Brother MFC 9760 - B/W Laser - All-in-One User manual

MULTI-FUNCTION CENTER
SERVICE MANUAL
MODEL: MFC9800/MFC9700/DCP1400
MFC9880/MFC9860/MFC9760

© Copyright Brother 2002
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.
All products and company names mentioned in this manual are trademarks or registered trademarks of their
respective holders.

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 I. GENERAL DESCRIPTION
CHAPTER II. INSTALLATION
CHAPTER III. THEORY OF OPERATION
CHAPTER IV. DISASSEMBLY/REASSEMBLY AND LUBRICATION
CHAPTER V. MAINTENANCE MODE
CHAPTER VI. 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: JULY 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 I.
GENERAL DESCRIPTION

CHAPTER I. GENERAL DESCRIPTION
CONTENTS
1. MACHINE OUTLINE................................................................................................. I-1
1.1 External Appearance and Weight..................................................................... I-1
1.2 Components ..................................................................................................... I-1
2. SPECIFICATIONS..................................................................................................... I-2

I- 1
1. MACHINE OUTLINE
1.1 External Appearance and Weight
The figure below shows the machine appearance and approximate dimensions.
Weight: Machine proper 15.2 kg
Machine (incl. drum unit & toner cartridge) 17.0 kg
In package 21.2 kg
1.2 Components
The machine consists of the following major components:

I- 2
2. SPECIFICATIONS (1/4)
Model Name MFC9800 MFC9700
GENERAL
Print Engine Laser (ZLe) Laser (ZLe)
Modem Speed(bps) 33,600(Fax) 14,400(Fax)
Transmission Speed(sec.) Approx. 2 Approx. 5
ITU-T Group Super G3 G3
Coding Method MH/MR/MMR/JBIG MH/MR/MMR/JBIG
Input/Output Width 5.8"-8.5"/2.75"-8.5" 5.8"-8.5"/2.75"-8.5"
ADF(pages) up to 50 up to 50
LCD Size 16 Characters x 2 Lines 16 Characters x 1 Lines
On-Screen Programming Yes Yes
Back up Clock Yes (9 hours) Yes (1 hours)
Memory Capacity(Physical:MByte) 8 8
Back up Memory Yes No
Optional Memory 16/32MByte(DIMM) No
Optional Paper Tray Yes(250pages:LT-400) Yes(250pages:LT-400)
Dimensions (WxDxH) 19.4x18.0x16.8 inches 19.4x18.0x16.8 inches
492x456x429 mm 492x456x429 mm
Weight 35.2 lbs/(17 kg) 35.2 lbs/(17 kg)
Color Gray 1495 Gray 1495
Standby Mode Yes Yes
PC-Fax Protocol Compliance Class 2 Class 2
Simultaneous Operation Yes Yes
Data Modem No No
Energy Star Compliance (for U.S.A.) Yes Yes
LCD Back Light No No
Operating Environment Temperature 10 - 32.5 degrees Centigrade 10 - 32.5 degrees Centigrade
Humidity 20 - 80%(without condensation) 20 - 80%(without condensation)
Power Source 120VAC 50/60Hz 120VAC 50/60Hz
Power Consumption Less than 15W / 75W / 940W Less than 15W / 75W / 940W
(Sleep/Standby/Peak)
Demo Model N / A Yes([Start]+[Stop])
TELEPHONE
Automatic Redial Yes Yes
Handset No No
One-Touch Dial 32 (16x2) 8 (4x2)
Speed Dial 100 100
Telephone Index Yes Yes
Speaker Phone No No
Chain Dialing Yes Yes
Caller ID Yes Yes
Call Waiting Caller ID No No
Distinctive Ringing Yes Yes
Hold/Mute Key No No
Power Failure Dialing No No
Speaker Volume - -
Ring Volume - -
Handset Volume - -
PBX Feature No No
Transfer Method Flash Flash
Figures of One-Touch & Speed Dial 20 digits 20 digits
Resisterable Number Of Characters 15 char 15 char

I- 3
(1/4)
Model Nam
e
DCP140
0
GENERAL
Print Engine Laser (ZLe)
Modem Speed(bps) -
Transmission Speed(sec.) -
ITU-T Group -
Coding Method -
Input/Output Width 5.8"-8.5"/2.75"-8.5"
ADF(pages) up to 50
LCD Size 16 Characters x 2 Lines
On-Screen Programming Yes
Backup Clock No
Memory Capacity(Physical:MByte) 8
Backup Memory No
Optional Memory No
Optional Paper Tray Yes(250pages:LT-400)
Dimensions (WxDxH) 19.4x18.0x16.8 inches
492x456x429 mm
Weight 35.2 lbs/(17 kg)
Color Gray 1495
Standby Mode Yes
PC-Fax Protocol Compliance -
Simultaneous Operation Yes
Data Modem No
Energy Star Compliance (for U.S.A.) Yes
LCD Back Light No
Operating Environment Temperature 10 - 32.5 degrees Centigrade
Humidity 20 - 80%(without condensation)
Power Source 120VAC 50/60Hz
Power Consumption Less than 15W / 75W / 940W
(Sleep/Standby/Peak)
Demo Model N / A
TELEPHONE
Automatic Redial -
Handset -
One-Touch Dial -
Speed Dial -
Telephone Index -
Speaker Phone -
Chain Dialing -
Caller ID -
Call Waiting Caller ID -
Distinctive Ringing -
Hold/Mute Key -
Power Failure Dialing -
Speaker Volume -
Ring Volume -
Handset Volume -
PBX Feature -
Transfer Method -
Figures of One-Touch & Speed Dial -
Resisterable Number Of Characters -

I- 4
(2/4)
Model Name MFC9800 MFC9700
FAX
Internet FAX Available with Optional LAN Board Available with Optional LAN Board
Easy Receive/Fax Detect Yes Yes
Fax/Tel Switch Yes No
Super Fine Yes (TX & RX) Yes (TX & RX)
300dpi Transmission No No
Gray Scale 64 64
Contrast Yes (Auto/S.Light/S.Dark) Yes (Auto/S.Light/S.Dark)
Smoothing Yes Yes
Call Reservation Over Auto TX No No
Password Check No No
Enhanced Remote Activate Yes Yes
Multi Resolution Transmission No No
Multi Transmission No No
Next-Fax Reservation Yes (Dual Access) Yes (Dual Access)
Delayed Timer Yes (up to 50) Yes (up to 50)
Polling (RX only) Yes (Std/Seq) Yes (Std/Seq)
Quick Scan (Memory Transmission) Approx. 3 sec./page (A4:standard) Approx. 3 sec./page (A4:standard)
Broadcasting Yes (182 locations) Yes (158 locations)
Batch Transmission Yes Yes
Auto Reduction Yes Yes
Out-of-Paper Reception *2 up to 600 pages up to 600 pages
Dual Access Yes Yes
ECM(Error Correction Mode) Yes Yes
ITU SUB Addressing No No
Group Dial Yes (6) Yes (6)
Resend After Receive Error Signal No No
Confidential No No
Station ID 1 (20digits/20char) 1 (20digits/20char)
Off Hook Alarm No No
Remote Maintenance Yes Yes
Call Reservation Over Manual TX No No
RX Mode Indication LCD LCD
Resolution Indication LED LCD
LIST REPORT
Activity Report/Journal Report Yes (up to 200) Yes (up to 200)
Transmission Verification Report Yes Yes
Coverpage Yes (Super) Yes (Super)
Help List Yes Yes
Call Back Message No No
Caller ID List Yes Yes
INTERFACE
External TAD Interface Yes Yes
Missing Link/PC Interface No No
Host Interface Yes (Auto switching : Parallel/USB *3) Yes (Auto switching : Parallel/USB *3)
LAN Interface Available with Option LAN Board Available with Option LAN Board