Brother DCP8025DN, DCP8025D, DCP8020, MFC8820DN, MFC8820D Service Manual
...
SERVICE MANUAL
MODEL: MFC8420/8820D/8820DN
DCP8020/8025D/8025DN
Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
© Copyright Brother Industries, Ltd. 2003
All rights reserved.
No part of this publication may be reproduced in any form or by any means without permission
in writing from the publisher.
Specifications are subject to change without notice.
Trademarks:
The brother logo is a registered trademark of Brother Industries, Ltd.
Apple, the Apple Logo, and Macintosh are trademarks, registered in the United States and
other countries, and TrueType is a trademark of Apple computer, Inc.
Microsoft and MS-DOS are registered trademarks of Microsoft Corporation.
Windows is a registered trademark of Microsoft Corporation in the U.S. and other countries.
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
PREFACE
This publication is a Service Manual covering the specifications, construction, theory of
operation, and maintenance of the Brother machine. It includes information required for field
troubleshooting and repair--disassembly, reassembly, and lubrication--so that service
personnel will be able to understand machine function, to rapidly repair the machine and order
any necessary spare parts.
To perform appropriate maintenance so that the machine is always in best condition for the
customer, the service personnel must adequately understand and apply this manual.
This manual is made up of six chapters and appendices.
CHAPTER 1: GENERAL
CHAPTER 2: INSTALLATION AND BASIC OPERATION
CHAPTER 3: THEORY OF OPERATION
CHAPTER 4: DISASSEMBLY AND RE-ASSEMBLY
CHAPTER 5: PERIODIC MAINTENANCE
CHAPTER 6: TROUBLESHOOTING
CHAPTER 7: MAINTENANCE MODE
APPENDIX 1: EEPROM CUSTOMIZING CODES
APPENDIX 2: INSTALLING THE UPDATE DATA
APPENDIX 3: FIRMWARE SWITCHS (WSW)
APPENDIX 4: CIRCUIT DIAGRAMS
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.
i
TABLE OF CONTENTS
TABLE OF CONTENTS
REGULATION............................................................................................ viii
SAFETY INFORMATION.............................................................................. x
CHAPTER 1 GENERAL...........................................................................1-1
1. OVERVIEW ............................................................................................................ 1-1
2. SPECIFICATIONS.................................................................................................. 1-3
2.1 General.............................................................................................................................1-3
2.2 General (Continued).........................................................................................................1-3
2.3 Print Media .......................................................................................................................1-4
2.4 Copy.................................................................................................................................1-4
2.5 Fax....................................................................................................................................1-5
2.6 Scanner............................................................................................................................1-6
2.7 Printer...............................................................................................................................1-6
2.8 Interfaces..........................................................................................................................1-7
2.9 Consumable Items ...........................................................................................................1-7
2.10 Network (LAN) Board (NC-9100h) ...................................................................................1-7
2.11 Computer Requirements ..................................................................................................1-8
2.12 Paper................................................................................................................................1-9
2.12.1 Type and size of paper........................................................................................................1-9
2.12.2 Recommended paper..........................................................................................................1-9
2.12.3 Paper capacity of the paper trays........................................................................................1-9
2.12.4 Paper specifications for each paper tray..........................................................................1-10
2.13 Printable Area.................................................................................................................1-11
2.13.1 PCL5e/EPSON/IBM emulation .......................................................................................... 1-11
2.13.2 PCL6/BR-Script3 emulation..............................................................................................1-14
2.14 Print Speeds with Various Settings ................................................................................1-15
2.15 Toner Cartridge Weight Information...............................................................................1-15
3. SERIAL NO. DESCRIPTIONS.............................................................................. 1-16
CHAPTER 2 INSTALLATION AND BASIC OPERATION....................... 2-1
1. CONDITIONS REQUIRED FOR INSTALLATION................................................... 2-1
1.1 Power Supply....................................................................................................................2-1
1.2 Environment .....................................................................................................................2-1
2. UNPACKING........................................................................................................... 2-2
3. INSTALL THE MACHINE........................................................................................ 2-3
3.1 For All Users.....................................................................................................................2-3
3.1.1 Install the Automatic Document Feed (ADF) support..........................................................2-4
3.1.2 Install the drum unit assembly.............................................................................................2-5
3.1.3 Load paper into the paper tray............................................................................................2-6
3.1.4 Release the scanner lock....................................................................................................2-7
3.2 Installing the Driver & Software ........................................................................................2-8
3.2.1 For USB Interface Cable Users (For Windows® 98/98SE/Me/2000 Professional/XP)........2-8
ii
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
3.2.2 For Parallel Interface Cable Users
(For Windows
3.2.3 For Windows NT
®
95/98/98SE/Me/2000 Professional/XP)...................................................2-13
®
Workstation Version 4.0 Users............................................................2-18
3.2.4 For Network Interface Cable Users
(For Windows
3.2.5 For USB Interface Cable Users (For Mac
3.2.6 For USB Interface Cable Users (For Mac
3.2.7 For Network Interface Cable Users (For Mac
3.2.8 For Network Interface Cable Users (For Mac
®
95/98/98SE/Me/NT/2000 Professional/XP)..............................................2-20
®
OS 8.6 to 9.2 Users)......................................2-23
®
OS X 10.1/10.2.1 or greater Users)...............2-24
®
OS 8.6 to 9.2 Users)................................2-25
®
OS X 10.1/10.2.1 or greater Users).........2-26
CHAPTER 3 THEORY OF OPERATION................................................. 3-1
1. ELECTRONICS ...................................................................................................... 3-1
1.1 General Block Diagram ....................................................................................................3-1
1.2 Main PCB Block Diagram.................................................................................................3-2
1.3 Main PCB .........................................................................................................................3-3
1.3.1 CPU.....................................................................................................................................3-3
1.3.2 USB.....................................................................................................................................3-3
1.3.3 IEEE 1284...........................................................................................................................3-4
1.3.4 ROM....................................................................................................................................3-4
1.3.5 Flash ROM..........................................................................................................................3-5
1.3.6 SDRAM ...............................................................................................................................3-5
1.3.7 Optional RAM......................................................................................................................3-6
1.3.8 EEPROM.............................................................................................................................3-7
1.3.9 Reset circuit ........................................................................................................................3-7
1.3.10 Engine I/O ...........................................................................................................................3-7
1.3.11 Panel I/O .............................................................................................................................3-7
1.3.12 Video I/O .............................................................................................................................3-8
1.3.13 Scanner control ...................................................................................................................3-8
1.3.14 Power supply.......................................................................................................................3-9
1.4 Engine PCB....................................................................................................................3-10
1.5 Power Supply..................................................................................................................3-11
1.5.1 Low-voltage power supply.................................................................................................3-11
1.5.2 High-voltage power supply................................................................................................3-12
2. MECHANICS ........................................................................................................ 3-13
2.1 Overview of Printing Mechanism....................................................................................3-13
2.2 Scanner Mechanism.......................................................................................................3-14
2.3 Paper Transfer ...............................................................................................................3-15
2.3.1 Paper supply .....................................................................................................................3-15
2.3.2 Paper registration..............................................................................................................3-15
2.3.3 Paper eject........................................................................................................................3-16
2.3.4 Duplex printing ..................................................................................................................3-16
2.4 Sensors ..........................................................................................................................3-17
2.4.1 Cover sensors...................................................................................................................3-17
2.4.2 Toner sensors ...................................................................................................................3-17
2.4.3 Cassette sensor / Paper empty sensor.............................................................................3-18
2.4.4 Paper eject sensor............................................................................................................3-18
2.4.5 MP-PE sensor...................................................................................................................3-19
2.4.6 Document cover sensor....................................................................................................3-19
2.4.7 Document front sensor / Document rear sensor...............................................................3-20
2.4.8 DX-sensor PCB ASSY.......................................................................................................3-20
iii
TABLE OF CONTENTS
2.4.9 Rear cover sensor.............................................................................................................3-21
2.4.10 HP sensor.........................................................................................................................3-21
2.5 Drum Unit .......................................................................................................................3-22
2.5.1 Photosensitive drum..........................................................................................................3-22
2.5.2 Primary charger.................................................................................................................3-22
2.5.3 Transfer roller....................................................................................................................3-22
2.5.4 Cleaner..............................................................................................................................3-22
2.6 Toner Cartridge ..............................................................................................................3-22
2.7 Print Process..................................................................................................................3-22
2.7.1 Charging............................................................................................................................3-22
2.7.2 Exposure stage .................................................................................................................3-23
2.7.3 Developing........................................................................................................................3-24
2.7.4 Transfer.............................................................................................................................3-24
2.7.5 Fixing stage.......................................................................................................................3-25
CHAPTER 4 DISASSEMBLY AND RE-ASSEMBLY .............................. 4-1
1. SAFETY PRECAUTIONS....................................................................................... 4-1
2. DISASSEMBLY FLOW ........................................................................................... 4-2
3. DISASSEMBLY PROCEDURE............................................................................... 4-3
3.1 AC Cord............................................................................................................................4-3
3.2 Drum Unit .........................................................................................................................4-3
3.3 Paper Tray........................................................................................................................4-4
3.4 DX Feed ASSY (MFC-8820D/8820DN, DCP-8025D/8025DN only) ..............................4-14
3.5 Access Cover / Battery...................................................................................................4-17
3.6 Driver PCB Access Cover ..............................................................................................4-18
3.7 ADF Unit.........................................................................................................................4-19
3.8 Document Scanner.........................................................................................................4-28
3.9 Panel Unit.......................................................................................................................4-33
3.10 Rear Cover C (MFC-8420, DCP-8020 only)...................................................................4-36
3.11 Outer Chute (MFC-8420, DCP-8020 only) .....................................................................4-37
3.12 Rear Cover MP ASSY / Outer Chute MP ASSY
(MFC-8820D/8820DN, DCP-8025D/8025DN only)........................................................4-38
3.13 Rear Cover L/R...............................................................................................................4-39
3.14 Side Cover L/R ...............................................................................................................4-40
3.15 Joint Cover .....................................................................................................................4-41
3.16 Front Cover ASSY (MFC-8420, DCP-8020 only) ...........................................................4-45
3.17 MP Unit (MFC-8820D/8820DN, DCP-8025D/8025DN only) ..........................................4-46
3.18 Rear Cover Sensor.........................................................................................................4-51
3.19 NCU (MFC-8420/8820D/8820DN only)..........................................................................4-52
3.20 Fixing Unit.......................................................................................................................4-53
3.21 Laser Unit .......................................................................................................................4-62
3.22 Main PCB .......................................................................................................................4-64
3.23 Base Plate / LV Insulation Sheet....................................................................................4-66
3.24 DX-Sensor PCB ASSY (MFC-8820D/8820DN, DCP-8025D/8025DN only)...................4-67
3.25 Engine PCB....................................................................................................................4-68
3.26 High-voltage PS PCB ASSY...........................................................................................4-69
3.27 Low-voltage PS PCB ASSY............................................................................................4-70
iv
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
3.28 Paper Feeder..................................................................................................................4-71
3.29 Frame L / Drive Unit .......................................................................................................7-78
3.30 Reversing Release Solenoid (MFC-8820D/8820DN, DCP-8025D/8025DN only)..........4-82
3.31 Thermistor ASSY............................................................................................................4-83
3.32 Fan Motor 60 Unit LV / Fan Motor 60 Unit......................................................................4-83
3.33 Frame R..........................................................................................................................4-84
SERVICE MANUAL
4. PACKING.............................................................................................................. 4-86
5. GUIDELINES FOR LEAD FREE SOLDER............................................................ 4-87
6. SCREW TORQUE LIST........................................................................................ 4-90
7. LUBRICATION...................................................................................................... 4-92
8. HARNESS ROUTING........................................................................................... 4-95
CHAPTER 5 PERIODIC MAINTENANCE............................................... 5-1
1. CONSUMABLE PARTS.......................................................................................... 5-1
1.1 Drum Unit .........................................................................................................................5-1
1.2 Toner Cartridge ................................................................................................................5-3
2. PERIODICAL REPLACEMENT PARTS.................................................................. 5-7
2.1 Fixing Unit.........................................................................................................................5-8
2.2 Paper Feeding Kit ...........................................................................................................5-12
3. PERIODICAL CLEANING..................................................................................... 5-14
3.1 Cleaning the Machine Exterior .......................................................................................5-14
3.2 Cleaning the Scanner.....................................................................................................5-14
3.3 Cleaning the Printer........................................................................................................5-15
3.4 Cleaning the Drum Unit ..................................................................................................5-16
3.5 Cleaning the Scanner Window.......................................................................................5-16
3.6 Cleaning the Electrical Terminals...................................................................................5-17
4. MTBF / MTTR....................................................................................................... 5-18
CHAPTER 6 TROUBLESHOOTING ....................................................... 6-1
1. INTRODUCTION .................................................................................................... 6-1
1.1 Initial Check......................................................................................................................6-1
1.2 Warnings for Maintenance Work......................................................................................6-2
1.3 Identify the Problem..........................................................................................................6-3
2. ERROR MESSAGE................................................................................................ 6-4
2.1 Error Message on the LCD...............................................................................................6-4
2.2 Error Codes Shown in the “MACHINE ERROR X
X” message........................................6-7
3. PAPER PROBLEMS............................................................................................. 6-11
3.1 Paper Loading Problems................................................................................................6-11
3.2 Original Jams..................................................................................................................6-12
3.2.1 Original is jammed in the top of the ADF unit....................................................................6-12
3.2.2 Original is jammed inside the ADF unit.............................................................................6-12
3.3 Paper Jams ....................................................................................................................6-13
3.3.1 Clearing jammed paper.....................................................................................................6 -13
3.3.2 Paper is jammed in the Duplex Tray (For MFC-8820D/8820DN, DCP-8025D/8025DN)..6-16
3.3.3 Causes & countermeasures..............................................................................................6-17
v
TABLE OF CONTENTS
3.4 Paper Feeding Problems................................................................................................6-18
4. SOFTWARE SETTING PROBLEMS .................................................................... 6-20
5. MALFUNCTIONS.................................................................................................. 6-23
6. TROUBLESHOOTING OF THE CONTROL PANEL............................................. 6-28
7. TROUBLESHOOTING OF FAX FUNCTIONS ...................................................... 6-30
8. IMAGE DEFECTS................................................................................................. 6-34
8.1 Image Defect Examples.................................................................................................6-34
8.2 Diameter of Rollers.........................................................................................................6-34
8.3 Troubleshooting Image Defect.......................................................................................6-35
8.4 Location of Grounding Contacts.....................................................................................6-53
8.4.1 Drum unit...........................................................................................................................6-53
8.4.2 Machine body & Paper tray ..............................................................................................6-53
9. INCORRECT PRINTOUT ..................................................................................... 6-54
10. NETWORK PROBLEM......................................................................................... 6-56
10.1 Installation Problem........................................................................................................6-56
10.2 Intermittent Problem .......................................................................................................6-57
10.3 TCP/IP Troubleshooting.................................................................................................6-58
10.4 UNIX Troubleshooting....................................................................................................6-58
10.5 Windows
10.6 Windows
10.7 Windows
10.8 Windows
10.9 Brother Internet Print (TCP/IP) Troubleshooting ............................................................6-60
10.10 Windows
10.11 Novell Netware Troubleshooting ....................................................................................6-61
10.12 AppleTalk Troubleshooting.............................................................................................6-62
10.13 DLC/LLC Troubleshooting..............................................................................................6-62
10.14 Web Browser Troubleshooting (TCP/IP)........................................................................6-62
10.15 Internet Fax Troubleshooting..........................................................................................6-63
®
NT/LAN Server (TCP/IP) Troubleshooting....................................................6-59
®
95/98/Me Peer to Peer Print (LPR) Troubleshooting ....................................6-59
®
95/98/Me Peer to Peer (HP JetAdmin Compatible Method) Troubleshooting........6-59
®
95/98/Me/NT 4.0/2000 Peer to Peer Print (NetBIOS) Troubleshooting........6-60
®
95/98/Me/2000/XP IPP Troubleshooting.......................................................6-60
CHAPTER 7 MAINTENANCE MODE...................................................... 7-1
1. ENTRY INTO THE MAINTENANCE MODE............................................................ 7-1
2. LIST OF MAINTENANCE–MODE FUNCTIONS..................................................... 7-2
3. DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS................... 7-4
3.1 EEPROM Parameter Initialization (Maintenance mode 01/91) ........................................7-4
3.2 Printout of Scanning Compensation Data (Maintenance mode 05).................................7-5
3.3 Placement of CCD Unit in Position for Transportation (Maintenance mode 06)..............7-7
3.4 ADF Performance Test (Maintenance mode 08) .............................................................7-7
3.5 Test Pattern 1 (Maintenance mode 09)............................................................................7-8
3.6 Firmware Switch Setting and Printout ..............................................................................7-9
3.6.1 Firmware switch setting (Maintenance mode 10)................................................................7-9
3.6.2 Printout of firmware switch data (Maintenance mode 11).................................................7-11
3.7 Operation Check of LCD (Maintenance mode 12).........................................................7-12
3.8 Operational Check of Control Panel PCB (Maintenance mode 13) ...............................7-13
3.9 Sensor Operational Check (Maintenance mode 32)......................................................7-14
3.10 Received Data Transfer Function (Maintenance mode 53)............................................7-16
vi
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
3.11 Fine Adjustment of Scan Start/End Positions (Maintenance mode 54)..........................7-18
3.12 CCD Scanner Area Setting (Maintenance mode 55) .....................................................7-20
3.13 EEPROM Customizing (Maintenance mode 74)............................................................7-21
3.14 Printing out of Machine Log Information (Maintenance mode 77)..................................7-22
3.15 Display of the Equipment’s Log Information (Maintenance mode 80)............................7-24
3.16 Machine Error Code Indication (Maintenance mode 82)................................................7-26
3.17 Output of Transmission Log to the Telephone Line (Maintenance mode 87) ................7-26
3.18 Cancellation of the Memory Security Mode (Not applicable to the Japanese version) .7-27
SERVICE MANUAL
APPENDIX 1 EEPROM CUSTOMIZING CODES ...................................A-1
APPENDIX 2 INSTALLING THE UPDATE DATA....................................A-3
1. INSTALLING THE UPDATE DATA TO THE MACHINE..........................................A-3
1.1 Connecting the Machine to Your PC ................................................................................A-3
1.2 Setting up the Machine and Your PC ...............................................................................A-3
1.3 Installing the Update Data onto the Flash ROM of the Machine ......................................A-4
2. SETTING ID CODES TO MACHINES.....................................................................A-5
2.1 Connecting the Machine to Your PC ................................................................................A-5
2.2 Setting Up the Machine and Your PC...............................................................................A-5
2.3 Running the Setup Utility..................................................................................................A-6
APPENDIX 3 FIRMWARE SWITCHS (WSW) .........................................A-7
APPENDIX 4 CIRCUIT DIAGRAMS
4.1 Main PCB Circuit Diagram (1/6).....................................................................................A-50
4.2 Main PCB Circuit Diagram (2/6).....................................................................................A-51
4.3 Main PCB Circuit Diagram (3/6).....................................................................................A-52
4.4 Main PCB Circuit Diagram (4/6).....................................................................................A-53
4.5 Main PCB Circuit Diagram (5/6).....................................................................................A-54
4.6 Main PCB Circuit Diagram (6/6).....................................................................................A-55
4.7 Driver PCB Circuit Diagram ...........................................................................................A-56
4.8 Engine PCB Circuit Diagram (1/2)..................................................................................A-57
4.9 Engine PCB Circuit Diagram (2/2)..................................................................................A-58
4.10 NCU PCB Circuit Diagram (U.S.A.)................................................................................A-59
4.11 NCU PCB Circuit Diagram (Europe) ..............................................................................A-60
4.12 NCU PCB Circuit Diagram (Asia) ...................................................................................A-61
4.13 NCU PCB Circuit Diagram (Oceania).............................................................................A-62
4.14 Control Panel PCB Circuit Diagram................................................................................A-63
4.15 Low-voltage Power Supply PCB Circuit Diagram (200V) ...............................................A-64
4.16 Low-voltage Power Supply PCB Circuit Diagram (100V) ...............................................A-65
4.17 High-voltage Power Supply PCB Circuit Diagram (200V) ..............................................A-66
4.18 High-voltage Power Supply PCB Circuit Diagram (100V) ..............................................A-67
vii
REGULATION
REGULATION
LASER SAFETY (110 - 120V MODEL ONLY)
This printer is certified as a Class I laser product under the US 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 printer does not produce
hazardous laser radiation.
Since radiation emitted inside the printer is completely confined within the protective
housing and external covers. the laser beam cannot escape form the machine during any
phase of user operation.
FDA REGULATIONS (110 - 120V MODEL ONLY)
The US 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. One of the following labels on the back of the
printer indicates compliance with the FDA regulations and must be attached to laser
products marketed in the United States.
The label for Japanese manufactured products
MANUFACTURED: K
BROTHER INDUSTRIES, LTD.
15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561,
Japan.
This product complies with FDA radiation performance
standards, 21 CFR Subchapter J.
The label for Chinese manufactured products
MANUFACTURED: C
BROTHER Corporation (Asia) Ltd.
Shenzen Buji Nan Ling Factory
Gold Garden Ind., Nan Ling Village, Buji, Rong Gang,
Shenzen, CHINA
This product complies with FDA radiation performance
standards, 21 CFR Subchapter J.
Caution
Use of controls, adjustments or performance of procedures other than those specified in
this manual may result in hazardous radiation exposure.
viii
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
IEC 825 (220-240V MODEL ONLY)
This printer is a Class I laser product as defined in IEC 825 specifications. The label
shown below is attached in countries where required.
CLASS 1LASERP RODUCT
APPAREIL Å LASER DE CLASSE 1
LASER KLASSE 1 PRODUKT
This printer has a laser diode which emits invisible laser radiation in the Laser Unit. The
Laser Unit should not be opened without disconnecting the two connectors connected with
the AC power supply and laser unit. Since the variable resistor in the laser unit is adjusted
in accordance with the standards, never touch it.
Caution
Use of controls, adjustments or performance of procedures other than those specified in
this manual 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.
ix
SAFETY INFORMATION
CAUTION FOR LASER PRODUCT (WARNHINWEIS FUR LASER DRUCKER)
CAUTION: When the machine during servicing is operated with the cover open, the
CAUTION: In case of any trouble with the laser unit, replace the laser unit itself. To
ACHTUNG: Im Falle von Störungen der Lasereinheit muß diese ersetzt werden. Das
<Location of the laser beam window>
SAFETY INFORMATION
regulations of VBG 93 and the performance instructions for VBG 93 are
valid.
prevent direct exposure to the laser beam, do not try to open the enclosure
of the laser unit.
Gehäuse der Lasereinheit darf nicht geöffnet werden, da sonst
Laserstrahlen austreten können.
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.
x
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
DEFINITIONS OF WARNINGS, CAUTIONS AND NOTES
The following conventions are used in this service manual:
SERVICE MANUAL
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.
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.
xi
CHAPTER 1 GENERAL
A
A
A
A
A
1. OVERVIEW
<Front View>
utomatic document feeder (ADF)
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
DF document support extension
Control panel
Face-down output
tray support flap
Front cover release button
Manual feed tray
(MFC-8420, DCP-8020)
Multi-purpose tray (MP tray)
(MFC-8820D/8820DN,
DCP-8025D/8025DN)
<Back View>
Paper tray (Tray #1)
Fig. 1-1
DF document output support flap
Document cover
Power switch
Front cover
DF cover
Face-up output tray
(Back output tray)
Duplex tray
(MFC-8820D/8820DN,
DCP-8025D/8025DN)
C power connector
Paper adjustment lever
for duplex printing
(MFC-8820D/8820DN,
DCP-8025D/8025DN)
External telephone line jack
Fig. 1-2
1-1
Parallel interface connec tor
Telephone line jack
USB interface connector
CHAPTER 1 GENERAL
<Inside View (Document Cover Open)>
Document cover
Scanner lock lever
Glass strip
Document guidelines
White film
Scanner glass
Fig. 1-3
1-2
2. SPECIFICATIONS
2.1 General
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
Memory Capacity
Optional Memory
Automatic Document
Paper Tray
Multi-Purpose Tray
Manual Feed Tray
Printer Type
Print Method
LCD
(Liquid Crystal
Display)
Warm-up
Power Source
Power Consumption
32 MB
1 DIMM slot; Memory expandable up to 160 MB
Up to 50 pages
250 Sheets (20 lb)
50 Sheets (20 lb) (MFC-8820D/8820DN, DCP-8025D/8025DN
only)
Single sheet (20 lb) (MFC-8420, DCP-8020 only)
Laser
Electrophotography by semiconductor laser beam scanning
22 characters x 5 lines
Max. 18 seconds at 73.4°F (23°C)
120V AC 50/60Hz (U.S.A., CANADA Version only)
Average Operating (Copying): 440 W or less (25°C)
Peak: 1090 W or less
Sleep: 14 W or less
Standby: 75 W or less (25°C)
Dimensions
Weight
Noise
2.2 General (Continued)
Temperature
Humidity
21.28 x 17.76 x 18.76 (in.)
532 x 444 x 469 (mm)
Without Drum/Toner Unit:
MFC-8420, DCP-8020: 36.6 lb/16.6 kg
MFC-8820D/8820DN, DCP-8025D/8025DN: 39.9 lb/18.1 kg
Operating: 53 dB A or less
Standby: 30 dB A or less
Operating: 50 - 90.5°F (10 - 32.5°C)
Storage: 32 - 104°F (0 - 40°C)
Storage: 20 to 80% (without condensation)
Operating: 10 to 90% (without condensation)
1-3
CHAPTER 1 GENERAL
2.3 Print Media
Paper Input
<Paper Tray>
• Paper type:
Plain paper, recycled paper and transparencies, envelopes
(Manual Feed/Multi-purpose Tray)
• Paper size:
A4, Letter, Legal, B5 (ISO), B5 (JIS), Executive, A5, A6,
B6 (ISO)
2
Weight: 16 - 28 lb (60 - 105 g/m
) (Paper Tray)
For more details, see Paper specifications for each paper
tray on page 1-10.
• Maximum paper tray capacity:
2
Approx. 250 sheets of 20 lb (80 g/m
) plain paper
• Maximum multi-purpose tray capacity:
2
Approx. 50 sheets of 20 lb (80 g/m
) plain paper
(MFC-8820D/8820DN, DCP-8025D/8025DN only)
< Manual Feed Tray/Multi-Purpose Tray >
• Paper size:
Width: 20 lb 2.75 - 8.66" (69.8 - 220.0 mm)
Height: 4.60 - 16.00" (116.0 - 406.4 mm)
2
Weight: 16 - 43 lb (60 - 161 g/m
)
Paper Output
2.4 Copy
Color/Monochrome
Copy Speed
Multiple Copies
Enlarge/Reduce
Resolution
Up to 150 sheets of plain paper (Face up print delivery to the
output paper support)
Monochrome
Up to 17 copies/minute (Letter paper)
Stacks or Sorts up to 99 pages
25% to 400% (in increments of 1%)
Max. 1200 x 600 dpi
1-4
2.5 Fax
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
Compatibility
Coding System
Modem Speed
Original Size
Scanning Width
Printing Width
Gray Scale
Polling Types
Contrast Control
Resolution
ITU-T Group 3
MH/MR/MMR/JBIG
33600-2400 bps
Automatic Fallback
ADF Width: 5.8" to 8.5" (148 mm to 216 mm)
ADF Height: 5.8" to 14.0" (148 mm to 356 mm)
Scanner Width: Max. 8.48" (212 mm)
Scanner Height: Max. 14.0" (356 mm)
8.2 inches (208 mm)
8.2 inches (208 mm)
64 levels
Standard, Sequential
Automatic/Light/Dark (manual setting)
• Horizontal 203 dot/inch (8 dot/mm)
• Vertical
• Standard 98 line/inch (3.85 line/mm)
• Fine, Photo 196 line/inch (7.7 line/mm)
• Superfine 392 line/inch (15.4 line/mm)
One-Touch Dial
Speed-Dial
Automatic Redial
Auto Answer
Communication
Source
Memory Transmission
Out of Paper
Reception
40 (20 x 2)
300 stations
One time
0, 1, 2, 3 or 4 rings
Public switched telephone network.
Up to 600/500 pages
Up to 600/500 pages
1-5
CHAPTER 1 GENERAL
2.6 Scanner
Color/Monochrome
TWAIN Compliant
WIA Compliant
Resolution
Document Size
Scanning Width
Gray Scale
Scanning Speed
Color/Monochrome
®
Yes (Windows
®
Workstation Version 4.0)
NT
Yes (Windows
95/98/98SE/Me/2000 Professional and Windows
®
XP)
Up to 9,600 x 9,600 dpi (interpolated)*
Up to 600 x 2,400 dpi (optical)
®
* Maximum 1200 x 1200 dpi scanning with Windows
XP
(resolution up to 9600 x 9600 dpi can be selected by using the
Brother scanner utility)
ADF Width: 5.8" to 8.5" (148 mm to 216 mm)
ADF Height: 5.8" to 14.0" (148 mm to 356 mm)
Scanner Glass Width: Max. 8.5" (216 mm)
Scanner Glass Height: Max. 14.0" (356 mm)
8.35 inches (212 mm)
256 levels
Color: 1.80 msec/line (Up to 300 x 300 dpi)
: 3.60 msec/line (400 x 400 dpi or higher)
Monochrome: 0.84 msec/line (ADF)
: 1.01 msec/line (Scanner Glass)
NOTE:
• Scanning directly to a networked PC is available with Windows
Professional and XP.
• OS X scanning is supported in OS X 10.2.1 or greater.
2.7 Printer
Emulation
Printer Driver
Resolution
Print Quality
Print Speed
Duplex Printing
®
98/98SE/Me/2000
®
PCL6 (Brother Printing System for Windows
HP LaserJet) and BR-Script (PostScript
®
Windows
®
NT
95/98/98SE/Me/2000 Professional/XP and Windows
Workstation Version 4.0 driver supporting Brother Native
emulation mode of
®
) Level 3
Compression mode and bi-directional capability
®
Apple
Macintosh® Quick Draw® Driver and PostScript (PPD) for
OS 8.6-9.2/OS X 10.1/10.2.1 or Greater
HQ1200 (Max. 2400 x 600 dots/inch)
Normal printing mode
Economy printing mode (saves toner usage)
Up to 17 pages/minute letter size
(when loading paper from paper tray)
Up to 8.5 images/minute: (MFC-8820D/8820DN,
DCP-8025D/8025DN only)
First Print
Up to 12 seconds (using letter size paper in paper tray)
1-6
2.8 Interfaces
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
Interface
Parallel
USB
NOTE:
• Please make sure that you use a Hi-Speed USB 2.0 certified cable if your computer uses a
Hi-Speed USB 2.0 interface.
• Even if your computer has a USB 1.1 interface you can connect the MFC.
• To meet FCC/CISPR emission requirements for the MFC, you must attach the included
filter core and cable tie to the parallel interface cable.
2.9 Consumable Items
Toner Cartridge Life
Expectancy
Drum Unit Life
Expectancy
Recommended Cable
A bi-directional shielded parallel cable that is IEEE 1284 compliant
and not longer than 6 feet (2 m).
A Hi-Speed USB 2.0 cable that is not longer than 6 feet (2 m).
TN-530: Standard Toner Cartridge - Up to 3,300* pages
TN-560: High Yield Toner Cartridge - Up to 6,500* pages
*(when printing letter size or A4 paper at 5% print coverage)
NOTE:
Toner life expectancy will vary depending upon the type of
average print job.
Up to 20,000 pages/drum unit (DR-500)
NOTE:
There are many factors that determine the actual drum life, such
as temperature, humidity, type of paper, toner you use and
number of pages per print job.
2.10 Network (LAN) Board (NC-9100h)
MFC-8420/8820D
(Option)
MFC-8820DN
(Standard)
DCP-8020/8025D
(Option)
When you add the optional Network (LAN) Board (NC-9100h), you
can connect your MFC into the network to use the Internet FAX,
Network Scanner, Network Printer and Network Management
software operations for small workgroups.
NOTE:
SMTP/POP3 E-mail Services are required for Internet Fax.
Support for:
Windows
4.X, 5.X Mac OS 8.6 - 9.2, X 10.0-10.2.1 or Greater Ethernet
10/100 BASE-TX Auto Negotiation TCP/IP, IPX/SPX,
AppleTalk, DLC/LLC RARP, BOOTP, DHCP, APIPA,
NetBIOS, WINS LPR/LPD, Port9100, SMTP/POP3
SMB(NetBIOS/ IP), IPP, SSDP, Rendezvous, FTP MIBII as
well as Brother private MIB TE LNET, SNMP, HTTP, TFTP
Included Utilities:
BRAdmin Professional and Web Based
Management
NOTE:
• Scanning directly to a networked PC is not supported in
Windows
• BRAdmin Professional is not supported in Mac OS.
®
95/98/Me/NT® 4.0/2000/XP Novell NetWare 3.X,
®
95, NT® and Mac OS.
1-7
CHAPTER 1 GENERAL
2.11 Computer Requirements
Computer Platform &
Operating
System Version
95, 98,
98SE
Me
Windows®
Operating
System
Apple®
Macintosh
Operating
System
NT®
Workstation
4.0
2000
Professional
XP
OS 8.6 - 9.2
(Printing,
Scanning
and PC-FAX
Send Only)
Mac OS X
®
10.1/10.2.1
or greater
(Printing,
Scanning
PC-FAX
Send and
Remote
Setup Only)
Minimum System Requirements
Processor
Minimum
Speed
Pentium
75MHz
Minimum
RAM
24 MB 32 MB
Pentium
150MHz
32 MB 64 MB
Pentium
75MHz
Pentium
133MHz
64 MB 128 MB
Pentium
233MHz
32 MB 64 MB
All base
models meet
minimum
Requirements
*2
128 MB 160 MB
Recommended
RAM
Available Hard Disk
Space
Driver
Application
Software
100 MB
80 MB
180 MB
50 MB 200 MB
*1
NOTE:
USB is not supported under Windows
®
95 or Windows NT® WS 4.0.
All registered trademarks referenced herein are the property of their respective companies.
For the latest drivers, go to the Brother Solutions Center at http://solutions.brother.com/
*1
Application software is different for Windows® and Macintosh®.
*2
Scanning is supported in 10.2.1 or greater.
1-8
2.12 Paper
2.12.1 Type and size of paper
The machine loads paper from the installed paper tray, manual feed tray, multi-purpose tray or
optional lower tray.
Tray type Model name
Paper tray (Tray #1) MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
Manual feed tray MFC-8420, DCP-8020
Multi-purpose tray (MP tray) MFC-8820D/8820DN, DCP-8025D/8025DN
Optional lower tray (Tray #2) Option for MFC-8420/8820D/8820DN,
2.12.2 Recommended paper
Plain Paper: Plain Paper: Xerox 4200DP 20 lb
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
DCP-8020/8025D/8025DN
Hammermill Laser Paper 24 lb
Transparency: 3M CG 3300
Labels: Avery laser label # 5160
2.12.3 Paper capacity of the paper trays
Paper size Number of sheets
Multi-purpose tray (MP tray)
(MFC-8820D/8820DN,
DCP-8025D/8025DN)
Manual feed tray
(MFC-8420, DCP-8020)
Paper tray (Tray #1) A4, Letter, Legal, B5 (ISO),
Optional lower tray (Tray #2) A4, Letter, Legal, B5 (ISO),
Width: 69.8 to 220 mm
(2.75 to 8.66 in.)
Height: 116 to 406.4 mm
(4.57 to 16.0 in.)
Width: 69.8 to 220 mm
(2.75 to 8.66 in.)
Height: 116 to 406.4 mm
(4.57 to 16.0 in.)
B5 (JIS), Executive, A5, A6,
B6 (ISO)
B5 (JIS), Executive, A5, B6
(ISO)
50 sheets
(80 g/m
2
or 20 lb)
Single sheet
250 sheets
(80 g/m
250 sheets
(80 g/m
2
or 20 lb)
2
or 20 lb)
Duplex printing A4, Letter, Legal —
1-9
CHAPTER 1 GENERAL
2.12.4 Paper specifications for each paper tray
Paper types
Paper weights
Model
MFC-8420
DCP-8020
MFC-8820D/8820DN
DCP-8025D/8025DN
Plain paper, Bond paper,
Multi-purpose tray N/A
Recycled paper,
Envelope
Transparency
*1
, Labels, and
*2
Plain paper, Bond paper,
Manual feed tray
Recycled paper,
Envelope, Labels, and
N/A
Transparency
Paper tray Plain paper, Recycled paper, and Transparency*2
Optional lower tray Plain paper, Recycled paper, and Transparency
Multi-purpose tray
N/A
Manual feed tray 60 to 161 g/m2
(16 to 43 lb)
60 to 161 g/m2
(16 to 43 lb)
N/A
Paper tray 60 to 105 g/m2 (16 to 28 lb)
2
Optional lower tray 60 to 105 g/m
Multi- purpose tray
(16 to 28 lb)
Width: 69.8 to 220 mm
(2.75 to 8.66 in.)
N/A
Height: 116 to 406.4 mm
(4.57 to 16.0 in.)
*2
Manual feed tray Width: 69.8 to 220 mm
Paper sizes
Paper tray A4, Letter, Legal, B5 (ISO), B5 (JIS), Executive, A5,
Optional lower Tray A4, Letter, Legal, B5 (ISO), B5 (JIS), Executive, A5,
*1 Up to 3 envelopes
*2 Up to 10 sheets
NOTE:
Remove each transparency immediately.
(2.75 to 8.66 in.)
N/A
Height: 116 to 406.4 mm
(4.57 to 16.0 in.)
A6, B6 (ISO)
B6 (ISO)
1-10
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
CAUTION:
!
When you are choosing print media, be sure to follow the information given below to prevent
any paper jams, print quality problems or machine damage;
• It is recommended to use long-grained paper for the best print quality. If short-grained
paper is being used, it might be the cause of paper jams.
• Use neutral paper. Do not use acid paper to avoid any damage to the drum unit.
• Avoid using coated paper such as vinyl coated paper.
• Avoid using preprinted or highly textured paper.
• It is recommended to use labels or transparencies which are designed for use in laser
printers.
• Avoid feeding labels with the carrier sheet exposed, or the machine will be damaged.
• Before loading paper with holes such as organizer sheets, be sure to fan the stack well.
• Do not use organizer sheets that are stuck together. The glue that is used might caused
damaged to the machine.
• When printing on the back of pre-printed paper, if the paper is curled, be sure to straighten
the paper as much as possible.
• Different types of paper should not be loaded at the same time in the paper tray to avoid
any paper jams or misfeeds.
2.13 Printable Area
2.13.1 PCL5e/EPSON/IBM emulation
The figure below shows the printable area each emulation guarantees when printing on Portrait
and Landscape.
Portrait
G
E
G
F
Physical page
Printable area
Logical page
E
B
D
G
B Physical page length
D
F
Maximum logical page length
Distance from edge of physical page to
edge of logical page
F
G
C
A
1-11
CHAPTER 1 GENERAL
The table below shows the printable areas when printing on Portrait for each paper size.
Size A B C D E F G
Letter
Legal
Folio
Executive
A 4
A 5
A 6
B 5 (JIS)
B 5 (ISO)
B 6 (ISO)
COM10
MONARCH
C 5
DL
NOTE:
• The paper sizes indicated here should confirm to the nominal dimensions specified by JIS
except B5 (ISO).
• The dot size is based on 300 dpi resolution.
215.9 mm
8.5”
(2,550 dots)
215.9 mm
8.5”
(2,550 dots)
215.9 mm
8.5”
(2,550 dots)
184.15 mm
7.25”
(2,175 dots)
210.0 mm
8.27”
(2,480 dots)
148.5 mm
5.85”
(1,754 dots)
105.0 mm
4.13”
(1,240 dots)
182.0 mm
7.1”
(2,130 dots)
176.0 mm
6.93”
(2,078 dots)
125.0 mm
4.92”
(1,476 dots)
104.78 mm
4.125”
(1,237 dots)
98.43 mm
3.875”
(1,162 dots)
162.0 mm
6.38”
(1,913 dots)
110.0 mm
4.33”
(1,299 dots)
279.4 mm
11.0”
(3,300 dots)
355.6 mm
14.0”
(4,200 dots)
330.2mm
13.0”
(3,900 dots)
266.7 mm
10.5”
(3,150 dots)
297.0 mm
11.69”
(3,507 dots)
210.0 mm
8.27”
(2,480 dots)
148.5 mm
5.85”
(1,754 dots)
257.0 mm
10.11”
(3,033 dots)
250.0 mm
9.84”
(2,952 dots)
176.0 mm
6.93”
(2,078 dots)
241.3 mm
9.5”
(2,850 dots)
190.5 mm
7.5”
(2,250 dots)
229.0 mm
9.01”
(2,704 dots)
220.0 mm
8.66”
(2,598 dots)
203.2 mm
8.0”
(2,400 dots)
203.2 mm
8.0”
(2,400 dots)
203.2 mm
8.0”
(2,400 dots)
175.7 mm
6.92”
(2,025 dots)
198.0 mm
7.79”
(2,338 dots)
136.5 mm
5.37”
(1,612 dots)
93.0 mm
3.66”
(1,098 dots)
170.0 mm
6.69”
(2,007 dots)
164.0 mm
6.46”
(1,936 dots)
164.0 mm
4.44”
(1,334 dots)
92.11 mm
3.63”
(1,087 dots)
85.7 mm
3.37”
(1,012 dots)
150.0 mm
5.9”
(1,771 dots)
98.0 mm
3.86”
(1,157 dots)
279.4 mm
11.0”
(3,300 dots)
355.6 mm
14.0”
(4,200 dots)
330.2mm
13.0”
(3,900 dots)
266.7 mm
10.5”
(3,150 dots)
297.0 mm
11.69”
(3,507 dots)
210.0 mm
8.27”
(2,480 dots)
148.5 mm
5.85”
(1,754 dots)
257.0 mm
10.11”
(3,033 dots)
250.0 mm
9.84”
(2,952 dots)
176.0 mm
6.93”
(2.078 dots)
241.3 mm
9.5”
(2,850 dots)
190.5 mm
7.5”
(2,250 dots)
229.0 mm
9.01”
(2,704 dots)
220.0 mm
8.66”
(2,598 dots)
6.35 mm
0.25”
(75 dots)
á
á
6.35 mm
0.25”
(75 dots)
6.01 mm
0.24”
(71 dots)
á
á
á
á
á
6.35 mm
0.25”
(75 dots)
á
6.01 mm
0.24”
(71 dots)
á
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
1-12
Landscape
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
G
E
G
G
F
Physical page
Printable area
E
D
B
G
B Physical page length
D Maximum logical page length
F Distance from edge of physical
F
Logical page
page to edge of logical page
C
A
1-13
CHAPTER 1 GENERAL
The table below shows the printable areas when printing on Landscape for each paper size.
Size A B C D E F G
Letter
Legal
Folio
Executive
A 4
A 5
A 6
B 5 (JIS)
B 5 (ISO)
B 6 (ISO)
COM10
MONARCH
C 5
DL
NOTE:
• The paper sizes indicated here should confirm to the nominal dimensions specified by JIS
except B5 (ISO).
• The dot size is based on 300 dpi resolution.
279.4 mm
11.0”
(3,300 dots)
355.6 mm
14.0”
(4,200 dots)
330.2mm
13.0”
(3,900 dots)
266.7 mm
10.5”
(3,150 dots)
297.0 mm
11.69”
(3,507 dots)
210.0 mm
8.27”
(2,480 dots)
148.5 mm
5.85”
(1,754 dots)
257.0 mm
10.11”
(3,033 dots)
250.0 mm
9.84”
(2,952 dots)
176.0 mm
6.93”
(2,078 dots)
241.3 mm
9.5”
(2,850 dots)
190.5 mm
7.5”
(2,250 dots)
229 mm
9.01”
(2,704 dots)
220 mm
8.66”
(2,598 dots)
215.9 mm
8.5”
(2,550 dots)
215.9 mm
8.5”
(2,550 dots)
215.9 mm
8.5”
(2,550 dots)
184.15 mm
7.25”
(2,175 dots)
210.0 mm
8.27”
(2,480 dots)
148.5 mm
5.85”
(1,754 dots)
105.0 mm
4.13”
(1,240 dots)
182.0 mm
7.1”
(2,130 dots)
176.0 mm
6.93”
(2,078 dots)
125.0 mm
4.92”
(1,476 dots)
104.78 mm
4.125”
(1,237 dots)
98.43 mm
3.875”
(1,162 dots)
162 mm
6.38”
(1,913 dots)
110 mm
4.33”
(1,299 dots)
269.3 mm
10.6”
(3,180 dots)
345.5 mm
13.6”
(4,080 dots)
320.0mm
12.6”
(3,780 dots)
256.6 mm
10.1”
(3,030 dots)
287.0 mm
11.2”
(3,389 dots)
200.0mm
7.87”
(2,362 dots)
138.5 mm
5.45”
(1,636 dots)
247.0 mm
9.72”
(2,916 dots)
240.0 mm
9.44”
(2,834 dots)
166.4 mm
6.55”
(1,960 dots)
231.1 mm
9.1”
(2,730 dots)
180.4 mm
7.1”
(2,130 dots)
219.0 mm
8.62”
(2,586 dots)
210.0 mm
8.26”
(2,480 dots)
215.9 mm
8.5”
(2,550 dots)
215.9 mm
8.5”
(2,550 dots)
215.9 mm
8.5”
(2,550 dots)
184.15 mm
7.25”
(2,175 dots)
210.0 mm
8.27”
(2,480 dots)
148.5 mm
5.85”
(1,754 dots)
105.0 mm
4.13”
(1,240 dots)
182.0 mm
7.1”
(2,130 dots)
176.0 mm
6.93”
(2,078 dots)
125.0 mm
4.92”
(1,476 dots)
104.78 mm
4.125”
(1,237 dots)
98.43 mm
3.875”
(1,162 dots)
162 mm
6.38”
(1,913 dots)
110 mm
4.33”
(1,299 dots)
5.0 mm
0.2”
(60 dots)
á
á
5.0 mm
0.2”
(60 dots)
4.8 mm
0.19”
(59 dots)
á
á
á
á
á
5.0 mm
0.2”
(60 dots)
á
4.8 mm
0.19”
(59 dots)
á
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
0 mm
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
4.2 mm
0.16”
(50 dots)
2.13.2 PCL6/BR-Script3 emulation
You can not print within 4.2 mm (50dots in 300 dpi mode) on all four sides of the paper.
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2.14 Print Speeds with Various Settings
Print speed of the machine is up to 16/17 ppm when loading A4 or Letter size paper from the
paper tray in the plain paper mode.
Actual print speed varies depending on the media type or paper size as shown in the tables
below;
<A4 / Letter size>
Media type setting All models
Transparencies Up to 16/17 ppm
Thin Paper Up to 16/17 ppm
Plain paper, Env.Thin Up to 16/17 ppm
Thick Paper, Envelopes Up to 16/17 ppm
Thicker/Bond Paper, Env.Thick 4 ppm *
<Smaller size than A4 or Letter>
Media type setting All models
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
Transparency Up to 16/17 ppm
Thin Paper Up to 16/17 ppm
Plain paper, Env.Thin 8 ppm after 5 min. have passed.
Thick Paper, Envelopes 8 ppm after 30 sec. have passed.
Thicker/Bond Paper, Env.Thick 4 ppm *
*The print speed may vary according to conditions, such as paper size and paper tray.
NOTE:
• When a smaller size paper than A4 or Letter is printed, the temperature on both edges of
the fixing unit is much higher than the temperature on the center of the unit where the paper
is fed depending on the setting or model. Therefore, the print speed is slowed in order to
decrease the temperature on the edges after the specified time, it is maximum print speed
when you first start printing.
• Max. speed is 16/17 ppm or more. It varies depending on the paper size.
2.15 Toner Cartridge Weight Information
Toner Cartridge Weight (approx weight)
Brand new Toner Cartridge Weight 827.5g 772.5g
Toner Weight at Brand New Toner Cartridge 197.5±2.5g 142.5±2.5g
Toner Cartridge Weight at Toner Near Empty 720-725g 720-725g
Remain Toner Weight at Toner Near Empty 90-95g 90-95g
Toner Cartridge Weight at Toner Empty 710-715g 710-715g
Remain Toner Weight at Toner Empty 80-85g 80-85g
You can print 500 to 600 pages with 10g toner.
*Without yellow protector
*Toner cartridge weight may vary within 2 to 3g depending on the cartridge weight.
TN7600/TN560 TN7300/TN530
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CHAPTER 1 GENERAL
3. SERIAL NO. DESCRIPTIONS
The descriptions below show how to understand the meanings of the numbers printed on the
labels or bag of the machine and machine parts:
< ID for production month >
A: January B: February C: March D: April
E: May F: June G: July H: August
J: September K: October L: November M: December
< ID for year >
3: 2003 4: 2004
< ID for factory >
9: Kariya Plant A: Mie Brother C: BIUK
J: Buji Nan Ling Factory
(1) Machine: Printed on the label attached on the rear of the main body
<Example>
(2) Process unit: Imprinted on the aluminum bag
<MODEL NO.>
< SERIAL NO. >
U 6 0 6 6 1 E 3 J 1 1 1 0 1 1
FACTORY ID NO.
YEAR
MONTH
SEQUENTIAL NO.
(Drum unit with toner cartridge)
3 A 1 1 J A
YEAR
MONTH
DATE
FACTORY ID NO.
(3) Drum unit: Printed on the bar code label attached inside the drum unit
PRODUCTION
LINE NO.
A 3 9 5 1 0 0 1 0 4 A
MONTH
YEAR
TONER VOLUME
FACTORY ID NO.
SERIAL NO.
PRODUCT LINE NO.
1-16
MFC-8420/8820D/8820DN, DCP-8020/8025D/8025DN
SERVICE MANUAL
(4) Toner cartridge: Imprinted on the aluminum bag
3 A 3 0 J
Printed on the bar code label attached on the toner cartridge
CARTRIDGE
PRODUCTION INFO.
(5) Laser unit: On the laser unit
YEAR
MONTH
MONTH
DATE
FACTORY ID NO.
M 3 9 A 0 0 0 1 9 9 A
YEAR
FACTORY ID NO.
SERIAL NO.
TONER VOLUME
PRODUCT LINE NO.
2 8 0 0 1
LASER UNIT NO. 8: LJ7516001 Las er Uni t ZL2
FACTORY ID NO.
PRODUCTION LOT NO.
1: Kariya Plant
2: Buji Nan Ling Factory
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