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.
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PREFACE
This Service Manual is intended for use by service personnel and details the specifications,
construction, theory of operation, and maintenance for the Brother machines noted on the front
cover. It includes information required for troubleshooting and service--disassembly, reassembly,
and lubrication--so that service personnel will be able to understand equipment function, repair the
equipment in a timely manner and order spare parts as necessary.
To perform appropriate maintenance so that the machine is always in the best possible condition
for the customer, service personnel must adequately understand and apply this manual.
HOW THIS MANUAL IS ORGANIZED
This manual is made up of nine chapters and appendices.
CHAPTER 1 PARTS NAMES AND FUNCTIONS
Contains external views and names of components and describes their functions. Information
about the keys on the control panel is included to help you check operation or make adjustments.
CHAPTER 2 SPECIFICATIONS
Lists the specifications of each model, which enables you to make a comparison of different
models.
CHAPTER 3 THEORY OF OPERATION
Gives an overview of the scanning and printing mechanisms as well as the sensors, actuators, and
control electronics. It aids in understanding the basic principles of operation as well as locating
defects for troubleshooting.
CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR
Describes how to transfer data left in the machine to be sent for repair. The service personnel
should instruct end users to follow the transfer procedure given in this chapter if the machine at the
user site cannot print received data due to the printing mechanism defective. End users can
transfer received data to another machine to prevent data loss.
CHAPTER 5 DISASSEMBLY/REASSEMBLY AND LUBRICATION
Details procedures for disassembling and reassembling the machine together with related notes.
The disassembly order flow provided enables you to see at a glance the quickest way to get to
component(s) involved.
At the start of a disassembly job, you check a disassembly order flow that guides you through a
shortcut to the object components.
This chapter also covers screw tightening torques and lubrication points to which the specified
lubricants should be applied during reassembly jobs.
CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS
REPLACEMENT
Details adjustments and updating of settings, which are required if the head/carriage unit, main
PCB and some other parts have been replaced.
CHAPTER 7 CLEANING
Provides cleaning procedures not covered by the User's Manual. Before starting any repair work,
clean the machine as it may solve the problem concerned.
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CHAPTER 8 MAINTENANCE MODE
Describes the maintenance mode which is exclusively designed for the purpose of checks, settings
and adjustments using the keys on the control panel.
In the maintenance mode, you can update memory (EEPROM: electrically erasable programmable
read-only memory) contents for optimizing the drive conditions of the head/carriage unit, paper
feed roller or paper ejection roller (if they have been replaced) or for setting the CCD scanner area,
for example. You can also customize the EEPROM according to the shipment destination of the
machine concerned. In addition, you can perform operational checks of the LCD, control panel
PCB or sensors, perform a print test, display the log information or error codes, and modify
firmware switches (WSW).
CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING
Details error messages and codes that the incorporated self-diagnostic functions display if any
error or malfunction occurs. If any error message appears, refer to this chapter to find which
components 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. This will help service personnel pinpoint and
repair defective components.
APPENDIX 1 SERIAL NUMBERING SYSTEM
Shows the location of serial number labels put on some parts and lists the coding information
pertaining to the serial numbers.
APPENDIX 2 FIRMWARE INSTALLATION
Provides instructions on how to update firmware stored in the flash ROM on the main PCB or load
firmware to a new main PCB from the host PC.
No hardware replacement is required for updating.
APPENDIX 3 CUSTOMIZING CODES ACCORDING TO SHIPPING DESTINATION
Lists the customizing codes for the various preferences exclusively designed for each destination
(e.g. language). Those codes are stored in the memory (EEPROM) mounted on the main PCB. If
the main PCB is replaced with a new one, therefore, you will need to set the proper customizing
codes with the machine in the maintenance mode.
APPENDIX 4 FIRMWARE SWITCHES (WSW)
Describes the functions of the firmware switches, which can be divided into two groups: one is for
customizing preferences designed for the shipping destination (as described in Appendix 3) and
the other is for modifying preferences that match the machine to the environmental conditions.
Use the latter group if the machine malfunctions due to mismatching.
APPENDIX 5 WIRING DIAGRAM
Provides the wiring diagram that helps you understand the connections between PCBs.
APPENDIX 6 CIRCUIT DIAGRAMS
Provides the circuit diagrams of the NCU PCB and power supply PCB.
APPENDIX 7 VIEWING THE EVENT LOG FILE
When installing the printer driver, the installer logs events that occur during the installation
process in the event log file. This appendix views a sample of the event log file. Selecting Start |
Program | Brother | MFL-Pro Suite model name | Installation Diagnostics reads out the event log
file.
This manual describes the models and their versions destined for major countries.
The specifications and functions are subject to change depending upon each destination.
9.2.4.6 Network problem ..........................................................................................9-49
9.2.4.7 Troubleshooting of the control panel ............................................................ 9-56
X" messages ...........................9-4
9.2.4.8 Troubleshooting of fax functions ..................................................................9-58
APPENDIX 1 SERIAL NUMBERING SYSTEM
APPENDIX 2 FIRMWARE INSTALLATION
A2.1 INSTALLING THE UPDATE DATA TO THE MACHINE..................................APP. 2-1
A2.2 SETTING ID CODES TO MACHINES..............................................................APP. 2-7
APPENDIX 3 CUSTOMIZING CODES ACCORDING TO SHIPPING DESTINATION
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APPENDIX 4 FIRMWARE SWITCHES (WSW)
APPENDIX 5 WIRING DIAGRAM
APPENDIX 6 CIRCUIT DIAGRAMS
NCU PCB
POWER SUPPLY PCB 100V
POWER SUPPLY PCB 200V
APPENDIX 7 VIEWING THE EVENT LOG FILE
APPENDIX 8 READMARKS
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SAFETY PRECAUTIONS
To use the machine safely
Please keep these instructions for later reference and read them before attempting any maintenance.
NOTE: If there are faxes in the machine's memory, you need to print them or save them before you
turn off the power and unplug the machine.
WARNING
There are high voltage electrodes inside the machine.
Before you clean the inside of the machine, make sure
you have unplugged the telephone line cord first and
then the power cord from the AC power outlet.
Do not handle the plug with wet hands.
Doing this might cause an electrical shock.
After you use the machine, some
internal parts are extremely HOT!
To prevent injuries, be careful not to
put your fingers in the areas shown
in the illustration.
The fuser unit is marked with a caution label.
Please do not remove or damage the label.
To prevent injuries, be careful not to put your
hands on the edge of the machine under the
scanner cover.
To prevent injuries, be careful not to
put your fingers in the area shown in
the illustrations.
Do not use a vacuum cleaner to clean up scattered toner. Doing this might cause the toner dust to
ignite inside the vacuum cleaner, potentially starting a fire. Please carefully clean the toner dust with
a dry, lint-free cloth and dispose of it according to local regulations.
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xii
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WARNING
- When you move the machine, grasp the side hand holds thatare under the scanner. DO NOT
carry the machine by holdingit at the bottom.
- Use caution when installing or modifying telephone lines.
Never touch telephone wires or
jack. Never install telephone wiring during a lightning storm. Never install a telephone wall
jack in a wet location.
- This product must be installed near an AC power outlet that is easily accessible.
In case of
an emergency, you must disconnect the power cord from the AC power outlet to shut off the
power completely.
- To reduce the risk of shock or fire, use only a No. 26 AWG or larger telecommunication line
cord.
CAUTION
Lightning and power surges can damage this product! We recommend that you use a quality
surge protection device on the AC power line and on the telephone line, or unplug the cords
during a lightning storm.
WARNING
IMPORTANT SAFETY INSTRUCTIONS
When using your telephone equipment, basic safety precautions should always be followed to
reduce the risk of fire, electric shock and injury to people, including the following:
1. Do not use this product near water, for example, near a bath tub, wash bowl, kitchen sink or
washing machine, in a wet basement or near a swimming pool.
2. Avoid using this product during an electrical storm. There may be a remote risk of electric
shock from lightning.
3. Do not use this product to report a gas leak in the vicinity of the leak.
4. Use only the power cord provided with the MACHINE.
SAVE THESE INSTRUCTIONS
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xiii
Page 16
CHOOSING A LOCATION
Place your machine on a flat, stable surface that is free of vibration and shocks, such as a desk.
Put the machine near a telephone wall jack and a standard, grounded AC power outlet.
Choose a location where the temperature remains between 50°F and 90.5°F (10°C and 32.5°C).
CAUTION
- Avoid placing your machine in a high-traffic area.
- Do not place the machine near heaters, air conditioners, water, chemicals, or refrigerators.
- Do not expose the machine to direct sunlight, excessive heat, moisture, or dust.
- Do not connect your
timers.
- Disruption of power can wipe out information in the
- Do not connect your machine to an AC power outlet on the same circuit as large appliances or
other equipment that might disrupt the power supply.
- Avoid interference sources, such as speakers or the base units of cordless phones.
machine to an AC power outlet controlled by wall switches or automatic
machine’s memory.
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Page 17
CHAPTER
PARTS NAMES & FUNCTIONS
1
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Page 18
CHAPTER 1 PARTS NAMES & FUNCTIONS
This chapter contains external views and names of components and describes their functions.
Information about the keys on the control panel is included to help you check operation or make
adjustments.
Face-down Output Tray
Support Flap with Extension
(Support Flap)
Front Cover
ADF Document Output Support Flap
Document Cover
Paper Tray
Rear view
Power Switch
Fig. 1-1
AC Power Connector
Back Cover
10/100 Baser TX Port
Parallel Interface Connector
USB Interface Connector
Fig. 1-2
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1.2 CONTROL PANEL
MFC-8460N, MFC-8860DN and MFC-8870DW have similar control keys.
3 4 5 6 2 1
1. One-Touch Keys
These 20 keys give you instant access to 40
previously stored numbers.
Shift
Lets you access One-Touch numbers 21 to 40 when
held down.
2. Status LED
The LED will flash and change color depending on
the machine status.
3. LCD 7. Start Key
Displays messages to help you use your machine.
4. Menu Keys
Menu
Accesses the main menu.
8 9 10 11
Fig. 1-3
Used to enter telephone and fax numbers or to
enter text.
The [#] key temporarily switches the dialing mode
from Pulse to Tone during a telephone call.
Stops an operation or exits from a menu.
Starts sending a fax, making a copy or scanning.
5. Dial pad Keys
6. Stop/Exit Key
7
Clear/Back
Deletes entered data or lets you exit the menu.
OK
Selects a setting.
or
Scrolls backwards or forwards through menu
selections.
Changes the volume when in fax or standby mode.
or
Scrolls through the menus and options.
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8. Copy Keys
Duplex (For MFC-8860DN and MFC-8870DW)
You can choose Duplex to copy on both sides of
the paper.
Contrast/Quality
(For MFC-8860DN and MFC-8870DW)
Lets you change the quality or contrast for the next
copy.
Contrast (For MFC-8460N)
Lets you change the contrast for the next copy.
Quality (For MFC-8460N)
Lets you change the quality for the next copy.
Enlarge/Reduce
Reduces or enlarges copies.
Tray Select
Lets you change which tray will be used for the
next copy.
Sort
Sorts multiple copies using the ADF.
N in 1
You can choose N in 1 to copy 2 or 4 pages onto
one page.
Hook
10. Fax and Telephone Keys
Press before dialing if you want to make sure a fax
machine answers, and then press [Start] key.
Also, press this key after you pick up the handset
of an external telephone during the F/T ring (fast
double-rings).
Resolution
Sets the resolution when sending a fax.
Search/Speed Dial
Lets you look up numbers stored in the dialing
memory and LDAP server* (* MFC-8860DN and
MFC-8870DW).
You can search the stored number by
alphabetically.
It also lets you look up the stored number in SpeedDial numbers by pressing [Shift] key and [Speed-Dial] key simultaneously and then the three digit
number.
Redial/Pause
Redials the last number called. It also inserts a
pause when programming quick dial numbers.
9. Mode Keys
Fax
Puts the machine in Fax mode.
Scan
Puts the machine in Scan mode.
(For details about scanning. See Software User’s
Guide on the CD-ROM.)
Copy
Puts the machine in Copy mode.
Secure
11. Print Keys
Prints data saved in memory when you enter your
four-digit password.
Job Cancel
Cancels a print job and clears the machine memory.
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DCP-8060 and DCP-8065DN have similar control keys.
2 3 4 5 1
9
1. Status LED
The LED will flash and change color depending on
the machine status.
2. LCD
Displays messages to help you use your machine.
3. Menu Keys
Menu
Accesses the main menu.
Clear/Back
Deletes entered data or lets you exit the menu.
OK
Selects a setting.
or
Scrolls backwards or forwards through menu
selections.
Changes the volume when in standby mode.
or
Scrolls through the menus and options.
4. Dial pad
6
Fig. 1-4
Duplex (For DCP-8065DN)
7 8
7. Copy Keys
You can choose Duplex to copy on both sides of
the paper.
Contrast/Quality (For DCP-8065DN)
Lets you change the quality or contrast for the next
copy.
Contrast (For DCP-8060)
Lets you change the contrast for the next copy.
Quality (For DCP-8060)
Lets you change the quality for the next copy.
Enlarge/Reduce
Reduces or enlarges copies.
Tray Select
Lets you change which tray will be used for the
next copy.
Sort
Sorts multiple copies using the ADF.
N in 1
You can choose N in 1 to copy 2 or 4 pages onto
one page.
8. Scan Key
Used to enter text.
5. Stop/Exit Key
Stops an operation or exits from a menu.
6. Start Key
Starts making a copy or scanning.
Puts the machine in Scan mode.
(For details about scanning. See Software User’s
Scan
Guide on the CD-ROM.)
Secure
9. Print Keys
Prints data saved in memory when you enter your
four-digit password.
Job Cancel
Cancels a print job and clears the machine memory.
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< Status LED indications >
The Status LED (Light Emitting Diode) will flash and change color depending on the machine status.
Fig. 1-5
The LED indications shown in the table below are used in the illustrations in this chapter.
LED LED Status
LED is off.
Green
Yellow
Red
LED is on.
LED is blinking.
Green
Yellow
Red
LED Machine Status Description
Sleep Mode The power switch is off or the machine is in Sleep
mode.
Warming Up The machine is warming up for printing.
Green
Ready The machine is ready to print.
Green
Receiving Data The machine is either receiving data from the
Yellow
computer, processing data in memory or printing
data.
Data Remaining in Memory Print data remains in the machine memory.
Yellow
Service error Follow the steps below.
1. Turn off the power switch.
2. Wait a few seconds, and then turn it back on and
Red
try to print again.
If you cannot clear the error and see the same
service call indication after turning the machine
back on, please call Brother Customer Service.
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LED Machine Status Description
Cover open The front cover or the back cover is open.
Close the cover.
Toner Life End Replace the toner cartridge with a new one.
Red
Paper error Put paper in the tray or clear the paper jam.
Check the LCD message.
Scan lock Check that the scanner lock lever is released.
Others Check the LCD message.
Out of memory Memory is full.
NOTE: When the power switch is off or the machine is in Sleep mode, the LED is off.
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1.3 COMPONENTS
N
The equipment consists of the following major components:
ADF Unit
Scanner Unit
CU PCB
Joint Cover ASSY
Driver PCB
Outer Chute ASSY
Panel Unit
Speaker ASSY
Laser Unit
Back Cover
Fuser Unit
Main PCB
Access Cover
Side Cover L
Side Cover R
Frame Unit
Process Cover ASSY
Front Cover
PS PCB
High-voltage PS PCB
Paper Tray
Fig. 1-6
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CHAPTER
SPECIFICATIONS
2
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CHAPTER 2 SPECIFICATIONS
This chapter lists the specifications of each model, which enables you to make a comparison of
different models.
CONTENTS
2.1 GENERAL ........................................................................................................................2-1
2.1.1 General Specifications ......................................................................................... 2-1
2.1.2 Paper Specifications............................................................................................. 2-2
2.1.2.1 Paper handling ...............................................................................................2-2
2.1.2.2 Media specifications ....................................................................................... 2-2
2.1.3 Printable Area ................................................................................................................ 2-5
Automatic Document Feeder (ADF) Up to 50 sheets (Staggered)
Paper Tray 250 Sheets (20 lb (80 g/m 2 ))
Printer Type Laser
Print Method Electrophotography by semiconductor laser beam
Liquid Crystal Display (LCD) 22 characters x 5 lines
Power Source 120V AC 50/60Hz (U.S.A./Canada)
Power Consumption Sleep: 17W (Average) (For the models with the NCU)
Dimensions (W x D x H) 531 mm x 450 mm x 475 mm (20.9” x 17.7” x 18.7”)
scanning
220 to 240V AC 50/60Hz (Europe/Asia/Oceania)
: 15W (Average) (For the models with out NCU)
Standby: 85W (Average)
Peak: 1092W (U.S.A./Canada)
1104W (Europe/Asia/Oceania)
(with out carton)
Weight Without Drum/Toner Unit:
MFC-8460N: 16.5 kg (36.4 lb)
MFC-8860DN/8870DW: 16.7 kg (36.81 lb)
Noise Operating: 55 dB A or less (when ADF scanning)
Standby: 30 dB A or less
Temperature Operating: 10 to 32.5°C (50°F to 90.5°F)
Storage: 0 to 40°C (32°F to 104°F)
Humidity Operating: 20 to 80% (without condensation)
Storage: 10 to 90% (without condensation)
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2.1.2 Paper Specifications
2.1.2.1 Paper handling
Paper Input* All models
Multi-purpose tray 50 sheets
Paper tray (Standard) 250 sheets
Lower tray (Option) 250 sheets
* Calculated with 80 g/m2 (21 lb) paper.
Paper Input* All models
Face-down 150 sheets
* Calculated with 80 g/m2 (21 lb) paper.
Duplex MFC-8460N/DCP8060
Manual Duplex Yes
Automatic Duplex N/A Yes
2.1.2.2 Media specifications
(1) Media types
The machine loads paper from the installed paper tray or the multi-purpose tray. The feedable
media type and size are different depending on the paper tray installed. The names for the
paper trays in the printer driver and this guides are as follows;
Paper tray Tray 1
Multi-purpose tray MP Tray
Optional lower tray unit Tray 2
Duplex tray for automatic duplex printing
(for MFC-8860DN/8870DW, DCP-8065DN)
The table in the next page shows the feedable media of each paper tray described above.
* This machine can use recycled paper that meets the DIN 19309 specification.
(5) Moisture content
Moisture content: 4% to 6% by weight
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
machines.
- 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.
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2.1.3 Printable Area
2.1.3.1 PCL5e/EPSON/IBM emulation
When using PCL emulation, the edges of the paper that cannot be printed on are shown below.
Portrait
G
E
G
G
C
A
F
E
B
D
G
F
BPhysical page length
D
F
NOTE:
- “Logical page” shows the printable area for a PCL driver.
Physical page
Printable area
Logical page
Maximum logical page length
Distance from edge of physical page to
edge of logical page
- “Printable area” shows mechanical printable area of the machine.
- Therefore, the machine can only print within the shaded area when you use a PCL driver.
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The table below shows the printable areas when printing on Portrait for each paper size.
SizeABCDEFG
Letter
Legal
Folio
Executive
A4
A5
A6
B5 (JIS)
B5 (ISO)
B6 (ISO)
COM10
MONARCH
C5
DL
DLL
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)
220.0 mm
8.66”
(2,598 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)
110.0 mm
4.33”
(1,299 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)
207.4 mm
8.17”
(2,450 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)
110.0 mm
4.33”
(1,299 dots)
6.35 mm
0.25”
(75 dots)
6.35 mm
0.25”
(75 dots)
6.35 mm
0.25”
(75 dots)
6.35 mm
0.25”
(75 dots)
6.01 mm
0.24”
(71 dots)
6.01 mm
0.24”
(71 dots)
6.01 mm
0.24”
(71 dots)
6.01 mm
0.24”
(71 dots)
6.01 mm
0.24”
(71 dots)
6.01 mm
0.24”
(71 dots)
6.35 mm
0.25”
(75 dots)
6.35 mm
0.25”
(75 dots)
6.01 mm
0.24”
(71 dots)
6.01 mm
0.24”
(71 dots)
6.27 mm
0.25”
(74 dots)
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
0 mm
NOTE:
- The paper sizes indicated here should confirm to the nominal dimensions specified by JIS
except B5 (ISO), B6 (ISO).
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)
6.27 mm
0.25”
(74 dots)
- The dot size is based on 300 dpi resolution.
2-6 Confidential
Page 34
Landscape
G
E
G
G
C
A
F
E
D
B
G
F
NOTE:
- “Logical page” shows the printable area for a PCL driver.
Physical page
Printable area
Logical page
B Physical page length
D Maximum logical page length
F Distance from edge of physical
page to edge of logical page
- “Printable area” shows mechanical printable area of the machine.
- Therefore, the machine can only print within the shaded area when you use a PCL driver.
2-7 Confidential
Page 35
The table below shows the printable areas when printing on Landscape for each paper size.
SizeABCDEFG
Letter
Legal
Folio
Executive
A4
A5
A6
B5 (JIS)
B5 (ISO)
B6 (ISO)
COM10
MONARCH
C5
DL
DLL
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)
110.0 mm
4.33”
(1,299 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)
162.0 mm
6.38”
(1,913 dots)
110.0 mm
4.33”
(1,299 dots)
220.0 mm
8.66”
(2,598 dots)
269.3 mm
10.6”
(3,180 dots)
345.5 mm
13.6”
(4,080 dots)
320.0 mm
12.6”
(3,780 dots)
256.6 mm
10.1”
(3,030 dots)
287.0 mm
11.2”
(3,389 dots)
200.0 mm
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)
97.5 mm
3.84”
(1,151 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)
162.0 mm
6.38”
(1,913 dots)
110.0 mm
4.33”
(1,299 dots)
220.0 mm
8.66”
(2,598 dots)
5.0 mm
0.2”
(60 dots)
5.0 mm
0.2”
(60 dots)
5.0 mm
0.2”
(60 dots)
5.0 mm
0.2”
(60 dots)
4.8 mm
0.19”
(59 dots)
4.8 mm
0.19”
(59 dots)
4.8 mm
0.19”
(59 dots)
4.8 mm
0.19”
(59 dots)
4.8 mm
0.19”
(59 dots)
4.8 mm
0.19”
(59 dots)
5.0 mm
0.2”
(60 dots)
5.0 mm
0.2”
(60 dots)
4.8 mm
0.19”
(59 dots)
4.8 mm
0.19”
(59 dots)
6.27 mm
0.25”
(74 dots)
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
0 mm
NOTE:
- The paper sizes indicated here should confirm to the nominal dimensions specified by JIS
except B5 (ISO), B6 (ISO).
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)
6.27 mm
0.25”
(74 dots)
- The dot size is based on 300 dpi resolution.
2.1.3.2 PCLXL, PS (BR-Script 3)
You can not print within 4.2 mm (50dots in 300 dpi mode) on all four sides of the paper.
2-8 Confidential
Page 36
2.1.4 Print Speeds with Various Settings
Print speed is up to 28 ppm for A4 size and 30 ppm for Letter size 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
Transparency 28/30 ppm
Thin Paper 28/30 ppm
Plain Paper 28/30 ppm
Recycled Paper 28/30 ppm
Thick Paper, Envelopes, Env.Thin 14 ppm
Thicker/Bond Paper, Env.Thick 3 ppm
< Smaller size than A4 or Letter
Media type setting All models
Transparency 28/30 ppm
Thin Paper 28/30 ppm
Plain Paper 90 sec 28/30 ppm Æ 14 ppm
Recycled Paper 90 sec 28/30 ppm Æ 14 ppm
Env.Thin 14 ppm
Thick Paper, Envelopes 14 ppm
Thicker/Bond Paper, Env.Thick 3 ppm
NOTE:
- The print speed may vary according to conditions, such as paper size and paper tray.
- When a smaller size paper than A4 or Letter is printed, the temperature on both edges of the
fuser 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.
- The actual print speed varies depending on the paper size.
2-9 Confidential
Page 37
2.1.5 Toner Cartridge Weight Information
<Toner Cartridge Weight (approximate weight)>
TN580
(U.S.A./Canada)
Brand new Toner Cartridge Weight
Toner Weight at Brand New Toner Cartridge
Toner Cartridge Weight at Toner Near Empty
Remain Toner Weight at Toner Near Empty
Toner Cartridge Weight at Toner Life End
Remain Toner Weight at Toner Life End
TN550
(U.S.A./Canada)
TN-3170
(Europe)
727g
190g
617g (± 13g)
77g
605g (± 10g)
68g
TN-3130
(Europe)
TN-3185
(Asia/Oceania)
TN-3145
(Asia/Oceania)
Brand new Toner Cartridge Weight 663g
Toner Weight at Brand New Toner Cartridge 126g
Toner Cartridge Weight at Toner Near Empty 617g (± 13g)
Remain Toner Weight at Toner Near Empty 77g
Toner Cartridge Weight at Toner Life End 602g (± 10g)
Remain Toner Weight at Toner Life End 65g
NOTE:
- Without yellow protector, DR cover.
- Toner cartridge weight may vary within 2 to 3g depending on the cartridge weight.
- You can print about 630 pages
with 10g toner.
(A4 size, 5% coverage, continuous printing)
- The figure has varied quite a bit, for example from 590 pages to 720 pages, on a comparison of
printing test results.
2-10 Confidential
Page 38
2.2 SPECIFICATIONS LIST
p
y
y
,
,
(
MFC-8460N
(1/5)
Model Name
GENERAL
Print Engine
CPU Speed
Back up Clock
Operating Environment
On/Off Switch
Demo Print
Demo Model
Starter Toner
Simultaneous Operation
Supported OS Version
Standard/Option
Model Name
Share Printer
Share Scanner
Share PC FAX
Internet FAX (ITU T.37 simple mode)
Scan to FTP
ITU SUB Addressing
Support OS version
Network connection
Wireless LAN capability
Wireless Network Security
Secure Easy Setup
Wi-Fi Certified
Support ProtocolsIPv4
Network Management
CCESORY
Standard Toner (3,500 pages A4/LTR pages*4)
High Capacity Toner (7,000 pages A4/LTR pages*4)
Drum Unit (25,000 pages: 1 page/job) [TBD]
SERVIC
Machine life (Print Pages)
Machine life (Scans)
Machine life (ADF)
Machine life (Years)
MTBF (Hours)
MTTR (Hours)
Standard/Option
Model Name
Share Printer
Share Scanner
Share PC FAX
Internet FAX (ITU T.37 simple mode)
Scan to FTP
ITU SUB Addressing
Support OS version
Network connection
Wireless LAN capability
Wireless Network Security
Secure Easy Setup
Wi-Fi Certified
Support ProtocolsIPv4
Network Management
CCESORY
Standard Toner (3,500 pages A4/LTR pages*4)
High Capacity Toner (7,000 pages A4/LTR pages*4)
Drum Unit (25,000 pages: 1 page/job) [TBD]
SERVIC
Machine life (Print Pages)
Machine life (Scans)
Machine life (ADF)
Machine life (Years)
MTBF (Hours)
MTTR (Hours)
Standard/Option
Model Name
Share Printer
Share Scanner
Share PC FAX
Internet FAX (ITU T.37 simple mode)
Scan to FTP
ITU SUB Addressing
Support OS version
Network connection
Wireless LAN capability
Wireless Network Security
Secure Easy Setup
Wi-Fi Certified
Support ProtocolsIPv4
Network Management
CCESORY
Standard Toner (3,500 pages A4/LTR pages*4)
High Capacity Toner (7,000 pages A4/LTR pages*4)
Drum Unit (25,000 pages: 1 page/job) [TBD]
SERVIC
Machine life (Print Pages)
Machine life (Scans)
Machine life (ADF)
Machine life (Years)
MTBF (Hours)
MTTR (Hours)
Standard/Option
Model Name
Share Printer
Share Scanner
Share PC FAX
Internet FAX (ITU T.37 simple mode)
Scan to FTP
ITU SUB Addressing
Support OS version
Network connection
Wireless LAN capability
Wireless Network Security
Secure Easy Setup
Wi-Fi Certified
Support ProtocolsIPv4
Network Management
For Windows
For MAC
IPv6
(Turned off as
default)
US/CanadaEurope
AL-DCP Base
DCP-8060
N/A
N/A
N/A
N/A
N/A
N/A
Yes (49 Truetype Fonts)
Yes
N/A
N/A
N/A
Yes (Mac OS9.1-9.2, Mac OS X 10.2.4 or greater)
Yes
Yes
N/A
N/A
N/A
N/A
N/A
Option
NC2100p (print only)
Yes
N/A
N/A
N/A
N/A
N/A
Win/98(SE)/Me, WinNT4.0/2K/XP
MacOS 9.1 - 9.2/ OSX 10.2.4 or greater
Optional 10/100BASE-TX
N/A
N/A
N/A
N/A
N/A
N/A
N/A
(5/5)
sia/Pacific
CCESORY
Standard Toner (3,500 pages A4/LTR pages*4)
High Capacity Toner (7,000 pages A4/LTR pages*4)
Drum Unit (25,000 pages: 1 page/job) [TBD]
SERVIC
Machine life (Print Pages)
Machine life (Scans)
Machine life (ADF)
Machine life (Years)
MTBF (Hours)
MTTR (Hours)
TN-550TN-3130TN-3145
TN-580TN-3170TN-3185
DR-520DR-3100DR3115
200,000
50,000
50,000
5
4,000
0.5
2-30 Confidential
Page 58
DCP-8065DN
p
y
y
(
)
,
,
(
Model Name
GENERAL
Print Engine
CPU Speed
Back up Clock
Operating Environment
On/Off Switch
Demo Print
Demo Model
Starter Toner
Simultaneous Operation
Supported OS Version
Standard/Option
Model Name
Share Printer
Share Scanner
Share PC FAX
Internet FAX (ITU T.37 simple mode)
Scan to FTP
ITU SUB Addressing
Support OS version
Network connection
Wireless LAN capability
Wireless Network Security
Secure Easy Setup
Wi-Fi Certified
Support ProtocolsIPv4
Network Management
CCESORY
Standard Toner (3,500 pages A4/LTR pages*4)
High Capacity Toner (7,000 pages A4/LTR pages*4)
Drum Unit (25,000 pages: 1 page/job) [TBD]
SERVIC
Machine life (Print Pages)
Machine life (Scans)
Machine life (ADF)
Machine life (Years)
MTBF (Hours)
MTTR (Hours)
For Windows
For MAC
IPv6
(Turned off as
default)
(5/5)
US/CanadaEurope
Yes (download from Brother Web Site)
Yes (Mac OS9.1-9.2, Mac OS X 10.2.4 or greater)
Win/98(SE)/Me, WinNT4.0/2K/XP
MacOS 9.1 - 9.2/ OSX 10.2.4 or greater
Ethernet 10/100BASE-TX Auto Negotiation
ARP,RARP, BOOTP, DHCP, APIPA (Auto IP), ICMP, W INS/NetBIOS,
This chapter gives an overview of the scanning and printing mechanisms as well as the sensors,
actuators, and control electronics. It aids in understanding the basic principles of operation as
well as locating defects for troubleshooting.
Charging, exposing,
developing,
transferring, and
heat-fixing processes
- Electrical charger
- Laser unit
(including the polygon
motor)
- Laser-sensitive drum
- Developer roller
- Transfer roller
- Heater roller
- Main motor
WLAN
(For the model with the
wireless LAN only)
WLAN
PCB
Printer
data
Paper
feeding
mechanism
LAN
(For the models with the LAN only)
LAN
interface
Low- and
high-voltage
power
supplies
AC
*Provided on models supporting facsimile function.
Fig. 3-1
Confidential
3-1
Page 66
3.2 MECHANICAL COMPONENTS
Fuser unit
Back cover
Outer chute ASSY
Halogen heater
Heat roller
Pressure roller
Exposure drum
Duplex unit
Transfer roller
Paper tray
Paper tray (LT unit)
Eject roller ASSY
Laser unit
Developer roller
Drum unit
Pinch roller
Separation roller MP
Feed roller
Regist roller
Regist actuator front
Feed roller TR
Pressure roller
Regist actuator rear
Separation roller
Feed roller
Feed roller TR
Pressure roller
Separation roller
Feed roller
LT unit
Fig. 3-2
Confidential
3-2
Page 67
3.2.1 Scanner Mechanism
y
t
t
r
t
t
r
<Duplex scanning mechanism>
This mechanism consists of the document cover, the scanner unit (scanner cover), and the
automatic document feeder (ADF).
The scanner unit consists of a scanner top cover, CCD unit and scanner base.
ADF
Top cove
Document cove
ADF & documen
cover ASSY
White-level reference film
CCD module
Guide shaf
Confidential
Fig. 3-3
3-3
Bel
Pulle
ASSY
Scanner base
Scanner uni
(Scanner cover)
Page 68
The automatic document feeder (ADF) consists of the pick-up roller, separation roller, paper feed
r
r
r
r
r
r
t
t
n
t
t
A
r
r
r
rollers 1/2/3/4, eject roller, ADF motor, switch back sensor, document rear sensor and document
front sensors 1/2.
For further details on the sensors, see Section 3.2.6.
Document rea
sensor actuator
Paper feed rolle
Document rea
Paper feed rolle
3
sensor
Switch back senso
2
Switch back
sensor actuator
Flap C
Flap B
Paper feed rolle
Fig. 3-4
SB rolle
Paper feed rolle
ASSY
4
Flap
1
Separation rolle
Document front sensor 2
Pick-up roller
Document fro
sensor actuator 2
Document fron
sensor actuator 1
Document fron
sensor 1
Ejec
roller
The duplex scanning mechanism allows you to use the following two types of scanning, “ADF
scanning” and “document glass scanning”. These two scanning methods are switched depending
on whether the document front sensor 1 detects the document or not when starting scanning.
Confidential
3-4
Page 69
Document glass scanning (The CCD unit moves under the immovable document to scan.)
y
t
t
t
Open the document cover, place a sheet of the document (or opened book) onto the document glass,
and close the document cover. Then, the machine starts scanning, and the CCD drive mechanism
is started.
The CCD motor is rotated so that its action is transferred to the CCD drive belt through the gear
train.
The CCD unit is supported by the CCD rail and assembled on the CCD drive belt. When the CCD
motor is rotated clockwise, the CCD unit on the CCD drive belt scans the document while sliding
to the right hand side.
Drive plate ASSY ALFB
(Scanner motor FB)
Guide shaf
ADF uni
CCD module
Pulle
ASSY
FFC cable
Scanner uni
Fig. 3-5
Confidential
3-5
Page 70
ADF simplex scanning (The document moves over the immovable CCD unit.)
r
r
r
(1) Set the document face up into the document chute. When the machine starts simplex scanning,
the ADF motor is rotated clockwise, the pick-up roller draws the document, and the separation
roller and separation pad send a sheet of the document to the ADF one by one from the top
page of the stacked documents.
(2) The document is passed through the paper feed rollers 1, 2 and 3, and is passed over the CCD
unit so that the document is scanned. Then, the document is ejected to the document cover by
the eject roller.
Paper feed roller 2
Paper feed roller 3
ADF moto
CCD module
Paper feed roller 1
Separation rolle
Eject rolle
Separationrubber
Fig. 3-6
Paper feed chute ASSY
Document cover LGL ALFB
Confidential
3-6
Page 71
ADF duplex scanning (The document moves over the immovable CCD unit.)
r
n
r
(1) Set the document face up into the document chute. When the machine starts duplex scanning,
the ADF motor is rotated clockwise, the pick-up roller draws the document, and the separation
roller and separation pad send a sheet of the document to the ADF one by one from the top
page of the stacked documents.
(2) The document is passed through the paper feed rollers 1, 2 and 3, and is passed over the CCD
unit so that the document is scanned. Then, the document is sent for the specified distance by
the switch back roller ASSY, and the switch back roller is turned counter so that the document
is drawn again.
Paper feed roller 2
Paper feed roller 3
ADF moto
SB roller ASSY
Separation roller
Paper feed chute ASSY
Separatio
CCD module
Fig. 3-7
rubber
(3) The drawn document is attached on the flap B and sent to the paper feed rollers 2 and 3. At
this time, the opposite side of the document is faced-up so that the backside of the document is
scanned. The document is sent to the switch back roller ASSY again.
SB roller ASSY
feed roller 3
Pape
Paper feed roller 4
Flap B
Paper feed roller 2
CCD module
Fig. 3-8
Confidential
3-7
Page 72
(4) The switch back roller ASSY is turned counter again, and the document is drawn again. The
r
document is passed through the paper feed rollers 1, 2 and 3, and ejected to the document
cover by the eject roller.
Paper feed roller 2
SB roller ASSY
Paper feed roller 3
Fig. 3-9
Eject rolle
Scanning by the CCD unit
The CCD unit includes the charge coupled device (CCD) sensor. The cold cathode fluorescent
lamp lights the document, and the reflection from the scanned image data is transferred to the lens
by the mirror. The lens reduces the scanned data so that the image is generated on the CCD.
Function of the machine cover open sensor
The machine cover open sensor detects whether the machine cover is opened or not. Even if the
document is set into the ADF, the machine starts scanning the document glass ignoring the ADF.
Function of the scanner lock lever
The scanner lock lever fixes the CCD unit in position to prevent the CCD unit from moving and
damaging during transportation.
Function of the paper feed solenoid
The paper feed solenoid releases the pick-up roller and separation roller from the drive gear while
duplex scanning and engages them with the drive gear when the document is drawn in order to
prevent that the next document is drawn into the ADF while duplex printing.
Function of the switch back solenoid
The switch back solenoid switches the planet gear of the switch back roller.
Confidential
3-8
Page 73
3.2.2 Overview of Gears
MP solenoid
T1 solenoid
LT
LT solenoid
Register solenoid
Eject solenoid
DX
Main motor
(Drive sub ASSY)
Fig. 3-10
Confidential
3-9
Page 74
3.2.3 Paper Transfer
3.2.3.1 Paper supply
The feed roller picks up a few sheets or one sheet of paper from the paper tray every time it is
rotated and feeds it to the separation roller.
Pinch roller
Regist roller
PE actuator
Feed roller TR
Pressure roller
Separation roller
Feed roller
Paper
Plate
Fig. 3-11
The main motor drive is transmitted to the gears, and the gears are engaged. Then, the paper is
gripped between the separation roller and separation pad and separated into individual sheets.
The paper drawn out of the paper tray pushes against the regist front actuator, and the paper top
position or absence of paper is detected by the actuator movement. The tail edge actuator detects
the end of the paper fed.
When a paper jam occurs, the nips between the pressure roller and feed roller TR and between the
pinch roller and regist roller are released, which allows you to remove the jammed recording paper
easily.
Confidential
3-10
Page 75
The plate ASSY in the paper tray is pushed up with the motor drive and not with the spring in
order to maintain the constant paper feeding performance regardless the number of sheet remained
in the tray.
When the paper tray (Tray1 cassette) is installed into the machine, the lift gear 46 is rotated, and
the motor drive is transmitted to the plate ASSY so that it is pushed up.
Roller holder ASSY
P/P clutch hook A2
Lift arm
Plate ASSY
Plate up plate
P/P clutch hook A1
P/P gear 29 clutch cam
Lift gear 46
Fig. 3-12
P/P clutch hook B
P/P differential
P/P gear 22/B23 tray drive
Gear 15
Gear 21-16
When the roller holder ASSY is pushed up, the hook is released by the lift arm, and the rotation of
the clutch gear is stopped. Then, the pressure plate is stopped to push up.
Stop
Fig. 3-13
Confidential
3-11
Page 76
3.2.3.2 Paper registration
After the paper top position is detected by the regist actuator front, the paper, separated into
individual sheets by the separation roller, is fed further for a specified time, and the paper top
position reaches the regist roller so that the paper skew is adjusted. Then, the register solenoid is
turned off, the paper feed roller starts turning, and the paper is fed to the transfer roller in the
drum/toner ASSY.
Exposure drum
Transfer roller
Drum/toner ASSY
Regist actuator rear
The regist actuator rear in the path from the regist roller to the transfer roller controls the first print
position on the paper. The machine starts transferring an image when a definite time passes after
the paper is passed through the regist actuator rear.
3.2.3.3 Drum unit
<Exposure drum>
Generates the latent electrostatic image and develops the image on the drum surface.
<Primary charger >
Forms a uniform charge on the drum surface.
(1) Corona wire
Generates the ion charge on the drum.
(2) Grid
Spreads the ion charge evenly over the drum surface.
<Transfer roller >
Transfers the toner image to the paper from the drum surface.
Regist roller
Fig. 3-14
Regist actuator front
<Cleaner >
Transfers the toner image to the paper from the drum surface.
Confidential
3-12
Page 77
3.2.3.4 Developing
Developing causes the toner to be attracted to the electrostatic image on the drum so as to
transform it into a visible image.
The developer consists of a non-magnetic toner. The developer roller is made of conductive
rubber and the supply roller (which is also made of conductive sponge) rotate against each other.
The toner is charged and carried from the supply roller to the developer roller. The toner adheres
to the developer roller and is conveyed to the exposure drum at an even thickness controlled by the
blade. The toner is nipped between the developer roller and the drum and developed onto the
latent image on the drum. The electrostatic field between the drum and the developer roller, which
is DC-biased from the high-voltage power supply, creates the electrostatic potential to attract toner
particles from the developer roller to the latent image area on the drum surface.
Corona wire
Exposure drum
Developer roller
Supply roller
Blade
Transfer roller
Fig. 3-15
Confidential
3-13
Page 78
3.2.3.5 Fixing stage
The image transferred to the paper by static electricity is fixed by heat and pressure when passing
through the heat roller and the pressure roller in the fuser unit. The thermistor keeps the surface
temperature of the heat roller constant by detecting the surface temperature of the heat roller and
turning on or off the halogen heater lamp.
Pressure roller
Fuser unit
Heat roller
Halogen heater
Fig. 3-16
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3.2.3.6 Paper eject
After the printing image on the exposure drum is transferred onto the paper, the paper is fed to the
fuser unit to fix unfixed toner onto the paper by the heat roller and the pressure roller in the fuser
unit.
Afterwards, the paper is ejected from the fuser unit. The paper eject actuator detects whether the
paper is ejected correctly or not.
After the paper exits from the heat roller, the paper is turned by the back cover and ejected face
down into the top output tray through the eject roller ASSY.
Eject roller ASSY
Back cover
Heat roller
Paper eject actuator
Pressure roller
Fig. 3-17
When a paper jam occurs, the roller in the eject roller ASSY is released to remove the jammed
recording paper easily.
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3.2.3.7 Duplex printing (For the models with the DX only)
After the paper exits from the eject roller ASSY with the front of sheet printed, the eject roller
ASSY rotates conversely and feeds the paper to the duplex tray, where the paper skew is adjusted.
Afterwards, the paper is ejected from the duplex tray to the path through the regist roller and the
transfer roller to the transfer block in the drum unit again for process of printing on the back of
sheet.
Eject roller ASSY
Heat roller
Back cover
Outer chute ASSY
Pressure roller
Duplex unit
Transfer roller
Regist actuator rear
Fig. 3-18
Exposure drum
Regist roller
Pinch roller
Regist actuator front
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3.2.3.8 Paper feeding from the MP tray
The separation roller is connected with the feed roller through the gear in the MP roller holder
ASSY. When the separation roller is driven, therefore, the feed roller is also driven. At this time,
the recording paper is drawn out of the MP tray by rotation of the feed roller contacted with the
recording paper. The drawn recording paper is separated into individual sheets by the separation
roller.
Separation pad ASSY MP
Separation roller MP
Feed roller
MP tray cover ASSY
3.2.3.9 LT tray
The motor drive is transmitted to the gear to rotate the feed roller, then the recording paper is
drawn out of the LT tray. The drawn recording paper is separated into individual sheet by the
separation roller and fed to the machine.
Fig. 3-19
Feed roller TR
Separation roller
Separation pad
Feed roller
Paper
Fig. 3-20
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Plate
Page 82
3.2.4 Toner Cartridge
Develops the electrostatic latent image on the exposure drum with toner and forms the visible
image.
3.2.4.1 Toner life end mode
A new toner cartridge can print approximately 3,500 (standard toner) or approximately 7,000 (high
yield toner) A4 or Letter size single-sided pages at 5% coverage. In the case of low-duty printing,
“Toner Life End” is indicated by “TONER LIFE END” message appears on the LCD panel before
the toner runs out because the developer roller surface or other toner sealing is worn out due to a
rotation of the rollers. The upper limit of the drum rotation is 44,000 = 4,000 sheets x 11 rotations
(standard toner), 92,400 = 8,400 sheets x 11 rotations (high yield toner).
The following graph shows the number of printable pages in the case of A4 printing.
Standard (3.5K) toner
Page/job123456789101112
Cartridge life
Cartridge life+ON/OFF
Toner empty (5%)
Toner empty (4%)
Toner empty (3%)
Toner empty (2%)
Toner empty (1%)
Cartridge life = 11a x 4200 / ( 3.6 x (a - 1) + 11 )a : Page / job
• The number of rotation of the developer roller per page is as follows;
1. One printed page only or the first page of continuous printing = 11 rotations
2. The second page or later = 3.6 rotations
•
Number of idling rotation when the machine is turned ON = 9 rotations
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3.2.4.2 New toner detection mechanism
N
N
(1) The motor drive is transmitted to the gear (4) through a few gears.
(2) When the gear (4) is rotated, the rib A on the gear (4) pushes against a new toner actuator, and
a new toner sensor detects the actuator motion. Then, the toner sensor detects that a new toner
cartridge is installed.
(3) For the high yield toner cartridge, the rib B is provided on the gear (4) as shown in the figure
below so that a new toner actuator is pushed against twice by both ribs A and B.
(4) When the toner actuator is pushed twice, the two signals are transmitted to a new toner sensor,
and it is detected that the high yield toner cartridge is installed.
For the standard toner cartridge, the rib B is not provided, and a new toner actuator is pushed
only once by the rib A. In this case, the one signal is transmitted to a new toner sensor so that
it is detected that the standard toner cartridge is installed.
<Machine side view when a new toner cartridge is installed>
Relay front PCB ASSY
ew toner sensor
Gear (1)
ew toner actuator
Gear (2)
Gear (4)
Rib B
Rib A
Gear (3)
Fig. 3-21
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When the new toner detection switch detects that the toner cartridge is replaced with a new one,
the developing bias voltage is initialized at the same time.
The toner used for the machine has a property that print density is light first and gradually darker
in the course of usage. The developing bias controls the toner property so that the print density is
constant from first to last.
Toner propertyActual control
[Density]
[Voltage]
Print density
[Density]
[Voltage]
Print density
Bias voltage
[Used toner amount][Used toner amount]
Fig. 3-22
To always obtain a print result of a constant density, the machine counts the number of print pages
immediately after the toner cartridge is replaced and changes the bias voltage according to the
accumulated number of prints with the toner cartridge.
The bias voltage is changed with the steps described below:
(1) When the new toner sensor detects that the toner cartridge is replaced with a new (full) one,
the developing bias is set to 400V (initialized).
(2) After that, the bias voltage is stepped down according to the number of prints.
3.2.4.3 Counter reset during indication of “Toner Life End”
The counter resetting method during indication of “Toner Life End” depends on the cause of toner
life end and the condition of the inserted toner cartridge. Refer to the following table for details.
Toner Life End (Toner empty)
Bias voltage
Toner Life End
(Developer count full)
When a used toner is
inserted (Reset gear is at the
position of in use.)
Toner exchange count: +0
Page counter of each toner: Continued
Coverage of each toner: Continued
Not used.
Development bias: Reset (Default)
When a new toner is inserted
(Reset gear is at the position
of factory set.)
Toner exchange count: +1
Page counter of each toner: Reset (0)
Coverage of each toner: Reset (0)
Development bias: Reset (Default)
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3.2.5 Print Process
g
3.2.5.1 Charging
The drum is charged to approximately 900V by an ion charge which is generated by the primary
charger. The charge is generated by ionization of the corona wire, which has a DC bias from the
high-voltage power supply applied to it. The flow of the ion charge is controlled by the grid to
ensure it is distributed evenly on the drum surface. The aluminum drum sleeve in the exposure
drum is grounded.
Voltage
circuit
-
+
-
-
+
-
+
-
-
+
-
-
---
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
Aluminum drum sleeve
Or
anic photoconductor layer
Grid
HVPS
Exposure
drum
The primary charge uses a corona wire, but since the drum is positively charged, only less than
1/10 of the usual quantity of ozone is generated compared with the negatively charged drum. The
level of ozone expelled from the machine is therefore not harmful to the human body. Applicable
safety standards have been complied with.
3.2.5.2 Exposure stage
After the drum is positively charged, it is exposed to the light emitted from the laser unit.
Laser detector
Toric Lens
Laser diode
<Laser exposure unit>
1. The laser beam radiated from a laser diode inside the laser unit are concentrated into a
constant width by a slit in the CO lens cell and then reflected by a polygon mirror rotating at
high speed.
2. The laser beam reflected by the polygon mirror are refracted by the f-theta lens and radiated
from the right through to the left end of the reflection mirror as the polygon mirror rotates. At
this time, blur of the vertical direction of the laser beam by inclination of a polygon mirror is
corrected by passing a Toric lens.
Corona wire
CO Lens
Fig. 3-23
Drum
Laser beam
Paper
Laser beam
f θ lens
Polygon mirror
Motor
Fig. 3-24
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3. The laser beams reflected by the reflection mirror go straight toward the exposure drum below
it, then expose the exposure drum.
3.2.5.3 Transfer
(1) Transfer process
After the drum has been charged and exposed, and has received a developed image, the toner
formed is transferred onto the paper by applying a negative charge to the back of the paper.
The negative charge applied to the paper causes the positively charged toner to leave the drum,
and adhere to the paper. As a result, the image is visible on the paper.
Surface
potential (V)
Drum
sleeve
+900
+400
+100
1 Cycle of drum
2 1
(a)
(b)
0
3
Time
Primary charging
1
Laser beam exposure and developing
2
(a) Unexposed area
(Non image area)
(b) Exposed area
(Image area)
Transfer the image to paper
3
Fig. 3-25
(2) Cleaning process of transfer roller
If the toner is not transferred onto the paper perfectly it is possible that there may be residual
toner on the drum which will adhere to the transfer roller. The transfer roller voltage changes
to a positive voltage during non-printing rotation of the drum. Therefore the transfer roller is
cleaned by returning the positively charged toner adhering to the transfer roller onto the
exposure drum.
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3.2.6 Sensors
N
Regist front sensor Photo sensor High-voltage PS PCB
This chapter describes how to transfer data left in the machine to be sent for repair. The service
personnel should instruct end users to follow the transfer procedure given in this chapter if the
machine at the user site cannot print received data due to the printing mechanism defective.
End users can transfer received data to another machine to prevent data loss.
CONTENTS
4.1 TRANSFERRING RECEIVED FAX DATA....................................................................... 4-1
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4.1 TRANSFERRING RECEIVED FAX DATA
When the machine at the user site requires to be repaired, unplugging the power cord from the wall
socket for sending the machine for repair will lose received FAX data if unprinted and left in the
machine.
To prevent such data loss, the service personnel should instruct end users (e.g., by telephone) to
transfer data to another facsimile machine using the procedure below.
NOTE: The number of files that can be transferred at a time
carry out the following procedure more than one time.
NOTE: This functions is not applicable to the DCP-8060/8065DN.
TIP: If there are both color and monochrome data in a file to be transferred, the monochrome data
will be transferred first. If the receiver machine does not support the color function, the
sender machine cannot transfer color data, resulting in an error.
Operating Procedure
(1) Connect the machine to be repaired (that has received data in the memory) to the telephone
line.
(2) Switch the machine on.
(2) Press the [Menu], [Start], [0], [5] and [3] keys in this order to access user-accessible
functions of the maintenance mode.
The “FAX TRANSFER” appears on the LCD.
(4) To check the number of received files
The “1.NO. OF JOBS” appears on the LCD.
Press the [OK] key, and the number of received files appears, just as “NO. OF. JOBS:
10.”
(5) To transfer the activity report only
The “2.ACTIVITY” appears.
To transfer received files together with the activity report
The “3.DOCUMENTS” appears. Note that if there is no received file, the “NO
DOCUMENTS” appears.
, press the [1] key.
, press the [2] key.
is 99. To transfer 100 files or more,
, press the [3] key.
(6) To transfer the communication list for the latest communication, press the [4] key.
The “4.COM.LIST (NEW)” appears.
To transfer the communication list for last three errors
The “5.COM.LIST (ERR3)” appears.
(7) With the “2.ACTIVITY,” “3.DOCUMENTS,” “4.COM.LIST (NEW),” or “5.COM.LIST
(ERR3)” being displayed, press the [OK] key.
The “ENTER NO. &SET” appears.
(8) Enter the telephone number of the receiver machine and press the [OK] key again.
NOTE: Be sure to type the telephone number with the numerical keys. No one-touch dialing
is allowed in this procedure.
The machine displays the “ACCEPTED” for approx. two seconds and starts dialing
to transfer data.
No station ID will be attached. A cover page and end page as shown on the next
page will be automatically attached, instead.
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, press the [5] key.
Page 93
Cover page sample
End page sample
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Page 94
CHAPTER
DISASSEMBLY/REASSEMBLY AND
LUBRICATION
5
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CHAPTER 5 DISASSEMBLY/REASSEMBLY AND LUBRICATION
This chapter details procedures for disassembling and reassembling the machine together with
related notes. The disassembly order flow provided enables you to see at a glance the quickest
way to get to component(s) involved.
At the start of a disassembly job, you check the disassembly order flow that guides you through
a shortcut to the object components.
This chapter also covers screw tightening torques and lubrication points to which the specified
lubricants should be applied during reassembly jobs.
To prevent the creation of secondary problems by mishandling, observe the following
precautions during maintenance work.
(1) Before starting disassembly/reassembly jobs, unplug the power cord and telephone line
In particular, when having access to the power supply inside the machine, make sure that
the power cord is unplugged from the electrical outlet; when having access to the main
PCB or NCU PCB, make sure that both the power cord and telephone line are unplugged
from the machine.
(2) Be careful not to lose screws, washers, or other parts removed for parts replacement.
(3) When using soldering irons and other heat-generating tools, take care not to damage the
resin parts such as wires, PCBs, and covers.
(4) Static electricity charged in your body may damage electronic parts.
Before handling the PCBs, touch a metal portion of the machine to discharge static
electricity charged in your body. When transporting PCBs, be sure to wrap them in
conductive sheets such as aluminum foil.
(5) Be sure to reinsert self-tapping screws correctly, if removed.
(6) Tighten screws to the torque values listed on the next page.
(7) When connecting or disconnecting cable connectors, hold the connector bodies not the
wires. If the connector has a lock, always slide the connector lock to unlock it.
(8) Before reassembly, apply the specified lubricant to the specified points.
(Refer to Section 5.3 in this chapter.)
(9) After repairs, check not only the repaired portion but also that the connectors and other
related portions function properly before operation checks.
.
(10) After you use the machine, some internal parts are extremely HOT! To prevent injuries,
be careful not to put your fingers in the areas shown in the illustration.
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