Brother FAX 2800 - B/W Laser - Fax User manual

FACSIMILE EQUIPMENT
SERVICE MANUAL
MODEL: FAX2800/MFC4800

© Copyright Brother 2001
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.

PREFACE
This publication is a Service Manual covering the specifications, construction, theory of operation,
and maintenance of the Brother facsimile equipment. It includes information required for field
troubleshooting and repair--disassembly, reassembly, and lubrication--so that service personnel
will be able to understand equipment function, to rapidly repair the equipment and order any
necessary spare parts.
To perform appropriate maintenance so that the facsimile equipment 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 DESCRIPTION
CHAPTER 2 INSTALLATION
CHAPTER 3 THEORY OF OPERATION
CHAPTER 4 DISASSEMBLY/REASSEMBLY AND LUBRICATION
CHAPTER 5 MAINTENANCE MODE
CHAPTER 6 ERROR INDICATION AND TROUBLESHOOTING
Appendix 1. EEPROM Customizing Codes
Appendix 2. Firmware Switches (WSW)
Appendix 3. Circuit Diagrams
This manual describes the models and their versions to be destined for major countries. The specifications
and functions are subject to change depending upon each destination.

SAFETY INFORMATION
Laser Safety (110-120V Model only)
This printer is certified as a Class 1 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 housings and
external covers, the laser beam cannot escape from the machine during any phase of user
operation.
CDRH Regulations (110-120V Model only)
The Center for Device and Radiological Health (CDRH) of the US Food and Drug Administration
implemented regulations for laser products on August 2, 1976. These regulations apply to laser
products manufactured from August 1, 1976. Compliance is mandatory for products marketed in
the United States. The label shown below indicates compliance with the CDRH regulations and
must be attached to laser products marketed in the United States.
The label for Chinese products
MANUFACTURED: JUNE 2001 C
BROTHER CORP. (ASIA) LTD.
BROTHER BUJI NAN LING FACTORY
Gold Garden Industry, Nan Ling Village, Buji,
Rong Gang, Shenzhen, China.
This product complies with FDA radiation
performance standards, 21 CFR Subchapter J.

CHAPTER 1
GENERAL DESCRIPTION

CHAPTER 1 GENERAL DESCRIPTION
CONTENTS
1.1 EQUIPMENT OUTLINE ...................................................................................................1-1
1.1.1 External Appearance and Weight ........................................................................1-1
1.1.2 Components.........................................................................................................1-1
1.2 SPECIFICATIONS............................................................................................................1-2

1-1
1.1 EQUIPMENT OUTLINE
1.1.1 External Appearance and Weight
The figure below shows the equipment appearance and approximate dimensions.
Weight: Machine proper Approx. 7.5 kg
Machine (incl. drum unit & toner cartridge) Approx. 8.7 kg
In package Approx. 11 kg
1.1.2 Components
The equipment consists of the following major components:
(W)
395 mm
15.6"
(including handset)
(H)
243 mm
9.6"
(D)
359 mm
14.1"

1-2
1.2 SPECIFICATIONS FAX2800 (FAX2850)/FAX2900 (1/2)
Model Name FAX2800 (FAX2850) FAX2900
GENERAL
Print Engine Laser (YL4) Laser (YL4)
Modem Speed(bps) 14,400(Fax) 14,400(Fax)
Transmission Speed(sec.) 6(Brother#1,MMR) 6(Brother#1,MMR)
ITU-T Group G3 G3
Coding Method MH/MR/MMR MH/MR/MMR
Input/Output Width 5.8"-8.5"/3.5"-8.5" 5.8"-8.5"/3.5"-8.5"
Input/Output Length 5"-14"/5"-14" 5"-14"/5"-14"
ADF(pages) up to 20 up to 20
LCD Size 16 Characters 16 Characters x 1 Line
LCD Backlight No No
Backup Clock Yes (1 hour) Yes (1 hour)
Memory Capacity (physical) 2MB (RAM) 4MB (RAM)
Optional Memory N/A N/A
Dimensions w/ Carton (WxDxH) 519mm x 454 mm x 375 mm 519mm x 454 mm x 375 mm
Dimensions w/o Carton (WxDxH) 395mm x 359mm x 243mm 395mm x 359mm x 243mm
Weight w/ Carton 11 Kg 11 Kg
Weight w/o Carton 7.5 Kg 7.5 Kg
Color Gray 1495 Gray 1495
Operating Environment Temperature 5 - 32.5 degrees Centigrade 5 - 32.5 degrees Centigrade
Humidity 20 - 80 % 20 - 80 %
Power Source 120 VAC, 50/60Hz 120 VAC, 50/60Hz
Power Consumption (Sleep/Standby/Peak) 10W/ 70W/ 940W or less 10W/ 70W/ 940W or less
On/Off Switch No No
Starter Toner Yes (1,000 pages) Yes (1,000 pages)
Warm Up Time Approx. 12 sec Approx. 12 sec
TELEPHONE
Handset Yes Yes
One-Touch Dial 8 8
Speed Dial 100 120
Speaker Phone N/A N/A
Chain Dialing Yes Yes
Caller ID Yes Yes
Call Waiting Caller ID Yes Yes
Distinctive Ringing Yes Yes
Call Manage Yes Yes
Hold/Mute Key Yes Yes
Power Failure Dialing N/A N/A
Speaker Volume Yes (3 steps + OFF) Yes (3 steps + OFF)
Ring Volume Yes (3 steps + OFF) Yes (3 steps + OFF)
Handset Volume Yes (2 steps + OFF + Amplify) Yes (2 steps + OFF + Amplify)
PBX Feature N/A N/A
Transfer Method No No
FAX
Internet FAX N/A N/A
Easy Receive/Fax Detect Yes Yes
Fax/Tel Switch Yes Yes
Enhanced Remote Activate Yes Yes
Scan Speed (sec./page, A4:Standard) Approx. 3.5 Approx. 3.5
Memory Transmission (Brother#1 Chart) 90 Pages(MMR/Standard Resolution) 220 Pages(MMR/Standard Resolution)
(ITU-T Chart) 80 Pages(MMR/Standard Resolution) 240 Pages(MMR/Standard Resolution)
Broadcasting Yes (158 locations) Yes (178 locations)
Auto Reduction Yes Yes
Out-of-Paper Reception (Brother #1 Chart) 90 Pages(MMR/Standard Resolution) 220 Pages(MMR/Standard Resolution)
(ITU-T Chart) 80 Pages(MMR/Standard Resolution) 240 Pages(MMR/Standard Resolution)
ECM(Error Correction Mode) Yes Yes
Group Dial Yes (6) Yes (6)
Color FAX (Document Send/Receive) No / No No / No
Color FAX (Memory Send/Receive) No / No No / No
Memory Backup No Yes
LIST/REPORT
Activity Report/Journal Report Yes (up to 200) Yes (up to 200)
Transmission Verification Report Yes Yes
INTERFACE
External TAD Interface Yes Yes
Host Interface (Serial) No No
Host Interface (IEEE1284) No Yes
Host Interface (USB) No Yes
LAN Interface No No
Acceptable Media Card Slot N/A N/A
Analog Video Port N/A N/A

1-3
FAX2800 (FAX2850)/FAX2900 (2/2)
Model Name FAX2800 (FAX2850) FAX2900
PRINTER
Color/Mono - Mono
Engine Type - Laser (YL4)
Resolution(dpi) - 600x600
Speed(ppm) - up to 10
Paper Capacity(sheets) - 200
Output Paper Capacity(sheets) - 50
Standard Print Language - Windows GDI
Emulation -No
Resident Fonts - No
Fonts Disk Based - No
Paper Handling Size - LTR, LGL, A4, B5, A5, EXE
Manual Feed Slot - N/A
Other Paper Type - OHP, Envelopes, Organizer
Sheet Weight (Paper Cassette) - 64-105 g/m2 (17 - 28 lb)
(Manual Slot) - N/A
Printer Driver - Win95/98/98SE/Me/2000Professional/
-NT4.0WS
COPY
Color/Mono Mono Mono
Speed(ppm) up to 10 up to 10
Multi Copy(Stack) Yes Yes
Multi Copy(Sort) No No
Reduction/Enlargement(%) 50 to 200 in 1% increments 50 to 200 in 1% increments
Resolution(dpi) 200 x 300 200 x 300
First Copy Out Time (From Ready Mode) Approx. 13 sec. Approx. 13 sec.
SCANNER No No
Color/Mono - -
Resolution(Optical : dpi) - -
Resolution(Int. : dpi) - -
Gray Scale - -
TWAIN Compliant & Operating System - -
PCI Scanner (Parallel/Serial) - -
BUNDLED SOFTWARE (For Windows)
Printer Driver No Available download from Web
TWAIN No No
Viewer No No
Formats (Import) - -
Formats (Export) - -
Pop Up Menu No No
OCR No No
PC Fax No No
Remote Setup No No
PC Diagnostics No No
Others --
BUNDLED SOFTWARE (For iMAC)
Printer Driver No No
TWAIN No No
Viewer No No
Formats (Import) - -
Formats (Export) - -
Pop Up Menu No No
OCR No No
PC Fax No No
Remote Setup No No
PC Diagnostics No No
Others --
ACCESSORY
Life / Yield Toner Starter (N/A) 1,000 pages 1,000 pages
Supply (TN-250) 2200 pages 2200 pages
Drum (DR-250) 20,000 pages: Continuous Printing 20,000 pages: Continuous Printing
8,000 pages:1 page/job 8,000 pages:1 page/job

1-4
MFC4800/FAX3800 (1/2)
Model Name MFC4800 FAX3800
GENERAL
Print Engine Laser (YL4) Laser (YL4)
Modem Speed(bps) 14,400(Fax) 33,600(Fax)
Transmission Speed(sec.) 6(Brother#1,MMR) 2(Brother#1,JBIG)
ITU-T Group G3 Supper G3
Coding Method MH/MR/MMR MH/MR/MMR/JBIG
Input/Output Width 5.8"-8.5"/3.5"-8.5" 5.8"-8.5"/3.5"-8.5"
Input/Output Length 5"-14"/5"-14" 5"-14"/5"-14"
ADF(pages) up to 20 up to 20
LCD Size 16 Characters x 1 Line 16 Characters x 1 Line
LCD Backlight No Yes
Backup Clock Yes (1 hour) Yes (1 hour)
Memory Capacity (physical) 2MB (RAM) 8MB (RAM)
Optional Memory N/A N/A
Dimensions w/ Carton (WxDxH) 519mm x454 mm x 375 mm 519mm x 454 mm x 375 mm
Dimensions w/o Carton (WxDxH) 395mm x 359mm x 243mm 395mm x 359mm x 243mm
Weight w/ Carton 11 Kg 11 Kg
Weight w/o Carton 7.5 Kg 7.5 Kg
Color Gray 1495 Gray 1495
Operating Environment Temperature 5 - 32.5 degrees Centigrade 5 - 32.5 degrees Centigrade
Humidity 20 - 80 % 20 - 80 %
Power Source 120 VAC, 50/60Hz 120 VAC, 50/60Hz
Power Consumption (Sleep/Standby/Peak) 10W/ 70W/ 940W or less 10W/ 70W/ 940W or less
On/Off Switch No No
Starter Toner Yes (1,000 pages) Yes (1,000 pages)
Warm Up Time Approx. 12 sec Approx. 12 sec
TELEPHONE
Handset Yes Yes
One-Touch Dial No 8
Speed Dial 100 120
Speaker Phone N/A N/A
Chain Dialing Yes Yes
Caller ID Yes Yes
Call Waiting Caller ID Yes N/A
Distinctive Ringing Yes Yes
Call Manage Yes Yes
Hold/Mute Key Yes Yes
Power Failure Dialing N/A N/A
Speaker Volume Yes (3 steps + OFF) Yes (3 steps + OFF)
Ring Volume Yes (3 steps + OFF) Yes (3 steps + OFF)
Handset Volume Yes (2 steps + OFF + Amplify) Yes (2 steps + OFF + Amplify)
PBX Feature N/A N/A
Transfer Method No No
FAX
Internet FAX N/A N/A
Easy Receive/Fax Detect Yes Yes
Fax/Tel Switch Yes Yes
Enhanced Remote Activate Yes Yes
Scan Speed (sec./page, A4:Standard) Approx. 3.5 Approx. 3.5
Memory Transmission (Brother#1 Chart) 90 Pages(MMR/Standard Resolution) 600 Pages(MMR/Standard Resolution)
(ITU-T Chart) 80 Pages(MMR/Standard Resolution) 400 Pages(MMR/Standard Resolution)
Broadcasting Yes (150 locations) Yes (178 locations)
Auto Reduction Yes Yes
Out-of-Paper Reception (Brother #1 Chart) 90 Pages(MMR/Standard Resolution) 600 Pages(MMR/Standard Resolution)
(ITU-T Chart) 80 Pages(MMR/Standard Resolution) 400 Pages(MMR/Standard Resolution)
ECM(Error Correction Mode) Yes Yes
Group Dial Yes (6) Yes (6)
Color FAX (Document Send/Receive) No / No No / No
Color FAX(Memory Send/Receive) No / No No / No
Memory Backup No Yes
LIST/REPORT
Activity Report/Journal Report Yes (up to 200) Yes (up to 200)
Transmission Verification Report Yes Yes
INTERFACE
External TAD Interface Yes Yes
Host Interface (Serial) No No
Host Interface (IEEE1284) Yes Yes
Host Interface (USB) Yes Yes
LAN Interface No No
Acceptable Media Card Slot N/A N/A
Analog Video Port N/A N/A

1-5
MFC4800/FAX3800 (2/2)
Model Name MFC4800 FAX3800
PRINTER
Color/Mono Mono Mono
Engine Type Laser (YL4) Laser (YL4)
Resolution(dpi) 600x600 600x600
Speed(ppm) up to 10 up to 10
Paper Capacity(sheets) 200 200
Output Paper Capacity(sheets) 50 50
Standard Print Language Windows GDI Windows GDI
Emulation No No
Resident Fonts No No
Fonts Disk Based Yes No
Paper Handling Size LTR, LGL, A4, B5, A5, EXE LTR, LGL, A4, B5, A5, EXE
Manual Feed Slot N/A N/A
Other Paper Type OHP, Envelopes, Organizer OHP, Envelopes, Organizer
Sheet Weight (Paper Cassette) 64-105 g/m2 (17 - 28 lb) 64-105 g/m2 (17 - 28 lb)
(Manual Slot) N/A N/A
Printer Driver Win95/98/98SE/Me/2000Professional/ Win95/98/98SE/Me/2000Professional/
NT4.0WS MacOS 8.5-9.1 NT4.0WS
COPY
Color/Mono Mono Mono
Speed(ppm) up to 10 up to 10
Multi Copy(Stack) Yes Yes
Multi Copy(Sort) No No
Reduction/Enlargement(%) 50 -- 200 in 1% increments 50 -- 200 in 1% increments
Resolution(dpi) 200 x 300 200 x 300
First Copy Out Time (From Ready Mode) Approx. 13 sec. Approx. 13 sec.
SCANNER Yes No
Color/Mono Mono -
Resolution(Optical : dpi) 200x400 -
Resolution(Int. : dpi) 1,200x1,200 -
Gray Scale 256 -
TWAIN Compliant & Operating System Win95/98/98SE/Me/NT4.0/2000Professinal -
MacOS 8.6-9.1
PCI Scanner (Parallel/Serial) Parallel/USB -
BUNDLED SOFTWARE (For Windows)
Printer Driver Yes Available download from Web
TWAIN Yes No
Viewer Yes No
Formats (Import) TIFF/BMP/PCX/DCX/BTF/BTX/MAX -
Formats (Export) TIFF/BMP/MAX -
Pop Up Menu Yes No
OCR Yes No
PC Fax Yes (TX only) No
Remote Setup Yes No
PC Diagnostics No No
Others Auto E-mail Printing(Win 95/98/Me only) -
BUNDLED SOFTWARE (For iMAC)
Printer Driver Yes No
TWAIN Yes No
Viewer Yes No
Formats (Import) TIFF/BMP/PCX/DCX/BTF/BTX/MAX -
Formats (Export) TIFF/BMP/MAX -
Pop Up Menu No No
OCR Yes No
PC Fax Yes No
Remote Setup No No
PC Diagnostics No No
Others --
ACCESSORY
Life / Yield Toner Starter (N/A) 1,000 pages 1,000 pages
Supply (TN-250) 2200 pages 2200 pages
Drum (DR-250) 20,000 pages: Continuous Printing 20,000 pages: Continuous Printing
8,000 pages:1 page/job 8,000 pages:1 page/job

1-6
FAX-8070P/MFC-9070 (1/2)
Model Name FAX-8070P MFC-9070
GENERAL
Print Engine Laser (YL4) Laser (YL4)
Modem Speed(bps) 14,400(Fax) 14,400(Fax)
Transmission Speed(sec.) Approx.6 (Brother#1,MMR) Approx.6(Brother#1,MMR)
ITU-T Group G3 G3
Coding Method MH/MR/MMR MH/MR/MMR
Input/Output Width 5.8"-8.5"/3.5"-8.5" 5.8"-8.5"/3.5"-8.5"
Input/Output Length 5"-14"/5"-14" 5"-14"/5"-14"
ADF(pages) up to 20 up to 20
LCD Size 16 Characters x 1 line 16 Characters x 1 line
LCD Backlight Yes Yes
On-Screen Programming Yes Yes
Backup Clock Yes (9 hours) Yes (9 hours)
Memory Capacity(physical) 2 MB(RAM) 8 MB(RAM)
Memory Backup Yes ( Max. 4 days ) Yes ( Max. 4 days )
Optional Memory N/A N/A
Dimensions w/ Carton (WxDxH) 519mm x 454 mm x 375 mm 519mm x 454 mm x 375 mm
Dimensions w/o Carton (WxDxH) 395mm x 359mm x 243mm 395mm x 359mm x 243mm
Weight w/ Carton 11 Kg 11 Kg
Weight w/o Carton 7.5 Kg 7.5 Kg
Color Gray 1495 Gray 1495
Operating Environment Temperature 5 - 32.5 degrees Centigrade 5 - 32.5 degrees Centigrade
Humidity 20 - 80 % 20 - 80 %
Power Source 220-240 VAC, 50/60Hz 220-240 VAC, 50/60Hz
Power Consumption (Sleep/Standby/Peak) 10W/70W/940W or less 10W/70W/940W or less
On/Off Switch No No
Starter Toner No No
TELEPHONE
Handset No No
One-Touch Dial 8 locations No
Speed Dial 100 100
Speaker Phone N/A N/A
Chain Dialing Yes Yes
Caller ID N/A N/A
Call Waiting Caller ID N/A N/A
Distinctive Ringing Yes(UK, DEN only) Yes(UK, DEN only)
Hold/Mute Key N/A N/A
Power Failure Dialing N/A N/A
Speaker Volume Yes (3 steps + OFF) Yes (3 steps + OFF)
Ring Volume Yes (3 steps + OFF) Yes (3 steps + OFF)
Handset Volume N/A N/A
PBX Feature Yes Yes
Transfer Method Flash/Earth for UK/Netherlands Flash/Earth for UK/Netherlands
FAX
Internet FAX N/A N/A
Easy Receive/Fax Detect Yes Yes
Fax/Tel Switch Yes Yes
Enhanced Remote Activate Yes Yes
Quick-Scan(Memory transmission) Yes as default, Approx.3.5 sec./page (A4 standard) Yes as default, Approx.3.5 sec./page (A4 standard)
Memory Transmission (Brother#1 Chart) 90 Pages(MMR/Standard Resolution) 500 Pages(MMR/Standard Resolution)
(ITU-T Chart) 80 Pages(MMR/Standard Resolution) 400 Pages(MMR/Standard Resolution)
Broadcasting Yes (158 locations) Yes (150 locations)
Manual Broadcasting Yes(50 locations ) Yes ( 50 locations )
Auto Reduction Yes Yes
Out-of-Paper Reception (Brother #1 Chart) 90 Pages(MMR/Standard Resolution) 500 Pages(MMR/Standard Resolution)
(ITU-T Chart) 80 Pages(MMR/Standard Resolution) 400 Pages(MMR/Standard Resolution)
ECM(Error Correction Mode) Yes Yes
Color FAX (Document Send/Receive) No / No No / No
Color FAX (Memory Send/Receive) No / No No / No
LIST/REPORT
Activity Report/Journal Report Yes (up to 200) Yes (up to 200)
Transmission Verification Report Yes Yes
INTERFACE
External TAD Interface Yes Yes
Host Interface (Serial) No No
Host Interface (IEEE1284) No Yes
Host Interface (USB) No Yes
LAN Interface No No
Acceptable Media Card Slot N/A N/A
Analog Video Port N/A N/A

1-7
FAX-8070P/MFC-9070 (2/2)
Model Name FAX-8070P MFC-9070
PRINTER
Color/Mono - Mono
Engine Type - Laser (YL4)
Resolution(dpi) - 600x600
Speed(ppm) - up to 10
Paper Capacity(sheets) - 200
Additional Paper Capacity(sheets) - No
Output Paper Capacity(sheets) - 50
Standard Print Language - Windows GDI
Emulation - Yes(PCL5e)
Resident Fonts - Yes(Bitmap font: LetterGothic16.66, OCR-A, OCR-B,
Scaleable font; 49 fonts )
Fonts Disk Based - Yes
Paper Handling Size - LTR, LGL, A4, B5, A5, EXE
Manual Feed Slot - N/A
Other Paper Type - OHP, Envelopes, Organizer
Sheet Weight (Paper Cassette) - 64-105 g/m2 (17 - 28 lb)
(Manual Slot) - N/A
Printer Driver - Win95/98/98SE/Me,
- WinNT4.0WS/2000Professional
COPY
Color/Mono Mono Mono
Speed(ppm) up to 10 up to 10
Multi Copy(Stack) Yes Yes
Multi Copy(Sort) No Yes
Reduction/Enlargement(%) 50 to 200 in 1% increments 50 to 200 in 1% increments
Resolution(dpi) 200 x 300 200 x 300
SCANNER
Color/Mono - Mono
Resolution(Optical : dpi) - 200x400
Resolution(Int. : dpi) - 1,200x1,200
Gray Scale - 256
TWAIN Compliant & Operating System - Win95/98/98SE/Me,
WinNT4.0WS/2000Professional
PCI Scanner (Parallel/Serial) - Parallel/USB
BUNDLED SOFTWARE (For Windows)
Printer Driver No Yes
TWAIN No Yes
Viewer No Yes
Pop Up Menu No Yes
OCR No Yes
PC Fax No Yes
Remote Setup No Yes
PC Diagnostics Yes Yes
Others - Auto E-mail Printing(Win 95/98/Me only)
BUNDLED SOFTWARE (For iMAC)
Printer Driver No Yes
TWAIN No Yes
Viewer No Yes
Pop Up Menu No No
OCR No Yes
PC Fax No No
Remote Setup No No
PC Diagnostics Yes No
Others -No
ACCESSORY
Life / Yield TN-8000(Toner) (2,200 pages w/5% coverage ) TN-8000(Toner) (2,200 pages w/5% coverage )
DR-8000 ( Drum ) (20,000 pages: Continuous Printing) DR-8000 ( Drum ) (20,000 pages: Continuous Printing)
DR-8000( Drum ) (8,000 pages:1 page/job) DR-8000( Drum ) (8,000 pages:1 page/job)

CHAPTER 2
INSTALLATION

CHAPTER 2 INSTALLATION
CONTENTS
2.1 INSTALLING THE UPDATE DATA TO THE FACSIMILE MACHINE.............................2-1
2.2 SETTING ID CODES TO FACSIMILE MACHINES CONNECTED TO A SINGLE
PC VIA USB .....................................................................................................................2-3

2-1
2.1 INSTALLING THE UPDATE DATA TO THE
FACSIMILE MACHINE
If the program version is updated or the main PCB is replaced, then install the update program
onto the flash ROM of the main PCB.
The program installation requires a PC/AT-compatible computer (which is capable of running MS-
DOS or its compatible OS).
Connecting the facsimile machine to your computer
(1) Make sure that your computer is turned off.
(2) Make sure that the machine's power cord is unplugged from a wall socket.
(3) Connect the parallel interface cable to the parallel port on the back of the machine and secure
it with the lock wires.
(4) Connect the other end of the interface cable to the printer port of your computer and secure it
with the two screws.
(5) Plug the machine's power cord into a wall socket.
(6) Turn on your computer.
Host compute
r
Parallel interface
cable
Lock wires

2-2
Installing the update data onto the flash ROM of the facsimile machine
NOTE: The following is an installation procedure example on a PC that is running Windows 95/98.
(1) Copy the update data and transfer utility onto the desired directory of the hard disk.
e.g., C:\UPDATE
(2) Click the Start button, point to Programs, and then click MS-DOS Prompt to open an MS-DOS
window.
(3) Type the drive letter where the update data and transfer utility are located. In the above
example, type C:\ from the command line and press the ENTER key.
Then type CD UPDATE and press the ENTER key.
(4) Check that your computer is connected with the facsimile machine correctly.
(5) To start the transfer utility transmitting the update data to the flash ROM of the facsimile
machine, type the following:
ICEN filename /b
Then press the ENTER key.
During downloading, the machine beeps intermittently.
Upon completion of the downloading, the machine beeps continuously.
NOTE: If the facsimile machine cannot return to the standby state after completion of downloading,
turn the power off and on.

2-3
2.2 SETTING ID CODES TO FACSIMILE
MACHINES CONNECTED TO A SINGLE PC
VIA USB


Function
Brother facsimile machines are assigned ID codes (character strings) at the factory. If you replace
the main PCB of the machine, the machine will lose its assigned ID code so that it will not be
identified by the connected PC.
To connect those machines to a PC via USB, you need to assign ID codes (character strings) to
those individual machines according to the procedure given here. For models covered by this
manual, set serial numbers given to individual machines as ID codes.


Connecting each of facsimile machines to your PC
(1) Make sure that your PC is turned off.
(2) Make sure that the machine's power cord is unplugged from a wall socket.
(3) Connect the interface cable to the parallel interface port on the back of the facsimile machine
and secure it with the lock wires.
(4) Connect the other end of the interface cable to the printer port of your PC and secure it with
the two screws.
(5) Plug the machine's power cord into a wall socket.
(6) Turn on your PC.


Operating Procedure
(1) On your PC, run the ID setting utility. Follow the instructions shown on the PC's screen and
enter the 9-digit serial number (e.g., G01012345) printed on the nameplate attached to the
back of the facsimile machine as an ID code. Then press the Enter key.
The ID setting utility will transmit the ID code data from your PC to the facsimile machine
and then it will terminate.
The facsimile machine will automatically return to the standby mode.
(2) To check whether the entered character string (ID code) is correct, make the machine enter the
maintenance mode (refer to Chapter 5, Section 5.1) and then press the 1key twice.
The facsimile machine will print out a Configuration List. At the right top of the list, "SER.#:
BROXXXXXXXXX" is printed.
(3) Check that the character string entered in step (2) is printed in "XXXXXXXXX."
If it is OK, press the 9 key twice to exit from the maintenance mode.
If something other than that is printed in XXXXXXXXX, check the connection between the
PC and facsimile machine and go back to step (1).

CHAPTER 3
THEORY OF OPERATION

CHAPTER 3 THEORY OF OPERATION
CONTENTS
3.1 OVERVIEW ......................................................................................................................3-1
3.2 MECHANISMS.................................................................................................................3-2
3.2.1 Scanner Mechanism ............................................................................................3-3
3.2.1.1 Document feeding and ejecting mechanism................................................3-3
3.2.1.2 Scanner........................................................................................................3-3
3.2.2 Laser Printing Mechanism....................................................................................3-4
3.2.2.1 Paper pulling-in, registration, feeding, and ejecting mechanism..................3-4
3.2.2.2 Print process mechanism.............................................................................3-6
3.2.2.3 Heat-fixing mechanism ................................................................................3-7
3.2.3 Sensors and Actuators.........................................................................................3-8
3.3 CONTROL ELECTRONICS...........................................................................................3-10
3.3.1 Configuration......................................................................................................3-10