windows Server Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-83
Verify Settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-83
Verify Driver Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-83
Macintosh Troubleshooting (Mac OS 10.3 and Higher). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-84
UNIX / Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-85
5 Print-Quality Troubleshooting
Print-Quality Problems Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Defects Associated with Specific Printer Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2
Checklist Before Troubleshooting Print-Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Checking the Printer Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5
Test Prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
No Image IOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Pattern IOT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Grid 2 ESS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Cyan 20% ESS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Magenta 20% ESS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-11
Yellow 20% ESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Black 20% ESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
CMY 20% ESS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Gradation ESS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-13
Toner Pallet Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
Contamination Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-15
Print-Quality Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Environmental Condition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Quality Paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Paper Condition. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Printer Condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-18
Phaser 6280 Color Laser Printer Service Manual xix
Table of Contents
Print-Quality Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Print-Quality Defect Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-22
Repeating Defect Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-23
Light or Undertone Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-24
Blank Print (No Print) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-26
Black Print. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-28
Vertical Blank Lines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-30
Horizontal Band, Voids, or Streaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-32
Vertical Stripes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-34
Horizontal Stripes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-36
Partial Band. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-39
Random Spots. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-41
Repeating Bands, Lines, Marks, or Spots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-43
Residual Image or Ghosting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-44
Background Contamination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-46
Skew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-48
Damaged Paper. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-51
Unfused Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-54
Color Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-56
6 Adjustments and Calibrations
Adjustments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Color Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Printing the Color Registration Correction Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
Enabling/Disabling Automatic Color Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Adjusting Color Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
Calibrations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Initializing Print Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Initializing NVM (NVRAM). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5
Parameter Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6
7 Cleaning and Maintenance
Service Maintenance Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Recommended Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2
Cleaning the Print Cartridge. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3
Cleaning the ADC Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
RIP (Repair, Inspect, and Prevent) Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-6
xx Phaser 6280 Color Laser Printer Service Manual
8 Service Parts Disassembly
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Standard Orientation of the Printer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Notations in the Disassembly Text. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Fastener Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-6
Maintenance Items and Consumables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Transfer Unit (PL4.1.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-8
Print Cartridge (C/M/Y/K) (PL5.1.18-21). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
Fuser (PL6.1.10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-11
Covers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
Rear Cover (PL1.1.4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-12
Right Side Cover (PL1.1.6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-13
Left Side Cover (PL1.1.7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-14
Top Cover (PL1.1.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-15
Front Cover Assembly (PL1.2.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-16
Tray 2 Cover (PL1.1.5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-18
Extender Cover (PL1.1.9) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-19
Front Latch (PL1.2.4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-20
Control Panel Wiring Harness (PL1.2.15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-21
Control Panel (PL1.2.16). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-23
Tray 1 (MPT) Cover (PL1.2.24). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-24
Paper Tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26
Tray 1 (MPT) Retard Roller Assembly (PL2.1.3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-26
Bottom Plate (PL2.1.20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-27
Tray 1 (MPT) No Paper Actuator (PL2.1.26) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-28
Tray 2 Retard Roll (PL2.2.17) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-29
Paper Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-30
Tray 1 (MPT) Feed Solenoid (PL3.1.3, PL3.1.99) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-30
Tray 1 (MPT) Roll (PL3.1.8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-32
Tray 1 (MPT) Feed Roll (PL3.1.10, PL 3.1.99). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-34
Tray 1 (MPT) No Paper Sensor (PL3.1.15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-35
Tray 2 Feeder Assembly (PL3.2.1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-36
Registration Clutch (PL3.2.23) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-40
Feed Clutch (PL3.2.24) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-41
Turn Clutch (PL3.2.25) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-42
Registration Sensor (PL3.2.30). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-43
No Paper Sensor (PL3.2.30) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-45
Turn Roll Assembly (PL3.2.32). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-46
Tray 2 Feed Roll (PL3.2.53). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-47
Nudger Assembly (PL3.2.59) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-48
Xerographics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
Laser Unit (PL5.1.2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-50
CRUM Connector (PL5.1.3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-52
Print Cartridge Sensor Assembly (Black/Cyan/Magenta/Yellow) (PL5.1.4) . . . . . . . . . . . . . . . . . . . . . . . . . 8-54
Print Cartridge Sensor (PL5.1.8). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-55
Dispenser Assembly (C/M/Y/K) (PL5.1.12) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-56
BIAS Assembly (PL5.1.13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-58
LED Assembly (PL5.1.15) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-60
HVPS (PL5.1.17). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-61
Exit Chute. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-63
Exit Out Chute (PL6.1.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-63
Duplex Gate Chute (PL6.1.13). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-64
Table of Contents
Phaser 6280 Color Laser Printer Service Manual xxi
Table of Contents
Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-65
Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-70
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-79
Duplex Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-99
Optional 550-Sheet Feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-100
Left Link (PL7.1.3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-65
Right Link (PL7.1.13) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-67
Tray 2 Size Switch Assembly (PL7.1.18). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-69
Main Drive Assembly (PL8.1.2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-70
PH Drive Assembly (PL8.1.7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-73
K Drive Assembly (PL8.1.10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-76
Interlock Assembly Harness (PL9.1.3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-79
LVPS (PL9.1.4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-80
Main Fan (PL9.1.10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-82
Power Switch (AC IN Harness Assembly) (PL9.1.16) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-83
Humidity Sensor (PL9.1.19) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-85
MCU Board (PL9.1.20) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-86
Image Processor Board (PL9.1.27). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-87
Memory Card (PL9.1.30). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-91
LVPS Assembly (PL9.1.40). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-92
MCU Board Shield (PL9.1.42) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-94
Image Processor Board Shield Assembly (PL9.1.45) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-96
Hard Drive Assembly (PL9.47) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-98
Duplex Unit (PL11.1.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-99
Optional 550-Sheet Feeder (PL12.1.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-100
Tray 3 Left Cover (PL12.1.2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-101
Tray 3 Cover (PL12.1.4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-102
Tray 3 Turn Clutch (PL12.1.5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-103
Tray 3 Feed Clutch (PL12.1.6). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-104
Tray 3 Right Cover (PL12.1.7). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-105
Tray 3 Size Switch (PL12.2.5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-106
Tray 3 Feeder Assembly (PL12.1.8, PL12.3.1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-107
Tray 3 No Paper Sensor (PL12.3.14). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-109
Tray 3 Feed Roll (PL12.3.29). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-110
Tray 3 Retard Roll (PL12.5.17) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-111
9 Parts List
Serial Number Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-2
Using the Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-5
Print Engine Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
Parts List 1.1 Covers (1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6
Parts List 1.2 Covers (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-8
Parts List 2.1 Tray 2 (1 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10
Parts List 2.2 Tray 2 (2 of 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-12
Parts List 3.1 Paper Feeder (1 of 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-14
Parts List 3.2 Paper Feeder (2 of 2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-16
Parts List 4.1 Transfer Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-19
Parts List 5.1 Xerographics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-20
Parts List 6.1 Fuser & Exit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-22
Parts List 7.1 Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-24
Parts List 8.1 Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-26
Parts List 9.1 Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-28
Parts List 10.1 Wiring Harness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-31
xxii Phaser 6280 Color Laser Printer Service Manual
Table of Contents
Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-33
Parts List 11.1 Duplex. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-33
Parts List 12.1 Optional-550 Sheet Feeder - Tray 3 (1 of 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-35
Parts List 12.2 Optional 550-Sheet Feeder - Tray 3 (2 of 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-37
Parts List 12.3 Optional 550-Sheet Feeder - Tray 3 (3 of 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-39
Parts List 12.4 Optional 550-Sheet Feeder - Tray 3 (4 of 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-41
Parts List 12.5 Optional 550-Sheet Feeder - Tray 3 (5 of 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-43
Xerox Supplies and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-45
Service Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-47
Plug/Jack Diagrams and Designators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2
Print Engine Plug/Jack Designators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-3
Duplex Plug/Jack Designators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-6
Optional Feeder Plug/Jack Designators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-7
Plug/Jack Locators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-8
Map 1 - Electrical and Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9
Map 2 - Laser Unit, Feeder Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-10
Map 3 - Image Processor Board and Dispenser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-11
Map 4 - LVPS and MCU Boards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-12
Map 5 - Duplex Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-13
Map 6 - Optional 550-Sheet Feeder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-14
Notations Used in the Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-15
Print Engine Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-18
Wiring Diagrams Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-18
General Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20
DC Power Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-21
Tray 1 (MPT) and Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-23
Main Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-25
Feeder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-27
Laser Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-29
Xerographic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-30
High Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-32
Developer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-33
Fuser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-35
Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-37
Optional 550-Sheet Feeder Wiring Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-39
Duplex Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-41
A Reference
Phaser 6280 Menu Map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-2
Firmware Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Boot Controller Update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-3
Firmware Controller Update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-4
Firmware MCU Update. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-5
TELNET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-6
Printer Chain Link Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-7
Acronyms and Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8
Index
Phaser 6280 Color Laser Printer Service Manual xxiii
General Information
In this chapter...
■ Printer Introduction and Overview
■ Printer Configurations
■ Parts of the Printer
■ Printer Options
■ Maintenance Items
■ Consumables
■ Printer Specifications
■ Controller Functions
Chapter
1
General Information
Printer Introduction and Overview
The Xerox Phaser 6280 Color Laser Printer has a single-pass color laserdesign architecture, which offers color and mono print speed at 26/31-ppm,
and resolutions up to 600 x 600 dots-per-inch (dpi). The printer supports
Adobe PostScript 3, PCL6, USB 2.0, and 10/100 Base-TX Ethernet.
The Phaser 6280 printer provides one standard 150-Sheet Tray 1 (MPT) and
one standard 250-Sheet Tray 2. Tray 1 (MPT) supports specialty media, card
stock, and envelopes. The standard paper input is 400 sheets and the
maximum input with options is 950 sheets. The Output Tray holds 300 sheets
facedown.
The printer options add memory, paper capacity, hard drive, and functionality.
Memory upgrades are available to increase the standard RAM from 256 MB
up to 1280 MB maximum. A 550-Sheet Feeder is available as an option. Autoduplexing is available and no tools are required to install the Duplex Unit. A
Hard Disk Drive is available for Secure Print, Proof Print, collation, and for
storing additional fonts/forms/macros.
Technical Support Information
The Xerox Phaser 6280 Color Laser Printer Service Manual is the primary
document used for repairing, maintaining, and troubleshooting the printer.
To ensure complete understanding of this product, participation in Xerox
Phaser 6280 Service Training is strongly recommended. To service this
product, Xerox certification for this product is required.
For updates to the Service Manual, Service Bulletins, knowledge base, etc.,
go to:
■ Xerox Global Service Net - https://www.xrxgsn.com/secure/main.pl
■ Service Partners: http://www.office.xerox.com/partners
For further technical support, contact your assigned Xerox Technical Support
for this product.
To help us improve our service documentation, please complete the survey
located at:
http://www.surveymonkey.com/s.aspx?sm=kzFndf9Bad57bk5sABIHtA_3d_3d
1-2 Phaser 6280 Color Laser Printer Service Manual
Printer Configurations
General Information
The Phaser 6280 printer is available in two configurations.
Phaser 6280 Configurations
Features Printer Configuration
6280N 6280DN
Processor and Clock Speed 400 MHz 400 MHz
Memory Configuration* 256 MB 256 MB
Resolutions (dpi)
■ Standard
■ Enhanced
Print Speed
■ Color
■ Mono
Fonts
■ Adobe PostScript 3 Fonts
■ PCL6 Fonts
Interface
■ USB 2.0 Hi-Speed Support
■ Ethernet Interface
■ Wired Network (Protocol)
600 x 600 x 1 bit
600 x 600 x 4 bit
26
31
Standard
Standard
Standard
10/100 Base-TX
N/A
600 x 600 x 1 bit
600 x 600 x 4 bit
26
31
Standard
Standard
Standard
10/100 Base-TX
SNMPv 1,2,3,
DHCP, BOOTP,
HTTP, SLP, Bonjour,
SMTP/POP3, RARP,
AutoIP, SSL/
HTTPS, SSL/TSL,
WINS, DDNS, FTP
(FW Upgrade),
TCP/IP (IPv4, IPv6
& Dual Stack),
IPSec, WSD, and
802.1x
Tra y
■ Tray 1 (MPT) (150 Sheet)
■ Tray 2 (250 Sheet)
■ Tray 3 (550-Sheet Feeder)
Standard
Standard
Optional
Standard
Standard
Optional
Job Pipelining Standard Standard
Duplex Unit Optional Standard
Hard Disk Drive Optional Optional
Warranty 1 year onsite 1 year onsite
* All configurations have one memory slot supporting 512 MB/ 1 GB DDR2 DIMMs, to a maximum of
1280 MB. Standard memories are soldered on board.
Phaser 6280 Color Laser Printer Service Manual 1-3
General Information
1
2
3
4
5
6
7
10
9
8
s6280-033
Parts of the Printer
Front and Side Views
1. Tray 2
2. Tray 3
3. Tray 1 (MPT)
4. Front Cover (Door A)
5. Control Panel
6. Output Tray
7. Extender Cover
8. Top Cover
9. Front Cover Release Button
10. Power Switch
1-4 Phaser 6280 Color Laser Printer Service Manual
Rear View
s6280-034
1
2
3
General Information
1. Ethernet Port
2. USB Port
3. Power Cord Connector
Phaser 6280 Color Laser Printer Service Manual 1-5
General Information
Ready
C M Y K
1 2
3
4 5 7 8
6
s6280-035
Control Panel
The Control Panel consists of 2 LEDs, 1 display window, and 8 functional
buttons. These buttons are used to navigate the menu system, perform
functions, and select modes of operation for the printer.
Control Panel Button Descriptions
1. Ready LED (Power/Status) LED On - Ready to print or processing print
job.
LED blinking - The printer is receiving data.
LED Off - An error has occurred and the
printer is offline or in Sleep mode.
2. Error LED Light On - Error with print job.
(blinking = not user fixable)
(On solid = user fixable)
3. Graphic Control Panel Display Displays printer settings, status, and
messages.
4. Menu Button Changes display between Menu mode and
Print mode.
5. 4 Way Cursor Buttons Moves between the Menu levels.
Up and Down arrows Switches between Menus or Items on the
same level.
Right and Left arrows Switches between the Menu levels.
6. Cancel Button Cancels the current print job.
7. OK Button Move to the next level, confirm setting, and
print report.
8. Wake Up LED/Button LED comes On when the printer is in Power
Saver Mode. Press this button to exit the
Power Saver Mode.
1-6 Phaser 6280 Color Laser Printer Service Manual
LED Indicators
LED State Printer State
Green Ready to Print or in Power Saver mode
Flashing Green Processing print job
Red Error occurs, can be fixed by user
Flashing Red Error occurs, cannot be fixed by user
Control Panel Shortcuts
Mode Buttons Pressed at Power On
Service Diagnostics Up + Down arrow buttons
General Information
Reset Password to 0000
(used when the Control Panel menus
are locked)
Boot Download for Controller Up + Down + Menu buttons
Menu
Phaser 6280 Color Laser Printer Service Manual 1-7
General Information
RAM DIMM
Duplex Unit
s6280-036
Printer Options
Additional Memory
The Phaser 6280 printer options include:
■ Additional Memory (512 MB/ 1024 MB)
■ Duplex Unit
■ Hard Disk Drive
■ Optional 550-Sheet Feeder (Tray 3)
The printer features one slot that accepts 512 MB or 1024 MB of DDR2
DIMMs. Memory modules must meet the following characteristics:
■ 200 Pin DDR2 DIMM (8 chip type)
■ Unbuffered, Non-parity
The printer Configuration page lists the amount of RAM installed in the printer.
Duplex Unit
User can install the Duplex Unit without using any tools and by simply
removing the Transfer Unit.
1-8 Phaser 6280 Color Laser Printer Service Manual
Hard Disk Drive
s6280-295
General Information
The Phaser 6280 supports a customer removable Hard Disk for Secure Print,
Proof Print, collation, and for storing additional fonts/forms/macros.
Phaser 6280 Color Laser Printer Service Manual 1-9
General Information
Note
s6280-037
Optional 550-Sheet Feeder (Tray 3)
The Optional 550-Sheet Feeder increases the input capacity of the printer and
can be attached to the printer underneath Tray 2 with 2 screws.
Only one Optional 550-Sheet Feeder is supported.
1-10 Phaser 6280 Color Laser Printer Service Manual
Maintenance Items
Note
Fuser
Transfer Unit
Tray 2
Retard Roller
Feed Rollers
s6280-038
General Information
An item is a printer part or assembly that has a limited life, and requires
periodic replacement. The following routine maintenance items are customer
replaceable.
The listed items have limited life and require periodic replacement.
Phaser 6280 Maintenance Items
Item Print Life
Transfer Unit Up to 100,000 pages
Fuser Assembly Up to 100,000 pages
Feed/Retard Roller Up to 100,000 pages
Print life is based on “typical” office printing and 5% coverage per color on
24 lb. paper. The 100,000 life is not guaranteed and varied depending on
usage habits.
Phaser 6280 Color Laser Printer Service Manual 1-11
General Information
s6280-039
Optional 550-Sheet Feeder
Feed Roller
Tray 3
Optional 550-Sheet Feeder
Retard Roller
1-12 Phaser 6280 Color Laser Printer Service Manual
Consumables
s6280-040
General Information
Consumables consist of 4 Print Cartridges used in the printer.
CMY Toner will not be consumed when printing in Mono mode or when
printing a Grayscale job only. Internal counters track Consumables and
Maintenance Items life usage.
Each Print Cartridge has a CRUM (Customer Replaceable Unit Meter) to
record the information. CRUM counts the amount of remaining toner. When
toner empty is detected, Life End status will be sent to indicate toner empty.
Life ratings are based on A-size sheets at 5% coverage.
Print Cartridge Print Life
Color Mono
Standard Capacity 2,000 pages 3,000 pages
High Capacity 6,000 pages 8,000 pages
Metered Prints * 11,000 pages 11,000 pages
(*) Metered prints Cartridges cannot be used in Standard configuration printer. Be
sure the printer is configured for PagePack usage.
Phaser 6280 Color Laser Printer Service Manual 1-13
General Information
Printer Specifications
Functional Specifications
Characteristic Specification
Printing Technology Recording System: Tandem electro-photographic system
using OPC Drum and direct transfer by the Transport Belt
Developer: Double components trickle development
Exposure System: 4 semiconductors laser beam scanning
system
Transfer System: Four-color finished toner image is
transferred onto the paper
Fusing System: Quick thermal fusing system by Free Belt
Nip Fusing (FBNF)
Print Volume
■ Average: 800 PV/month
■ Maximum: 60,000 PV/month
For Duplex prints, prints on the front and back sides of
paper are counted as 2 PV.
Maximum PV is 2,000 PV/day.
Color Medium Cyan, Magenta, Yellow, and Black Print Cartridges
Resolution /
Addressability (dpi)
Print-Quality Mode
Average Image
Coverage
Maximum Image
■ Standard: 600 x 600 x 1
■ Enhanced: 600 x 600 x 4
■ 600 x 600 x 1bit (Standard)
■ 600 x 600 x 4bit (Enhanced)
■ Color: 5% each CMYK
■ Mono: 5%
240% for all C, M, Y, K combined
Coverage
Printer Life 300,000 pages
Maximum Duty Cycle 60,000 pages/month*
Warm-Up Time Less than 30 seconds from Power On
Operating System Windows 2000 SP3 or greater/ 2003/2008
Server/ XP Pro/ XP/ Vista Home SP1
or greater
Macintosh OS 10.3 or higher
Linux Redhat, SuSe, and TurboLinux 10
Desktop
* Assumes a 30 day month of printing.
1-14 Phaser 6280 Color Laser Printer Service Manual
Memory Specifications
Characteristic Specifications
Memory Minimum 256 MB On-Board
Supported RAM Supports up to 1280 MB of DDR2 DIMM with one
Electrical Specifications
Characteristic Specification
Power Supply Voltage/Frequency
Line Voltages ■ 110-127 VAC ± 10%
General Information
memory
Maximum 1280 MB
slot for 512 MB/ 1 GB
■ 220-240 VAC ± 10%
Frequency Range 50/60 Hz ± 3 Hz
Current Capacity ■ 110 V Engine: 8 A or less
■ 230 V Engine: 4 A or less
Power Consumption
Power Saver Mode 9 W or less ■ 110 V: 3.9 W
■ 220 V: 4.3 W
Standby Mode (Fuser On) 95 W or less ■ 110 V: 64.3 W
■ 220 V: 68.4 W
Color Printing Duplex 460 W or less ■ 110 V: 379.6 W
■ 220 V: 379.2 W
Color Printing Simplex 460 W or less ■ 110 V: 443.6 W
■ 220 V: 428.6 W
B/W Printing Duplex 460 W or less ■ 110 V: 371.8 W
■ 220 V: 370.1 W
B/W Printing Simplex 460 W or less ■ 110 V: 426.1 W
■ 220 V: 423.3 W
Maximum Rated Value 890 W or less
ENERGY STAR (Sleep Mode) 45 W or less
In-rush Current
Maximum at 1st 2.5 msec ■ 50 Amp (Cold start)
■ 135 Amp (Hot start)
Within 10 msec ■ 80 Amp (110 V/ 220 V/ 240 V)
■ 85 Amp (100 V)
Leakage Current Power Current
1Khz (DC) < 3.5 (UL) mA
Phaser 6280 Color Laser Printer Service Manual 1-15
General Information
Print Speed
Simplex (ppm) Duplex (ipm)
Resolution
600 Standard 26/25 31/30 18/17 21/20
600 Enhanced 26/25 31/30 18/17 21/20
Paper Type (65 - 220 gsm)
Letter 21 26 14 18
A4 21 25 14 17
A5 18 26 14 21
US Folio 18 23 13 16
Legal (custom) 18 21 12 15
Environmental Specifications
Characteristic Specification
Temperature
Operating 10 to 32° C (50 to 90° F)
Color
A/A4
Mono
A/A4
Color
A/A4
Mono
A/A4
Standby -20 to 40° C (-4 to 104° F)
Humidity (% RH)
Operating 15 to 85% RH (no condensation)
Standby 5 to 85% RH (no condensation)
Altitude
Operating 0 to 3,500 meters (11,482 feet)
Acoustic Noise LWA(B) Sound Power Level (B) Sound Pressure dB(A)
Engine
Printing 6.55 53.0
Standby 4.0 Less than 31.0
Full Option
Printing 7.07 56.0
Standby 4.0 -----
1-16 Phaser 6280 Color Laser Printer Service Manual
Operating Mode
General Information
Mode Condition Description
Running Mode The printer is under operating condition
such as running or recording.
Fusing The system keeps the operating
temperature.
Exposure The Laser Unit Motor runs at the running
speed.
Recording The system is under operating condition.
Cooling Fan The fan operates at high speed.
Control Panel
Operation
■ LCD - Backlight: On
■ LED - Ready LED is turned On.
Standby Mode The printer is under standby condition.
Fusing The system keeps the standby temperature.
Exposure The system is at Pause.
Recording The system is at Pause.
Cooling Fan The fan operates at low speed.
Control Panel
Operation
■ LCD - Backlight: On
■ LED: If printer is online, Ready LED is
turned On.
Power Saver
Mode
The printer enters into the Power Saver
mode to reduce power consumption when it
has not received print data for the specified
time.
The time to enter into the Power Saver
mode can be selected from 5 to 60 minutes
increment by 1 minute. The default Power
Save mode is 30 minutes.
Fusing The system is Off.
Exposure The system is at Pause.
Recording The system is at Pause.
Cooling Fan The system is Off.
Control Panel
Operation
■ LCD: Off, LCD Backlight: Off
■ LED: Power Saver LED is turned On.
Note: When the printer receives a print job or the Wake Up button is pressed, the
printer exits the Power Saver mode and enters the Ready mode.
Phaser 6280 Color Laser Printer Service Manual 1-17
General Information
First Print Output Time (FPOT)
First Print Output Time is defined as a time from when the engine receives a
Start signal in Ready state, until a single page is printed and delivered to the
output tray.
The following conditions are applied:
■ The Controller does not keep the print engine waiting
■ The printer is at Standby mode (Laser Unit Motor Off, Fuser Ready)
■ Paper is A size Short Edge Feed (SEF)
■ Process control time is not included
Mode FPOT (sec.)
Color As fast as 10.0
Mono As fast as 10.0
From Power On 30.0
1-18 Phaser 6280 Color Laser Printer Service Manual
Image Specifications
Note
Refer to “Print-Quality Troubleshooting” on page 5-1 for detailed
specifications.
Characteristic Specification
Maximum Print Area 210.9 mm (8.3 inches) x 351.6 mm (13.8 inches)
Guaranteed Print Area 207.9 mm (8.2 inches) x 347.6 mm (13.7 inches)
Skew 190 mm ± 1.2 mm
Perpendicularity 114.5 mm ± 0.8 mm
Parallelism
Horizontal 180 mm ± 1.2 mm
Vertical 234 mm ± 1.2 mm
General Information
The printer has 4 mm margins on all sides.
Linearity
Horizontal 190 mm ± 0.5 mm
Vertical 234 mm ± 0.5 mm
Slant 269 mm ± 1.2 mm
Magnification Error
Horizontal Simplex 190 mm ± 0.5%
Horizontal Duplex 190 mm ± 0.8%
Vertical Simplex 234 mm ± 0.5%
Vertical Duplex 234 mm ± 0.8%
Registration
Leading Edge 10.0 mm ± 2.0 mm
Side Edge 8.5 mm ± 2.5 mm
Phaser 6280 Color Laser Printer Service Manual 1-19
General Information
60 cm
(23.6 in.)
13 cm
(5 in.)
10 cm
(4 in.)
10 cm
(4 in.)
123.7 cm
(48.7 in.)
60 cm
(23.6 in.)
35 cm
(14 in.)
s6280-041
Physical Dimensions and Clearances
Printer Dimensions
Print Engine 6280N 6280DN
Height 473 mm (18.6 in.) 473 mm (18.6 in.)
Width 400 mm (15.7 in.) 400 mm (15.7 in.)
Depth 490 mm (19.3 in.) 490 mm (19.3 in.)
Weight
(base printer with supplies)
Optional 550-Sheet Feeder
Height 138 mm (5.4 in.) 138 mm (5.4 in.)
Width 400 mm (15.7 in.) 400 mm (15.7 in.)
Depth 490 mm (19.3 in.) 490 mm (19.3 in.)
Weight 7.7 kg (16.9 lb.) 7.7 kg (16.9 lb.)
Minimum Clearances
24.5 kg (54.0 lb.) 29.25 kg (64.5 lb.)
1-20 Phaser 6280 Color Laser Printer Service Manual
Mounting Surface Specifications
600 mm
600 mm
1237 mm
100 mm
100 mm
130 mm
s6280-042
Right Hand Side
s6280-043
5mm Max
These specifications apply to any printer used as a table-top printer.
1. In order to function properly, the printer must be placed on a surface with
the following minimum dimensions.
2. Mounting surface flatness must be within the specified range.
General Information
Phaser 6280 Color Laser Printer Service Manual 1-21
General Information
s6280-044
10° or 7 mm
10° or 7 mm
3. The printer must not be tipped or tilted more than 7 mm.
Failure to adhere to the specified mounting specifications will void all
guarantees of print-quality and/or performance. Known problems that can
occur as a result of exceeding the mounting surface specifications are:
■ Color-to-Color mis-registration, primarily in the horizontal (laser scan)
direction.
■ A smear or line of toner approximately 40 mm from the training edge of
the print.
1-22 Phaser 6280 Color Laser Printer Service Manual
Media and Tray Specifications
The following tables list the recommended Xerox paper for the printer.
Supported Paper Size
Paper Type Dimension Tray 1 (MPT) Tray 2, 3 Duplex
Letter 8.5 x 11 in. Yes Yes Yes
Legal 8.5 x 14 in. Yes Yes Yes
US Folio 8.5 x 13 in. Yes Yes Yes
Executive 7.25 x 10.5 in. Yes Yes Yes
A4 210 x 297 mm Yes Yes Yes
A5 148 x 210 mm Yes Yes Yes
B5 JIS 182 x 257 mm Yes Yes Yes
Custom Size* Yes Yes Yes
* All trays support Custom sizes. Tray 1 supports a wider range of Custom size
dimensions than trays 2 and 3.
General Information
Supported Paper Types and Weights
Paper Type Paper Weight Tray 1 (MPT) Tray 2, 3 Duplex
Plain Paper 65-90 g/m
Letter Head 85-120 g/m
2
2
Yes Yes Yes
Yes Yes Yes
(22-32 lb. Bond)
Glossy Paper 100-163 g/m
Thick Glossy
164-216 g/m
2
2
Yes Yes Yes
Yes Yes Yes
Paper
Pre-Punched 65-90 g/m
2
Yes Yes Yes
(17-24 lb. Bond)
Thin Card Stock 100-163 g/m
Thick Card
170-216 g/m
2
2
Yes Yes Yes
Yes No No
Stock
Label N/A Yes Yes Yes
Transparency N/A Yes No No
Special 100-163 g/m
2
Yes No No
(30-60 lb. Cover)
Phaser 6280 Color Laser Printer Service Manual 1-23
General Information
Supported Envelopes
Type Dimension Tray 1 (MPT) Tray 2, 3 Duplex
Envelope #10 4.12 x 9.5 in. Yes No No
Monarch
Envelope
C5 Envelope 162 x 229 mm Yes No No
DL Envelope 110 x 220 mm Yes No No
Note: Do not use envelopes with hot melt glue, windows, or metal clasps.
3.87 x 7.5 in. Yes No No
1-24 Phaser 6280 Color Laser Printer Service Manual
Controller Functions
Job Control
Auditron
Cancel Print
General Information
Auditron specifies the availability of color print and to limit print volume per
user. Only the administrators are allowed to configure the limitation settings
using CentreWare IS.
User name and password are embedded in the print job in order to identify
where the job is sent from. The user can enter the user name and password
using the printer driver.
Auditron cannot be used together with the Print Volume Management function
at the same time.
User can cancel a print job while printing is in progress using the Cancel
button on the printer’s Control Panel. Job cancellation is not immediate.
Depending on the job size, it may take a while to completely cancel.
Forced Output
This function forces the printer to print the received data when the printer is
waiting for the remaining data during job processing.
IP Filter
User can accept or reject print jobs up to five specified IP addresses. IP filter
is available only to LPD and Port9100 (IPv4 only).
Job Recovery
When a print job fails due to a paper jam, the printer automatically restarts the
job after the jammed paper is removed. User does not have to reprint the
entire job.
Job Timeout
When job transmission is interrupted for a certain period of time, the print data
is deleted as an error. Timeout setting can be changed using the menu on the
printer’s Control Panel.
Print Volume Management
Print Volume (PV) Management manages print volume per user and can
manage up to 50 users.
Phaser 6280 Color Laser Printer Service Manual 1-25
General Information
Note
RAM Disk and Hard Disk
RAM Disk or Hard Disk functions when memory or Hard Disk is expanded,
enabling Collation, Secure Print, Proof Print, Form Overlay, Font Download,
and PostScript file system (Hard Disk only).
Functionality RAM Disk Hard Disk Note
Collation x x
Secure Print
(Store Print)
Proof Print x x Refer to Secure Print.
PCL5 Form Overlay x x Refer to Secure Print.
PCL5 Font Download x x Refer to Secure Print.
PostScript File
System (i.e., PS font
download)
x x RAM Disk: The data on the memory
is cleared when the printer is turned
Off.
----- x
Collation
The job is stored in the memory and multiple copies are printed. When the
entire job does not fit in the memory, the printer prints one copy up to the
stored pages, and the remaining are discarded.
An error message will appear on the Control Panel: “Error xxxx Press set key.”
Two options are available to ensure Job Collation will process effectively:
■ Break large print job into multiple small print jobs
■ Increase memory for the printer
PCL6-Driver, Win PS Driver, XPS Driver, and Mac PS Driver do not have
the check box of this function.
Secure Print (Store Print)
The printer holds print data, including a user password (12 digits) specified in
the printer driver, user name and document name, in memory.
The data will not be printed until the same password, user name, and
document name are provided via the printer menu on the Control Panel. User
can remove or keep the data after printing the document. The data remains in
the printer memory as long as it is not cleared.
■ User ID – consists of a variable length from 1 to 24 byte characters (20H-
FFH). The driver requests the User ID from the user when the Secure
Print option is selected. A user ID cannot be blanked with only space
characters.
1-26 Phaser 6280 Color Laser Printer Service Manual
General Information
■ User Password – consists of a variable length from 0 to 11 digits. The
password is an optional input and hidden from the user interface by
displaying “*” for each digit. If a password is not specified, the driver will
accept it as a zero-length string so that a password will not be required
when requesting job output from the printer.
■ Document Name – consists of a variable length from 0 to 24 characters
(20H-FFH) that specifies the document name.
Proof Print
Proof Print can be selected when multiple sets of prints are specified in the
printer driver. The printer prints only the first set of the print data including a
user name and document name specified in the printer driver.
The user can keep or remove the data using the printer menu on the Control
Panel. The data remains in the printer memory as long as it is not cleared.
This function is not available for XPS Driver and Linux operating systems.
Form Overlay
The function for writing PCL6 forms are downloaded into RAM Disk.
ID Print
Font Download
PCL6 fonts can be downloaded into RAM Disk.
PostScript File System (Hard Disk Only)
PostScript File System is supported. PostScript fonts can be downloaded.
The user has the option whether or not to print the user name and where it is
printed. The printing position can be placed on the upper right, upper left,
lower right, and lower left (only for PCL6) of the page.
Phaser 6280 Color Laser Printer Service Manual 1-27
General Information
Non-Genuine Mode
When the Print Cartridge life has ended, the printer stops accepting print
request (life of the Print Cartridge is counted by the counter in the CRUM).
This mode can be changed so the printer will not stop at the end of the print
cartridge rated life; however, the printer will display an end of life message on
the Control Panel.
Print Cartridge Control Panel Display
Print Cartridge Control Panel Display Functionality
Normal
Status
Xerox Xerox
(TM) Print
Cartridge
Xerox
(refill Print
Cartridge)
Other OEM
(non-Xerox printer
manufacturer)
Non-Xerox Print
Cartridge
Manufacturer
Xerox
(TM) Print
Cartridge
Invalid
Print
Cartridge
Invalid
Print
Cartridge
CRUM Condition for Auto Region Switching
The Phaser 6280 supports CRUM for different regions including Xerox North
America (NA), Xerox Europe (XE), and Developing Markets (DMO).
Life
Warning
Error
Replace
Soon
Replace
Soon
Error Error Printer displays error and
No Life
Tracking
End of
Life Error
Replace
Print
Cartridge
Empty Prints with full
Replace
Print
Cartridge
Prints with full
functionality.
functionality up to 40%
of the Print Cartridge life.
will not print.
Prints with full
functionality.
Toner Remaining Amount
The CentreWare Internet Services (IS) and PrintingScout allow the printer to
display toner remaining amount.
1-28 Phaser 6280 Color Laser Printer Service Manual
Maintenance Function
Note
Firmware Update
The Image Processor Board and Multi-Protocol Network Card firmware can
be updated by customers and service technicians using Windows PC or
Macintosh with dedicated utilities. Firmware updates are available at
www.xerox.com/office/6280support.
Detailed procedures are available in the “Firmware Update” on page A-3.
Image Processor Board Available Available
MCU Board Available Available
General Information
Boot Code can be updated via USB port only.
Updated Firmware Windows
Via USB Via Network (port 9100)
Diagnostics
* MCU Board cannot be updated when ROM starts to be used for MCU Board.
Two types of diagnostic functions are available:
1. Auto Diagnostics: The printer is checked when it is turned on. It is
checked whether hardware (ROM, RAM, ASIC, etc...) operates properly.
2. Manual Diagnostics: Only qualified service personnel can perform manual
diagnostics using the Service Mode in the Control Panel.
Phaser 6280 Color Laser Printer Service Manual 1-29
General Information
Information Pages
Demo Page
Demo Page provides sample of print for the Phaser 6280 Color Laser Printer.
The Demo Page is printed in color from selected paper tray. The Demo page
will be printed in duplex mode when a Duplex Unit is installed.
1-30 Phaser 6280 Color Laser Printer Service Manual
Configuration Page
configuration.ai
General Information
Phaser 6280 Color Laser Printer Service Manual 1-31
General Information
User can print the Configuration Page from the Control Panel > Menu >
Information Pages > Configuration. The Configuration Page is printed in
from the default tray and includes the following information.
Configuration Page Information
General Description Detail Description
Title Prints Title of the document
Product Name (Logo) Prints organization’s logo
General Total Impressions, Total Color Impressions, Total
Black Impressions, Serial Number, Xerox Asset
Number, Customer Asset Number, Memory Capacity,
Printer Language, Number of Fonts Available,
PostScript Version, PostScript Serial Number,
Firmware Version, Boot Version, Engine Version,
PostScript CRD Version, Default Paper, Default
Language, Current Temperature, Current Humidity,
Region
Printer Options Duplex Unit: (00.00.00) (when installed)
Hard Disk (when installed)
Paper Tray: Tray 1 (MPT), Tray 2-3
Print Volume Print Volume for each paper size
Network Setup Firmware Version, MAC Address, Ethernet, TCP/IP,
IPv4, IPv6, IPsec, Protocol, Host Access List, Adobe
Protocol
USB Setup Port Status, Adobe Protocol
System Setup PowerSaver Time, Audio Tones, Fault Time-Out,
Time-Out, Language, Auto Log Print, Print ID, Print
Text, Banner Sheet, Size Mismatch, mm/inch, Start
Up Page, Odd Page 2 Sided
Maintenance Auto Reg Adj
PCL Paper Tray, Paper Size, Orientation, 2-Sided, Font,
Symbol Set, Font Size, Font Pitch, Form Line,
Quantity, Image Enhance, Hex Dump, Draft Mode,
LineTermination, Default Color
PostScript PS Error Report, PS Job Time-Out, Paper Select
Mode, Default Color
Control Panel Panel Lock
Tray Settings Tray 1 (MPT), Tray 2, Tray 3
1-32 Phaser 6280 Color Laser Printer Service Manual
Fonts List
General Information
User can print the PCL Font List or PostScript Font List on A size paper from
default tray.
Y, M, C, and K color patterns are printed on the Font List (PCL driver only).
The PCL Font List contains:
■ Number
■ Fonts
■ Escape Sequence
■ Font ID
■ Sample
The PostScript Fonts List contains:
■ Print Fonts
■ Fonts Sample
PCL Macro List
User can print the PCL Macro List default on A paper size from default tray.
Stored Document List (Memory or Hard Drive is needed)
User can print the Stored Document List using Secure Print/Proof Print
feature. The list can be printed on A paper size from default tray.
Job History Report
The printer can retain up to 20 job logs. Job History can be manually or
automatically printed when the number of the retained job logs has reached
20. User can print the Job History Report default on A paper size from default
tray. The Job History Report contains:
■ Date and Time (job sent)
■ Input Port (USB, LPD,...etc.)
■ Host/User Name
■ Document Name (File Name)
■ Output Color
■ Paper Size
■ Number of Printed Pages (Color/Mono)
■ Number of Printed Sheets (Color/Mono)
■ Result (successful, error,...etc.)
Phaser 6280 Color Laser Printer Service Manual 1-33
General Information
Error History Report
The printer can retain up to 42 jam errors and up to 42 fatal errors. User can
print the Error History Report default on A paper size from default tray using
the printer menu in the Control Panel.
Jam Error log includes the following information:
■ Item No.
■ Total Print Count
■ Paper Jam Type
Fatal Error log includes the following information:
■ Item No.
■ Total Print Count
■ Chain-Link
1-34 Phaser 6280 Color Laser Printer Service Manual
Print Meter (Print Volume Report)
Note
User can print the Print Meter page default on A paper size from default tray.
The Print Meter page contains:
■ Date of Initialization
■ Date/Time
■ Job Accounting User Name
■ Pages
■ Sheets
Billing Meters
The Billing Print counter provides the number of pages printed properly
(simplex print is counted as 1 and duplex print is counted as 2, including N
up).
If an error has occurred after the one side printed properly during duplex
printing, it is counted as 1.
General Information
Same data is stored in two or more addresses in one IC. Data check is
conducted.
When the Image Processor Board is replaced, IC can be transferred.
Counter Description
Color Print Counter Counts the number of pages printed in color (7 digits).
Mono Print Counter Counts the number of pages printed in mono (7 digits).
Total Print Counter Count the total number of pages printed in color and
mono (7 digits).
Phaser 6280 Color Laser Printer Service Manual 1-35
General Information
1-36 Phaser 6280 Color Laser Printer Service Manual
Theory of Operation
In this chapter...
■ Phaser 6280 Printer Operational Overview
■ Printing Process
■ Paper Path of the Printer
■ Major Assemblies and Functions
■ Printer Modes
■ Printer Control
■ Drive Transmission
Chapter
2
Theory of Operation
s6280-045
Print Cartridge
(C, M, Y, K)
Transfer Unit
Paper
(1) Charge
(2) Exposure
(3) Development
(4) Transfer (Drum to Paper)
(5) Cleaning
(6) Neutralization
(7) Fusing
Phaser 6280 Printer Operational Overview
The Phaser 6280 Color Laser Printer is a full-color laser printer that uses
Raster Output Scanner (ROS) lasers with an electrophotographic four-color
CMYK process. The tandem system consists of four color print cartridges (C,
M, Y, and K) which creates the toner image.
The following block diagram provides the sequence of events for the
xerographic process and the paper flow into and out of the Phaser 6280
Printer.
Print Process Block Diagram
2-2 Phaser 6280 Color Laser Printer Service Manual
Printing Process
s6280-046
Laser Unit
(2) Exposure
Print Cartridge (C, M, Y, K)
(1) Charging
(3) Development
(4) Transfer
(5) Cleaning
Fuser
(7) Fusing
Transfer Unit
(4) Transfer
(6) Neutralization
(8) Cleaning
Laser Beam
Paper Transfer
Theory of Operation
The Phaser 6280 Printer print process consists of the following steps:
1. Charging – The Drum surfaces are charged with electricity.
2. Exposure – The Drums are exposed to laser beams.
3. Development – Image is developed with toner.
4. Transfer (Drum ---> Paper) – Four color finished toner image on the
Drums is transferred onto the paper.
5. Cleaning (Print Cartridge) – Remaining toner on the drums is collected.
6. Neutralization – The Detack Saw neutralizes the charge on the paper via
the Belt.
7. Fusing – The Fuser applies toner on to paper using heat and pressure.
8. Cleaning – Remaining toner on the Transfer Unit is collected.
Phaser 6280 Color Laser Printer Service Manual 2-3
Theory of Operation
s6280-047
Cleaning Roll
BCR
Photoreceptor
Conductor
Drum
HVPS
s6280-048
Drum Surface
Charging
The Drum surface is charged with negative electricity by discharging of the
Bias Charge Roll (BCR) while rotating at a constant speed. This process is
performed in parallel for Cyan, Magenta, Yellow, and Black colors.
The BCR is kept in contact with the Drum and rotates following the rotations of
the Drum. The BCR is a conductive roll, which receives negative voltage from
the High-Voltage Power Supply (HVPS) and discharges a negative Direct
Current (DC) voltage.
The Drum surface is uniformly and negatively charged with DC bias voltage.
The Drum surface is a photoreceptor (which is an insulator in a dark area and
a conductor when receiving light) and the Drum inside is composed of
conductor.
The BCR Cleaner contacts with the BCR to catch the toner.
Electrical Potential
-V
on Drum
0
s6280-049
2-4 Phaser 6280 Color Laser Printer Service Manual
Exposure
Rear View
Mirror
Mirror
Laser
Diodes
Laser
Diode
Board
Lens
Scanner
Polygon Mirror
Window
SOS
Sensor
SOS Board
Front
s6280-050
Laser Beam (K)
Laser Beam (C)
Laser Beam (M)
Laser Beam (Y)
Mirror
Mirror
Mirror
Mirror
Mirror
Mirror
Mirror
Mirror
Mirror
Mirror
Polygon
Mirror
Lens
Lens
Drum (K)
Drum (C)
Drum (M)
Drum (Y)
Theory of Operation
Laser beams are emitted from the laser diodes in the Laser Unit. The Drum
for each color is scanned from end to end in the axial direction as the polygon
mirror rotates, which attaches the fixed mirror and lenses to the Scanner
Motor of the Laser Unit.
Phaser 6280 Color Laser Printer Service Manual 2-5
Theory of Operation
Laser Unit
Laser Beams
Laser Beam
Laser Beam
Laser Beam
Negative Electric Charge
Positive Electric Charge
Photoreceptor
Photoreceptor
Conductor
Conductor
Drum
Electrostatic
Latent Image
Electrostatic
Latent Image
Potential on
Drum Surface
-V
0
Drum Surface
Concept of Drum
s6280-051
The negative charged Drum surface is scanned by the laser beams to form an
invisible electrostatic latent image on the drum surface. The process is
performed in parallel for Cyan, Magenta, Yellow, and Black colors.
The area on the surface where the voltage potential drops due to exposure to
the laser beam becomes the electrostatic latent image.
2-6 Phaser 6280 Color Laser Printer Service Manual
Development
Waste Toner Collecting Area
s6280-052
Negative Electric Charge
Positive Electric Charge
Toner
Carrier
Print Cartridge
Developer
Trimmer Bar
Magnet Roll
Agitator
Auger
HVPS
Drum
Theory of Operation
Toner is electrically attached to the invisible electrostatic latent image on the
drum surface to form the visible toner image on the Drum.
The toner in the Print Cartridge is agitated by the built-in Agitator and fed into
the Developer part. The Augers are driven by the Toner Motor and the
Developer Motor in the Main Drive. The toner to be consumed according to
the print count is calculated and fed into the Developer. This process is called
Toner Dispensation, which is controlled by two processes: Pixel Count
Dispense Control (PCDC) and Automatic Density Control (ADC).
The toner fed into the Developer and the carrier in the Developer are agitated
by the Auger, and supplied to the Magnet Roll arranged in the drum surface
area. The toner and carrier are charged by friction due to agitation (toner in
negative, carrier in positive), and they are absorbed electrically. A uniform
layer is formed by the Trimmer Bar as the carrier magnetic substance is
attracted to the Magnetic Roll.
Phaser 6280 Color Laser Printer Service Manual 2-7
Theory of Operation
Drum Surface
Toner
Image
Electric Potential
on Drum
Developing
Bias
-V
0
s6280-053
The Magnet Roll is covered by a thin semi-conductive sleeve over the surface.
The Developer Bias voltage is supplied to this semiconductor sleeve from the
High-Voltage Power Supply (HVPS). Developer Bias is negative Direct
Current (DC) voltage combined with Alternating Current (AC) voltage. The
Magnet Roll is kept at constant negative voltage against the photoreceptor
layer of the drum by DC voltage. Therefore, at the area on the drum surface
where the negative electric charge does not decrease, potential is lower than
the magnet roll, while the potential is higher than the magnet roll at the area
where the negative charge on the drum surface decreases. The AC voltage
shakes the Developer on the Magnet Roll surface, causing the toner to
transfer to the drum.
Thus, the negatively charged toner is attracted only by the area where the
negative charge has decreased on the drum surface from the Magnet Roll
(electrostatic latent image) and the toner image is formed on the drum. When
the toner is attached, the negative charge at the portion of the drum increases
where the toner is located increases, the potential decreases, and the force to
attract the toner decreases.
2-8 Phaser 6280 Color Laser Printer Service Manual
Transfer (Drum ---> Paper)
Transfer (Drum Paper)
Drum Surface
(Black Toner Image)
Drum Surface
(Cyan Toner Image)
Drum Surface
(Magenta Toner Image)
Drum Surface
(Yellow Toner Image)
Paper
Black
Toner Image
Cyan
Toner Image
Magenta
Toner Image
Yellow
Toner Image
Toner image formed on the Drum surface is transferred onto the surface of the
paper. The toner is transferred onto the paper in the order of Y, M, C, and K.
Theory of Operation
Phaser 6280 Color Laser Printer Service Manual 2-9
Theory of Operation
Negative Electric Charge
Postive Electric Charge
Toner
Paper
Drum (K)
Drum (C)
Drum (M)
Drum (Y)
Drum Surface
HVPS HVPS
Transfer Unit
BTR
BTR
BTR
BTR
s6280-054
■ Bias Transfer Roll (BTR) – The BTR is a conductive roll, which receives
positive voltage from the HVPS. The BTR contacts the rear side of the
Belt and applies the positive voltage to the Belt.
■ Transfer Unit (Belt) – The Transfer Unit is a conductive unit, which
receives positive voltage from the BTR. After the negative charged toner
image on the Drum surface is drawn by the positive charge on the belt, it
is transferred from the Drum to the paper. The Transfer Unit feeds the
paper toward the direction of the Fuser.
2-10 Phaser 6280 Color Laser Printer Service Manual
Cleaning (Print Cartridge)
s6280-055
Positive Electric Charge
Negative Electric Charge
Toner
Erase Lamp (LED)
Conductor
Photoreceptor
Cleaning Roll
BCR
Blade
Drum
Excess toner is removed from the Drum and the BCR surfaces, while excess
charge is also eliminated from the drum surface.
■ Drum Cleaning – The cleaning blade contacts the surface of the drum
collecting the excess toner by scraping off toner.
■ Cleaning Roll – The Cleaning Roll contacts the surface of the BCR
collecting the excess toner by scraping off toner.
■ Charge Cleaning – When the Drum is charged by the BCR, any excess
charge hinders the Drum surface from being uniformly charged, which
may lead to print quality problems. The excess charge on the surface of
the Drum is eliminated by irradiating the light of the Erase Lamp (LED).
Theory of Operation
Phaser 6280 Color Laser Printer Service Manual 2-11
Theory of Operation
s6280-056
Negative Electric Charge
Positive Electric Charge
Paper
Drum
Drum
Drum
Drum
Detack Saw
Detack Saw
Detack Saw
Detack Saw
K
C
M
Y
BTR
BTR
BTR
BTR
HVPS
Transfer Unit
Neutralization
The Detack Saw neutralizes the charge on the paper via the Belt.
The Detack Saw, a metal sheet secured at the ground level, is installed at
several millimeters away from the back side of the belt.
2-12 Phaser 6280 Color Laser Printer Service Manual
Fusing
s6280-057
Paper
Nip Spring
Nip Head
Belt Assembly
Belt Frame
Sheet
Pad
Unfixed Toner
Heater Lamp
Heat Roll
Fixed Toner
Theory of Operation
Toner is applied by the BTR and the Developers. The toner image is applied
on the paper with the Fuser (Fusing Unit) by the Free Belt Nip Fusing (FBNF)
thermal fusing system. The Heat Roll with the Heater Lamp melts the toner
particles. Toner is fused onto the paper by the combination of heat and
pressure.
Warm-Up Stand By Printing
Main Heater Lamp On On/Off On
Cleaning
Phaser 6280 Color Laser Printer Service Manual 2-13
A cleaning blade in the Print Cartridge scrapes off toner remaining on the
drum surface after transfer has occurred. Then, the latent charge pattern
remaining on the photoconductive drum is neutralized by the Erase Lamp to
prepare the drum for the next Exposure cycle.
Theory of Operation
s6280-058
Tray 1 (MPT)
Multiple Sheet Feed
Prevention
Multiple
Sheet Feed
Prevention
Multiple
Sheet Feed
Prevention
550-Sheet Feeder
(Tray 3)
Motor Drive/Solenoid/
MPT Roll
Turn Roll
Motor Drive/Clutch/
Feed Roll/Turn Roll
250-Sheet Standard
Tray (Tray 2)
Motor Drive/
Clutch/Feed Roll
Lead Edge
Registration
Registration Assembly
Motor Drive/
Clutch/Regi Roll
Transfer Unit
Motor Drive/Belt
Fuser
Motor Drive/Heat Roll/
Pressure Belt
Exit Roll in the Fuser
Motor Drive/Clutch/
Exit Roll
Motor Drive/Clutch/
Dup Roll
Duplex Module
Output Tray
Paper Path of the Printer
Paper Path Route
The paper is supplied from Tray 1, 2, or optional Tray 3, and is transported into
the printer along the paper path as shown in the diagram.
2-14 Phaser 6280 Color Laser Printer Service Manual
Paper Path Components
Laser Beam
Paper Transfer
Paper Sensors
Exit Roller (Fuser)
Duplex Gate (Fuser)
Exit Sensor (Fuser)
Pressure Belt (Fuser)
Duplex Gate
Heat Roller (Fuser)
Duplex Roller
(Duplex Module)
Duplex Roller
(Duplex Module)
Duplex Jam Sensor
(Duplex Module)
Belt (Transfer Unit)
Regi Roller (Metal)
(Registration)
Regi Roller (Rubber)
(Registration)
Regi Sensor
(Registration)
No Paper Sensor
(250-Sheet
Feeder)
No Paper Sensor
(550-Sheet
Feeder)
Tray 1 (MPT)
No Paper Sensor
Tray 1 (MPT) Roller
Tray 1 (MPT)
Turn Roller
Feed Roller (250-Sheet
Feeder)
Tray 2 Retard Roller
(250-Sheet Feeder)
Turn Roller (550-Sheet Feeder)
Tray 3 Retard Roller (550-Sheet Feeder)
Feed Roller (550-Sheet Feeder)
s6280-059
Paper path components for the printer and the Optional 550-Sheet Feeder are
shown in the following figure.
Theory of Operation
Phaser 6280 Color Laser Printer Service Manual 2-15
Theory of Operation
s6280-060
Bottom Plate
Tray 2 End Guide
Left Side Guide
Right Side Guide
Retard Roll
Major Assemblies and Functions
Major functional components for the printer are classified into the following
categories based on the printer configuration.
■ Tray 2
■ Paper Feeder
■ Tray 1 (MPT) & Registration
■ Fuser
■ Transfer Unit
■ Laser Unit
■ Print Cartridge
■ Main Drive
■ Electrical
■ Duplex Unit
Tray 2
■ Tray 3 - Optional 550-Sheet Feeder
■ Tray 2 Left/Right Side Guide
The Side Guide moves at a right angle toward the paper transfer direction
to align the paper width.
2-16 Phaser 6280 Color Laser Printer Service Manual
Theory of Operation
Note
s6280-066
Legal 13" (SEF)
Executive (SEF)
B5 (SEF)
A5 (SEF)
Letter (SEF)
A4 (SEF)
Legal 14" (SEF)
Tray 2 End Guide
All paper should be loaded SEF.
■ Tray 2 End Guide
The End Guide moves in toward the paper transfer direction to determine
the paper size. The On/Off of the Size Switch adjusts according to the
Tray End Guide position to detect the paper size.
The paper size is detected at the End Guide position.
Refer to “Paper Size Detection” on page 2-52 for detailed information on
paper size switches and paper size.
■ Tray 2 Retard Roll
The Retard Roll and Feed Roll pinch the paper to prevent multiple sheets
of paper from feeding.
Phaser 6280 Color Laser Printer Service Manual 2-17
Theory of Operation
s6280-061
Bottom Plate
Bottom Up Spring
Bottom Lock Oneway Gear
Bottom Rack Lock
a
b
c
d
e
Bottom Lock
Oneway Gear
Stopper
Stopper
Lock Part
(Tray Housing)
Bottom Lock Lever
Support Nudger
Bottom Rack Lock
Actuator
Left Guide
Bottom Lock
Lever Gear
Front of TrayRear of Tray
■ Tray 2 Bottom Pla te
The Bottom Plate is locked to the bottom side when the Tray is pulled out
from the paper feeder, and unlocked when the Tray is installed into the
paper feeder. The Bottom Plate pushes the paper against the Feed Roll
using a spring tension.
a. When the tray is inserted into the Sheet Feeder, the Actuator is
pushed toward the front by the Left Guide, which pushes the Stopper.
b. The Stopper unlocks the Bottom Lock Oneway Gear.
c. When the tray is pushed until it stops, the Bottom Lock Lever is
pressed down by the Support Nudger in the Sheet Feeder.
d. The Bottom Lock Lever actuates the Bottom Lock Lever Gear, which
pushes the Bottom Rack Lock toward the rear.
e. The gear on the Bottom Rack Lock is disengaged from the Bottom
Lock Oneway Gear, which allows the Bottom Plate to raise up by the
Bottom Up Springs.
2-18 Phaser 6280 Color Laser Printer Service Manual
Tray 2 Multiple Sheet Feed Prevention
s6280-062
Feed Roller (Takeaway Roller)
Feed Roller (Nudger Roller)
Retard Roller (Separator)
Retard Roller (Separator)
Friction Clutch
Single Feed
The sheets loaded into Tray 2 are occasionally stuck together along the
edges, which can cause a multiple feed or a jam. The Nudger Roller feeds the
sheets to a position between the Feed Roller and the Retard Roller. Normally,
when only one sheet is fed, both the Feed Roller and Retard Roller rotate to
allow the sheet to pass.
Theory of Operation
Phaser 6280 Color Laser Printer Service Manual 2-19
Theory of Operation
s6280-063
Feed Roller (Takeaway Roller)
Feed Roller (Nudger Roller)
Retard Roller (Separator)
Retard Roller (Separator)
Friction Clutch
Multiple Feed
However, when two sheets are fed concurrently, only the Feed Roller rotates.
The Retard Roller is coupled to a friction clutch that prevents the roller from
rotating due to extra force from feeding two sheets; this process allows the
upper sheet to pass by as the lower sheet is stopped by the friction with the
Retard Roller at rest.
The Retard Roller is pushed toward the Feed Roller by spring pressure, and
controlled by the Friction Clutch with which it is coupled.
2-20 Phaser 6280 Color Laser Printer Service Manual
Paper Feeder
s6280-064
No Paper Sensor
Feed Roller (Takeaway Roller)
Feed Roller
(Nudger Roller)
Tray 2 Feed Clutch
Paper Size Switch
s6280-065
Size Switch
Size Switch Actuator
Tray End Guide
Theory of Operation
■ Tray 2 Feed Roller
The Feed Roller (Takeaway Roller) feeds the paper when the Feed Clutch
operates.
■ Tray 2 Feed Clutch
The Feed Clutch transmits drive energy from the PH Drive Assembly to
the Feed Roller.
■ Tray 2 Size Switch
The Size Switch detects the presence and size of the paper in the tray.
Phaser 6280 Color Laser Printer Service Manual 2-21
Theory of Operation
s6280-067
No Paper Sensor
No Paper Actuator
Actuator (No Paper Position)
■ Tray 2 No Paper Sensor
The No Paper Sensor detects the presence of the paper in the tray based
on the Tray 2 No Paper Actuator’s position.
2-22 Phaser 6280 Color Laser Printer Service Manual
Tray 1 (MPT) & Registration
Note
s6280-068
Tray 1 (MPT) Feed Roller
Tray 1 (MPT) No Paper Sensor
Tray 1 (MPT) Feed Solenoid
Tray 1 (MPT) Gear
Turn Clutch
Registration Clutch
Turn Roll
Rubber
Registration Roller
Registration Sensor
Metal Registration Roller
Theory of Operation
■ Tray 1 (MPT) Turn Clutch
The Turn Clutch transmits drive energy from the PH Drive Assembly to the
Tur n Ro ll e r.
■ Tray 1 (MPT) Turn Roller
The Turn Roller is rotated by the drive from the PH Drive Assembly
through the Turn Clutch to feed paper from the Tray 1 (MPT) or duplex
paper path to the Registration Chute.
■ Tray 1 (MPT) Registration Sensor
The Registration Sensor detects paper when the paper leading edge
reaches the Registration Chute. When paper is fed from Tray 1 (MPT), the
Registration Sensor measures the paper length. The On time of the
Registration Sensor is converted into the paper length.
On: The paper activates the Actuator.
■ Tray 1 (MPT) Registration Clutch
The Registration Clutch transmits drive energy from the Main Drive to the
Registration Rubber Roller, and transports paper from Tray 1 (MPT) and
the duplex path to the Print Cartridge direction. The timing of sheets
feeding from the Registration is adjusted by the duration of the
Registration Clutch operation so that the toner image on the drum can be
transferred to the appropriate position on the sheet.
Phaser 6280 Color Laser Printer Service Manual 2-23
Theory of Operation
s6280-069
Tray 1 (MPT) Feed Solenoid
Tray 1 (MPT) Feed Roller
Retard Roller
Drive Assembly
Tray 1 (MPT) No Paper
Sensor
No Paper Actuator
s6280-070
Tray 1 (MPT) No Paper
Sensor
Paper
No Paper Actuator
■ Tray 1 (MPT) Feed Solenoid
The Feed Solenoid controls drive energy from the PH Drive Assembly to
the Tray 1 (MPT) Feed Roller.
■ Tray 1 (MPT) No Paper Sensor
The No Paper Sensor detects the presence of paper in Tray 1 (MPT)
based on the Actuator’s position.
2-24 Phaser 6280 Color Laser Printer Service Manual
Tray 1 Multiple Sheet Feed Prevention
Single Feed
s6280-071
Tray 1 (MPT) Feed Roller
Retard Roller
Retard Roller
Torque Limiter
Multiple Feed
s6280-072
Tray 1 (MPT) Feed Roller
Retard Roller
Retard Roller
Torque Limiter
The sheets loaded in Tray 1 (MPT) are occasionally stuck together at the
edges, which can cause a multiple sheet feed or a jam. Normally, when only
one sheet is fed, both the Feed Roller and Retard Roller rotate to allow the
sheet to pass.
Theory of Operation
However, when two sheets are fed concurrently, only the Feed Roller rotates.
The Retard Roller is coupled to a friction clutch that prevents the roller from
rotating due to the extra force from feeding two sheets; this process allows the
upper sheet to pass by as the lower sheet is stopped by the friction with the
Retard Roller at rest.
The Retard Roller is pushed toward the Feed Roller by spring pressure, and
controlled by the Torque Limiter (Friction Clutch Retard) with which it is
coupled.
Phaser 6280 Color Laser Printer Service Manual 2-25
Theory of Operation
s6280-073
Registration Rollers
s6280-074
Registration Rollers
Skewed Paper
Lead Edge Registration
When a sheet is fed from Tray 1 (MPT) to the toner transfer position, the
registration of the sheet may not be correctly maintained due to misalignment
of lead edges in the tray.
To avoid this problem, the lead edge position needs to be aligned at the
Registration rollers before the sheet is fed in front of the Transfer Unit Belt, or
in front of the BTR’s.
Before the Registration rollers are energized, the paper is advanced from the
tray to the rollers. This process aligns the leading edge as shown below.
By pushing the edge of the sheet coming out of Tray 1 (MPT) against the
Registration Roller that is not turning, the lead edge of the sheet is registered.
2-26 Phaser 6280 Color Laser Printer Service Manual
Paper Detection by the Registration Sensor
s6280-075
Registration Sensor
Actuator A
Actuator B
From Paper Tray
Paper
Normal Position
Registration Sensor
Registration Sensor
Actuator A
Actuator A
Actuator B
Actuator A
Actuator B
From Tray 1 (MPT) or Duplex
Paper
Registration Sensor Spring (A)
Registration Sensor Spring (B)
Registration Sensor
Since the paper path from Tray 1/Duplex to the Registration Sensor and from
the paper tray to the Registration Sensor are different, the Registration
Sensor is provided with Actuators A and B.
■ Actuator A detects the sheet fed from Tray 1/Duplex.
■ Actuator B detects the sheet fed from the paper tray.
The movement of Actuator A does not affect Actuator B.
Theory of Operation
Phaser 6280 Color Laser Printer Service Manual 2-27
Theory of Operation
s6280-076
ADC Sensor
Transfer Unit
Exit Sensor
Exit Roller
Fuser
Temperature
Sensor (STS)
Temperature
Sensor (NCS)
Thermostat
Heater Lamp
Heat Roller
Pressure Belt
Rear View
Front
Fuser
The Fuser fixes transferred toner onto the paper using heat and pressure and
feeds the paper before and after toner is fixed. The Fuser consists of the
following components: Heat Roller, Heater Lamp, Thermostat, Temperature
Sensor, Pressure Belt, Exit Roller, and Exit Sensor.
■ Heat Roller
The Heat Roller is a metal tube with coated surface and a Heater inside.
As the paper passes between the Heat Roller and Pressure Belt, heat
that is applied to the paper, melts the toner, and fuses it to the paper.
2-28 Phaser 6280 Color Laser Printer Service Manual
Theory of Operation
■ Heater Lamp
The Heater Rods are glass tubes containing heater coils. The Main
Heater Lamp heats the entire length of the Heat Roller, and the Dual SubHeater Rods heat the center.
■ Thermostat
The Thermostat provides a second-level of protection. If the Heat Roller
temperature exceeds the current temperature, the Thermostat cuts off the
AC power to the Heater Lamps.
■ Temperature Sensors
The temperature sensors are thermistors having a known value of
resistance that varies with temperature. There are two Temperature
Sensors. The Soft Touch Sensor (STS) is located at the edge of the
Heater Lamp, and the Non-Contact Sensor (NCS) is located at the center
of the Fuser. The sensors monitor temperature of each location to control
lighting of the Heater Lamp. The Sensors are mounted in contact with the
surface of the Heat Roller. Power to the Heater Lamp is turned On and Off
using the signals from these sensors, so that the surface temperature of
the Heat Roller can be maintained within a specified range. This signal is
also used to provide a first stage of overheat protection.
■ Pressure Belt
The Pressure Belt maintains pressure on the paper passing between it
and the Heat Roller. The pressure bonds the melted toner to the paper.
■ Exit Roller
The Exit Roller transports paper from the Fuser to the output tray.
■ Exit Sensor
The Exit Sensor detects passage of printed pages after fusing on the
Actuator’s position changes.
Phaser 6280 Color Laser Printer Service Manual 2-29
Theory of Operation
s6280-077
Normal Position
Spring
ADC Solenoid
ADC Solenoid On
Position of ADC Sensor
(Window = Open)
ADC Pad
ADC Pad
Shutter
Position of ADC Sensor
ADC Sensor
Transfer Unit
The Transfer Unit consists of the Belt, ADC Sensor, ADC Solenoid, and ADC
Pad.
■ Belt
The Belt feeds the paper toward the direction of the Fuser.
■ ADC Sensor
The ADC Sensor detects the toner patches on the Belt and converts them
to voltage value. The voltage value is used to control density of toner.
■ ADC Solenoid
To activate the ADC Pad, turn On the ADC Solenoid for a fixed time
before the ADC Sensor starts reading the toner patches. When turned
On, the ADC Solenoid activates the ADC Pad, which cleans
contamination on the ADC Sensor surface.
2-30 Phaser 6280 Color Laser Printer Service Manual
Laser Unit
s6280-078
Laser Unit
Rear View
Mirror
Mirror
Laser
Diodes
Laser
Diode
Board
Lens
Scanner
Polygon Mirror
Window
SOS
Sensor
SOS Board
Front
Theory of Operation
The Laser Unit is an exposure unit that generates laser beams to form
electrostatic latent image on the drum surface. The Laser Unit consists of the
following components: Laser Diode (LD) Assembly, Scanner Assembly, Start
of Scan (SOS) Board, Lens, Mirror, and Window.
Phaser 6280 Color Laser Printer Service Manual 2-31
Theory of Operation
■ Laser Diode Board
There are four Laser Diodes which produce laser beams that are turned
On and Off according to the print data signal.
The Laser Diode Board is comprised of four LDs corresponding to C, M,
Y, and K. Each LD converts the electric signals of incoming image data
into laser waves. In order to stabilize the laser light quantity during
formation of an electrostastic latent image, the LD Board monitors the
intensity of the laser beam to adjust it to the appropriate level. This
process is called Auto Power Control (APC).
■ Scanner
The Scanner is comprised of a Scanner Motor that rotates at a constant
speed and a Polygon Mirror that is mounted on the Motor Shaft. The laser
light output from the LD is irradiated onto the Polygon Mirror via the
Mirror. The Polygon Mirror, provided with six reflecting mirror faces,
changes the reflection angle of the laser light as it rotates by the Scanner
Motor, thereby allowing the laser light to scan the drum along its axial
direction. Scanning is performed using one reflecting mirror face for each
line.
■ Start of Scan (SOS) Board
The SOS Sensor on the SOS Board converts incoming laser beam, upon
detection, to an electric signal as reference for starting scanning, and
transmits this signal to the MCU Board. The SOS sensor signals are used
to synchronize the starting point of the laser beam scanning with the
starting point of the image writing.
■ Lenses
The laser light reflected from the Polygon Mirror reaches the drum surface
via the Lenses, Mirror, and Window. The Lenses correct aberration.
■ Mirror
The Mirror directs the laser beam and secure an optical path.
■ Window
The window prevents debris from entering into the Laser Unit.
2-32 Phaser 6280 Color Laser Printer Service Manual
Print Cartridge
s6280-079
Print Cartridge (K)
Print Cartridge (C)
Print Cartridge (M)
Print Cartridge (Y)
Dispenser (K)
Dispenser (C)
Dispenser (M)
Dispenser (Y)
LED
CRUM Connector (K)
CRUM Connector (C)
CRUM Connector (M)
CRUM Connector (Y)
CRU Sensor (K)
CRU Sensor (C)
CRU Sensor (M)
CRU Sensor (Y)
Theory of Operation
The Print Cartridge is a customer replaceable item that consists of the
following components:
■ Customer Replaceable Unit Memory (CRUM) Connector
The CRUM Connector reads and writes the CRUM data. Printer specific
information is stored in the CRUM.
■ Dispenser Assembly (C/M/Y/K)
The Dispenser Assembly provides drive energy to the Agitator and Auger
in the Print Cartridge, and provides toner to the Developer part of the Print
Cartridge.
Phaser 6280 Color Laser Printer Service Manual 2-33
Theory of Operation
s6280-080
CRU Sensor Actuator
(No Cartridge Position)
CRU Sensor Actuator
(Cartridge in Position)
Print Cartridge Sensor (C, M, Y, K) Print Cartridge Sensor (C, M, Y, K)
Print Cartridge
CRU Sensor Assembly
s6280-081
Erase Lamp
Erase Lens
LED Drum Print Cartridge
■ CRU Sensor (C/M/Y/K)
The CRU Sensor detects the presence of the Print Cartridge.
■ Erase Lamp (LED)
The light of the LED passes through the lens of the Print Cartridge,
illuminates the drum, and eliminates the charge on the drum.
2-34 Phaser 6280 Color Laser Printer Service Manual
Main Drive
s6280-082
Main Drive Assembly
Clutch Assembly Exit
Sub Motor
Main Motor
K Drive
Assembly
Paper Handling Motor
Paper Handling Drive Assembly
Theory of Operation
The Main Drive provides drive energy to the following components:
■ Main Motor
The Main Motor provides drive energy for the Black Drum, Transfer Unit,
and Fuser.
■ Sub Motor
The Sub Motor provides drive energy for the Black Developer, Cyan,
Magenta, and Yellow Drums.
■ Exit Clutch
The Exit Clutch transmits drive energy from the Main Motor to the Exit
Roll in the Fuser. When Duplex mode is in use, the Exit Clutch stops. The
Exit Roll is driven by the Duplex Motor.
■ PH Drive Assembly
The PH Drive Assembly provides drive energy for Tray 1 (MPT), Tray 2,
and Registration Assembly. The Tray 2 Motor is part of the PH Drive
Assembly.
Phaser 6280 Color Laser Printer Service Manual 2-35
Theory of Operation
s6280-280
[ Full Color Mode ]
K Mode
Switching Sensor
K Mode
Switching Solenoid
Cam C
Gear C
K Mode
Switching Sensor
K Mode
Switching Solenoid
[ Black And White Mode ]
Cam C
Gear C
Drive
From
Sub Motor
Drive To
Developer
(Y, M, C)
Gear D3 In
Gear D3 Out
Cam C
K Drive Assembly
Drive
From
Sub Motor
Gear D3 In
Gear D3 Out
Cam C
[ Full Color Mode ]
[ Black And White Mode ]
■ K Drive Assembly
The transmission channel is changed by the the Color Mode Switching
Solenoid in the K Drive Assembly to allow the driving force of the Sub
Motor to reach the C/M/y Developer only.
This process ensures that the Yellow, Magenta, and Cyan Developers
cannot be rotated by the Sub Drive Assembly during black and white
printing.
2-36 Phaser 6280 Color Laser Printer Service Manual
Electrical
s6280-083
Humidity/Temperature
Sensor
Interlock Switch
Power Switch
EEPROM Board
Image Processor Board
MCU Board
Interlock Switch
Humidity/Temperature
Sensor
Control Panel
Main Fan
LVPS
HVPS
Ready
C M Y K
s6280-084
Theory of Operation
Control Panel
The Control Panel displays the printer status and operates the printer.
Phaser 6280 Color Laser Printer Service Manual 2-37
Theory of Operation
s6280-085
Power Switch
The Power Switch turns the printer AC Power Supply On/Off.
Main Fan
The Main Fan removes heat from the printer to prevent overheating.
Electrically Erasable Programmable Read-Only Memory (EEPROM) Board
The EEPROM Board stores the printer unique information. Information on the
EEPROM Board is also stored on the Machine Control Unit (MCU) Board.
Humidity Sensor
The Humidity Sensor reads the humidity and temperature within the printer.
Interlock Switch
The Interlock Switch is a switch that cuts the +24 VDC power supply to the
HVPS or Motor upon the opening of the Front Cover.
Low-Voltage Power Supply (LVPS)
Two types of LVPS are available: 100/120V and 230V. The LVPS supplies AC
power from the power source to the Fuser Heater; the LVPS also generates
and supplies stable low-voltage DC power used for the logic circuit. The LVPS
contains a control circuit for the heater of the Fuser, in addition to the power
circuit.
2-38 Phaser 6280 Color Laser Printer Service Manual
High-Voltage Power Supply (HVPS)
s6280-086
The HVPS supplies high-voltage power to the components in the Transfer Unit
and Print Cartridge to perform charging, development, and primary transfer of
the print process to the BCR, BTR, and Developer.
Theory of Operation
Phaser 6280 Color Laser Printer Service Manual 2-39
Theory of Operation
1
2
3
s6280-087
4
5
6
Image Processor Board
The Image Processor (I/P) Board is connected to the MCU Board, which
controls the printer, including Diagnostic, Interface, and Image
Processing. The I/P Board is one of the major elements of the Phaser
6280 Printer.
The primary function of the I/P Board is to receive host data through one
of the following available ports (USB or Ethernet). The received host data
is buffered, stored, and sent to the print engine in a rasterized format.
1. Standard Memory (256 MB on-board RAM)
2. Optional Memory DIMM (should be swapped)
3. Hard Drive Connection
4. NVRAM
5. Ethernet Connection
6. USB Connection
When installing a new I/P Board in the printer, you must transfer the
following parts from the old I/P Board to the new I/P Board:
■ Memory DIMM (if installed)
■ NVRAM
2-40 Phaser 6280 Color Laser Printer Service Manual
Machine Control Unit Board
Note
s6280-088
NVRAM
The Machine Control Unit (MCU) Board controls the printing process based
on the communication with the printer Image Processor Board and
information from the Sensors or Switches. Major functions include:
1. Communicates with the Image Processor Board.
2. Receives information from the Sensors or Switches.
3. Controls the Motors in the Main Drive and PH Drive Assembly.
4. Distributes low-voltage DC power generated from the LVPS to each
component.
5. Controls the Laser Unit.
Theory of Operation
When replacing an MCU Board, ensure to transfer the NVRAM from the
old MCU Board to the new MCU Board.
Phaser 6280 Color Laser Printer Service Manual 2-41
Theory of Operation
Host (Electric Signal)
Electronic Sub-system Control Board (Electric Signal)
Machine Control Unit (Electric Signal)
Laser Unit (Laser Beams)
Electrostatic Latent On Drum (Invisible Image)
Toner Image On Drum
Toner Image On Paper
Print Image On Paper
s6280-089
Computer
I/P Board
MCU Board
Laser Unit
Print
Cartridges (4x)
Print
Cartridges (4x)
Transfer Unit
Fuser
Data Flow
The electrical signal flow for the print data from the printer I/P Board is shown
in the following diagram.
2-42 Phaser 6280 Color Laser Printer Service Manual
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