Brother DCP-8080DN Manuale utente
Confidential
Laser FAX/MFC
SERVICE MANUAL
Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
January 2009
SM-FAX105
MODEL:
DCP-8080DN/8085DN
MFC-8480DN/8880DN/8890DW
tial
PREFACE
This service manual contains basic information required for after-sales service of the Laser
Multi-Function Center (hereinafter referred to as "the machine"). This information is vital to the
service personnel to maintain the high printing quality and performance of the machine.
This service manual covers the DCP-8080DN/8085DN, MFC-8480DN/8880DN/8890DW
machines.
This manual consists of the following chapters:
CHAPTER 1: SPECIFICATIONS
Provides specifications of each model, which enables you to make a comparison of the
different models.
CHAPTER 2: THEORY OF OPERATION
Gives an overview of the printing mechanisms as well as the sensors, actuators, and control
electronics. It aids in understanding the basic principles of operations as well as locating
defects for troubleshooting.
CHAPTER 3: ERROR INDICATION AND TROUBLESHOOTING
Details of error messages and codes that the incorporated self-diagnostic function of the
machine will display if any error or malfunction occurs. If any error message appears, refer
to this chapter to find which parts should be checked or replaced.
The latter half of this chapter provides sample problems that could occur in the main sections
of the machine and related troubleshooting procedures.
CHAPTER 4: PERIODIC MAINTENANCE
Details of consumable parts and periodical maintenance parts. This chapter also covers
procedures for disassembling and assembling periodical maintenance parts.
CHAPTER 5: DISASSEMBLY/REASSEMBLY
Details of procedures for disassembling and assembling of the machine together with related
notes. The disassembly order flow provided enables you to see at a glance the quickest way
to get to parts involved.
At the start of a disassembly job, you can check the disassembly order flow that guides you
through a shortcut to get to the object parts.
This chapter also covers screw tightening torques and lubrication points to which the
specified lubrications should be applied during assembly jobs.
CHAPTER 6: ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED
AFTER PARTS REPLACEMENT
Details of adjustments and updating of settings, which are required if the main PCB and
some other parts have been replaced. This chapter also covers how to update the firmware.
CHAPTER 7: SERVICE MODE
Describes the maintenance mode which is exclusively designed for the purpose of checking
the settings and adjustments using the keys on the panel.
This chapter also covers hidden function menus, which activate settings and functions or
reset the parts life.
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APPENDIX 1: FIRMWARE SWITCHES (WSW)
APPENDIX 2: DELETION OF USER SETTING INFORMATION, etc.
Provides instructions on how to delete such as user setting information recorded in the
machine.
APPENDIX 3: SERIAL NUMBERING SYSTEM
APPENDIX 4: SCREW CATALOGUE
APPENDIX 5: REFERENCES
APPENDIX 6: GLOSSARY
Information in this manual is subject to change due to improvement or redesign of the product.
All relevant information in such cases will be supplied in service information bulletins (Technical
Information).
A thorough understanding of this printer, based on information in this service manual and
service information bulletins, is required for maintaining its print quality performance and for
improving the practical ability to find the cause of problems.
iii Confidential
REGULATION
For Europe and Other countries
■Radio interference (220 to 240 volt model only)
This machine follows EN55022 (CISPR Publication 22)/Class B.
Before you use this product, make sure that you use one of the following interface cables.
(1) A shielded parallel interface cable with twisted-pair conductors and that it is marked
IEEE 1284 compliant.
(2) A USB cable.
The cable must not be more than 2 meters long.
■IEC 60825-1 specification (220 to 240 volt model only)
This machine is a Class 1 laser product as defined in IEC 60825-1 specifications. The label
shown below is attached in countries where it is needed.
This machine has a Class 3B laser diode which produces invisible laser radiation in the laser
unit. You should not open the laser unit under any circumstances.
Caution
Use of controls or adjustments or performance of procedures other than those specified in
this User's Guide may result in hazardous radiation exposure.
For Finland and Sweden
LUOKAN 1 LASERLAITE
KLASS 1 LASER APPARAT
Varoitus!
Laitteen käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa altistaa
käyttäjän turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.
Varning
Om apparaten används på annat sätt än i denna Bruksanvisning specificerats, kan
användaren utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass 1.
CLASS 1 LASER PRODUCT
APPAREIL À LASER DE CLASSE 1
LASER KLASSE 1 PRODUKT
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■Internal laser radiation
Maximum radiation power: 5 mW
Wave length: 770 - 810 nm
Laser class: Class 3B
■EU Directive 2002/96/EC and EN50419
(European Union only)
This equipment is marked with the above recycling symbol. It means that at the end of the
life of the equipment you must dispose of it separately at an appropriate collection point and
not place it in the normal domestic unsorted waste stream. This will benefit the environment
for all. (European Union only)
Confidential
For USA and Canada
■Federal Communications Commission (FCC) Declaration of Conformity
(For USA)
Responsible Party: Brother International Corporation
100 Somerset Corporate Boulevard
P.O. Box 6911
Bridgewater, NJ 08807-0911
USA
Telephone: (908) 704-1700
declares, that the products
Product name: Laser Printer DCP-8080DN/8085DN, MFC-8480DN/8880DN/
8890DW
complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, 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 receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
Important
A shielded interface cable should be used to ensure compliance with the limits for a Class B
digital device. Changes or modifications not expressly approved by Brother Industries, Ltd.
could void the user's authority to operate the equipment.
vi Confidential
■Industry Canada Compliance Statement (For Canada)
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.
■Laser Safety (110 to 120 volt model only)
This machine is certified as a Class 1 laser product under the U.S. Department of Health and
Human Services (DHHS) Radiation Performance Standard according to the Radiation
Control for Health and Safety Act of 1968. This means that the machine does not produce
hazardous laser radiation.
Since radiation emitted inside the machine is completely confined within protective housings
and external covers, the laser beam cannot escape from the machine during any phase of
user operation.
■FDA Regulations (110 to 120 volt model only)
The U.S. Food and Drug Administration (FDA) has implemented regulations for laser
products manufactured on and after August 2, 1976. Compliance is mandatory for products
marketed in the United States. The following label on the back of the machine indicates
compliance with the FDA regulations and must be attached to laser products marketed in the
United States.
■Internal laser radiation
Maximum radiation power: 5 mW
Wave length: 770 - 810 nm
Laser class: Class 3B
MANUFACTURED:
Brother Technology (Shenzhen) Ltd.
NO6 Gold Garden Ind., Nanling Buji, Longgang, Shenzhen, China
This product complies with FDA performance standards for laser products except for
deviations pursuant to Laser Notice No.50, dated July 26, 2001.
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SAFETY INFORMATION
■Caution for Laser Product (WARNHINWEIS fur Laser drucker)
CAUTION: When the machine during servicing is operated with the cover open, the
regulations of VBG 93 and the performance instructions for VBG 93 are
valid.
CAUTION: In case of any trouble with the laser unit, replace the laser unit itself. To
prevent direct exposure to the laser beam, do not try to open the enclosure
of the laser unit.
ACHTUNG: Im Falle von Störungen der Lasereinheit muß diese ersetzt werden. Das
Gehäuse der Lasereinheit darf nicht geöffnet werden, da sonst
Laserstrahlen austreten können.
<Location of the laser beam window>
■ADDITIONAL INFORMATION Additional Information
When servicing the optical system of the printer, be careful not to place a screwdriver or
other reflective object in the path of the laser beam. Be sure to take off any personal
accessories such as watches and rings before working on the printer. A reflected beam,
though invisible, can permanently damage the eyes.
Since the beam is invisible, the following caution label is attached on the laser unit.
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■Definitions of Warnings, Cautions and Notes
The following conventions are used in this service manual:
Mark Contents
Warnings tell you what to do to prevent possible personal injury.
Electrical Hazard icons alert you to a possible electrical shock.
Hot Surface icons warn you not to touch machine parts that are hot.
Cautions specify procedures you must follow or avoid to prevent
possible damage to the machine or other objects.
Note Note Notes tell you useful tips when servicing the machine.
Memo Memo Memo tells you bits of knowledge to help understand the
machine.
WARNING
Indicates warnings that must be observed to prevent possible personal injury.
CAUTION:
Indicates cautions that must be observed to service the printer properly or prevent
damage to the printer.
Note :
• Indicates notes and useful tips to remember when servicing the printer.
**Listed below are the various kinds of "WARNING" messages included in this manual
WARNING
Always turn off the power switch and unplug the power cord from the power outlet
before accessing any parts inside the printer.
WARNING
Some parts inside the printer are extremely hot immediately after the printer is used.
When opening the front cover or back cover to access any parts inside the printer,
never touch the shaded parts shown in the following figures.
ix Confidential
WARNING
If you analyze malfunctions with the power plug inserted into the power outlet, special
caution should be exercised even if the power switch is OFF because it is a single
pole switch.
WARNING
DO NOT use flammable substances, any type of spray or any organic solvent/liquids
contains alcohol or ammonia to clean the inside or outside of the machine.
Doing this may cause a fire or electrical shock.
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