Brother FAX 560 User manual

FACSIMILE EQUIPMENT
SERVICE MANUAL
MODEL: FAX560/FAX580MC/MFC660MC
FAX-T72/FAX-T74/FAX-T76/FAX-T78
FAX-T82/FAX-T84/FAX-T86
FAX645/FAX685MC/MFC960MC
FAX1280/FAX1980MC/FAX816

©Copyright Brother 2001-2003
All rights reserved.
No part of this publication may be reproduced in any
form or by any means without permission in writing
from the publisher.
Specifications are subject to change without notice.

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 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. 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.

CHAPTER I.
GENERAL DESCRIPTION

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

I- 1
1. EQUIPMENT OUTLINE
1.1 External Appearance and Weight
The figure below shows the equipment appearance and approximate dimensions.
Models except
European models European models
Weight: Machine proper (excluding accessories) Approx. 2.9 kg Approx. 3.0 kg
In package MFC660MC/MFC960MC
Other models Approx. 4.5 kg
Approx. 4.1 kg 
Approx. 4.3 kg
1.2 Components
The equipment consists of the following major components:
FAX-T78
Models except
FAX-T78

I- 2
2. SPECIFICATIONS
The tables below list the detailed specifications of typical models. The specifications of other
models differ from them on the points of with/without handset, LCD type and others according to
destinations as shown on page I-7. (1/2)
Model Name FAX560 FAX580MC MFC660MC
Engine Thermal transfer Thermal transfer Thermal transfer
Color Upper: New Personal white
(1485)
Lower: 1473 gray
Upper: New Personal white
(1485)
Lower: 1473 gray
Upper: MFC white
(1495 gray)
Lower: 1473 gray
Transmission Speed (sec) 15 9 9
Modem Speed (bps) 9600 14,400 14,400
Group Compatibility G3 G3 G3
Input/Output Width 8.5"/8.5" 8.5"/8.5" 8.5"/8.5"
ADF (pages) 10 10 10
Paper Feeder (sheets) Letter: 50*, Legal: 30 Letter: 50*, Legal: 30 Letter: 50*, Legal: 30
Ribbon Yield (letter-size) 150 pages (47 m) 150 pages (47 m) 150 pages (47 m)
Starter Ribbon Yield (letter-size) 30 pages (10 m) 30 pages (10 m) 30 pages (10 m)
Replacement Roll PC401: 47 m (150 pages) PC401: 47 m (150 pages) PC401: 47m (150 pages)
LCD Size 16 x 1 16 x 1 16 x 1
On-Screen Programming Yes Yes Yes
Super Fine Yes Yes Yes
Smoothing Yes Yes Yes
Gray Scale (levels) 64 by Dithered 64 by Dithered 64 by Dithered
One Touch 4 4 4
Speed Dial 50 50 50
Telephone Index Yes as "Search" Yes as "Search" Yes as "Search"
Speaker Phone Monitor Full duplex (digital) Full duplex (digital)
Handset Yes Yes Yes
FAX/TEL Switch Yes Yes Yes
Distinctive Ring Detection Yes Yes Yes
Caller ID Yes Yes Yes
Call Waiting Caller ID Yes Yes Yes
TAD Interface Yes Yes Yes
Enhanced Remote Activation Yes Yes Yes
Automatic Redial Yes Yes Yes
Next-FAX Reservation Yes Yes Yes
Multi-Resolution Transmission Yes Yes Yes
Polling Type Sim/Seq Sim/Seq Sim/Seq
Delayed Transmission 3-timer 3-timer 3-timer
Call Reservation Yes Yes Yes
Electronic Coverpage Yes-Super Yes-Super Yes-Super
Call Back Message Yes Yes Yes
Activity Report Yes Yes Yes
TX Verification Report Yes Yes Yes
Memory Capacity (pages) 512 KB
(up to 25 pages for OPR**) 512 KB
(up to 25 pages for OPR**)
512 KB
(up to 25 pages for OPR**)
ECM Yes Yes Yes
Broadcasting Yes Yes Yes
*Paper feeder: 50 sheets for US/Canada
**Page memory: 25 pages in OPR (out-of-paper reception), 22 pages in quick scan

I- 3
(1/2)
Model Name FAX-T72 FAX-T74
Engine Thermal transfer Thermal transfer
Color New Personal black (1293) New Personal black (1293)
Transmission Speed (sec) 15 15
Modem Speed (bps) 9600 9600
Group Compatibility G3 G3
Input/Output Width 8.5"/8.5" 8.5"/8.5"
ADF (pages) 10 10
Paper Feeder (A4-size) 30 sheets 30 sheets
Ribbon Yield (A4-size) 144 pages (47 m) 144 pages (47 m)
Starter Ribbon (A4-size) Yes-10 m (30 pages) Yes-10 m (30 pages)
LCD Size 16 x 1 16 x 1
On-Screen Programming Yes Yes
Super Fine Yes Yes
Smoothing Yes Yes
Gray Scale (levels) 64 by Dithered 64 by Dithered
One Touch 4 4
Speed Dial 50 50
Telephone Index Yes as "Search" Yes as "Search"
Speaker Phone Monitor Monitor
Handset No Yes
FAX/TEL Switch Yes Yes
Caller ID Yes
GER/FRA/SPA Yes GER/HOL/SWE/UK/IRE/
FRA/NOR/BEL/DEN/SPA
Call Waiting Caller ID No No
Distinctive Ring Detection No Yes for DEN/UK
TAD Interface Yes Yes
Enhanced Remote Activation Yes Yes
Automatic Redial Yes Yes
Next-FAX Reservation Yes Yes
Multi-Resolution Transmission Yes Yes
Polling Type Sim/Sec/Del/Seq Sim/Sec/Del/Seq
Delayed Transmission 3-timer 3-timer
Call Reservation Yes Yes
Electronic Coverpage Yes-Super Yes-Super
Callback Message Yes Yes
Journal Report Yes Yes
TX Verification Report Yes Yes
Memory Capacity 512 KB
(up to 20 pages for OPR*) 512 KB (up to 20 pages for OPR*)
ECM Yes Yes
Broadcasting Yes Yes
Quick Scan Yes Yes
*Page memory: 20 pages ITU-T No.1 chart in OPR (out-of-paper reception) in the ECM mode

I- 4
(1/2)
Model Name FAX-T76 FAX-T78
Engine Thermal transfer Thermal transfer
Color New Personal black (1293) White (1517)
Transmission Speed (sec) 9 9
Modem Speed (bps) 14,400 14,400
Group Compatibility G3 G3
Input/Output Width 8.5"/8.5" 8.5"/8.5"
ADF (pages) 10 10
Paper Feeder (A4-size) 30 sheets 30 sheets
Ribbon Yield (A4-size) 144 pages (47 m) 144 pages (47 m)
Starter Ribbon (A4-size) Yes-10 m (30 pages) Yes-10 m (30 pages)
(Not applicable to UK model)
LCD Size 16 x 1 16 x 2 + pict sign
On-Screen Programming Yes Yes
Super Fine Yes Yes
Smoothing Yes Yes
Gray Scale (levels) 64 by Dithered 64 by Dithered
One Touch 4 N/A
Speed Dial 50 100
Telephone Index Yes as "Search" Yes as "Jog Search"
Speaker Phone Full duplex (digital) Full duplex (digital)
Handset Yes Yes
FAX/TEL Switch Yes Yes
Caller ID Yes
GER/HOL/SWE/UK/IRE/FRA/
NOR/BEL/DEN/SPA
Yes
GER/UK/FRA/BEL/SPA
Call Waiting Caller ID No No
Distinctive Ring Detection Yes for DEN/UK Yes for UK
TAD Interface Yes Yes
Enhanced Remote Activation Yes Yes
Automatic Redial Yes Yes
Next-FAX Reservation Yes Yes
Multi-Resolution Transmission Yes Yes
Polling Type Sim/Sec/Del/Seq Sim/Sec/Del/Seq
Delayed Transmission 3-timer 3-timer
Call Reservation Yes Yes
Electronic Coverpage Yes-Super Yes-Super
Callback Message Yes Yes
Journal Report Yes Yes
TX Verification Report Yes Yes
Memory Capacity 512 KB
(up to 20 pages for OPR*) 512 KB (up to 20 pages for OPR*)
ECM Yes Yes
Broadcasting Yes Yes
Quick Scan Yes Yes
*Page memory: 20 pages ITU-T No.1 chart in OPR (out-of-paper reception) in the ECM mode

I- 5
(1/2)
Model Name FAX-T82
FAX-T84
FAX-T86
Engine Thermal Transfer Thermal Transfer Thermal Transfer
Color WHITE (1517)
WHITE (1517)
WHITE (1517)
Transmision Speed (sec) 15 15 9
Modem Speed (bps) 9600 9600 14,400
Group Compatibility G3 G3 G3
Input/Output Width 8.5"/8.5" 8.5"/8.5" 8.5"/8.5"
ADF(pgs) 10 10 10
Paper Cassette ( A4 size ) 30 Sheets 30 Sheets 30 Sheets
Ribbon Yield ( A4 size ) 144 Pages ( 47 m ) 144 Pages ( 47 m ) 144 Pages ( 47 m )
Starter ribbon ( A4 size ) Yes - 10 m ( 30 pages ) Yes - 10 m ( 30 pages ) Yes - 10 m ( 30 pages )
LCD Size 16X1 16X1 16X1
On-Screen Programming Yes Yes Yes
Super Fine Yes Yes Yes
Smoothing Yes Yes Yes
Gray Scale (levels) 64 by Dithered 64 by Dithered 64 by Dithered
One Touch 4 4 4
Speed Dial 100 100 100
Telephone Index Yes as "Search" Yes as "Search" Yes as "Search"
Speaker Phone Monitor Monitor Full duplex ( digital )
Handset No Yes Yes
FAX/TEL Switch Yes Yes Yes
Caller ID Yes
FRA/SPA/GER/AUS Yes HOL/SWE/UK/IRE/
FRA/NOR/BEL/DEN/SPA/
GER/AUS/POR
Yes
HOL/SWE/UK/IRE/
FRA/NOR/BEL/DEN/SPA/
GER/AUS/POR
Call waiting caller ID No No No
Distinctive Ring Detection No Yes for DEN/UK Yes for DEN/UK
TAD Interface Yes Yes Yes
Enhanced Remote Activation Yes Yes Yes
Automatic Redial Yes Yes Yes
Next-FAX Reservation Yes Yes Yes
Multi-Resolution Transmission Yes Yes Yes
Polling Type Sim/Sec/Del/Seq Sim/Sec/Del/Seq Sim/Sec/Del/Seq
Delayed Transmission 3-timer 3-timer 3-timer
Call Reservation Yes Yes Yes
Electronic Coverpage Yes - Super Yes - Super Yes - Super
Call Back Message Yes Yes Yes
Journal Report Yes Yes Yes
TX Verification Report Yes Yes Yes
Memory Capacity (pgs) 512KB
(up to 20pages for OPR*) 512KB (up to 20pages for OPR*) 512KB (up to 20pages for OPR*)
ECM Yes Yes Yes
Broadcasting Yes Yes Yes
Quick-Scan Yes Yes Yes
*Page memory: 20 pages ITU-T No.1 chart in OPR (out-of-paper reception) in the ECM mode

I- 6
(2/2)
Model Name FAX560 FAX580MC MFC660MC
Quick Scan Yes Yes Yes
Out-of-Paper Reception Yes Yes Yes
Multi-Copying w/ Sorting Yes Yes Yes
Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%) Yes (50-150%)
Multi-Transmission No No No
Confidential Mailbox No No No
Auto Reduction Yes Yes Yes
Message Center No Yes Yes
TAD Recording Time No 15 minutes 15 minutes
Fax Forwarding/Paging Yes Yes Yes
Fax Retrieval Yes Yes Yes
Fax-/Voice-on-Demand No No No
Fax & Voice Mailbox No No No
Help List Yes Yes Yes
Missing Link No Ready Included
Optional Memory No No No
Voice Alarm No No No
Output Tray Yes, wire included. Yes, wire included. Yes, wire included.
Others Call Manage Call Manage Call Manage

I- 7
(2/2)
Model Name FAX-T72 FAX-T74
Out-of-Paper Reception Yes Yes
Multi-Copying w/ Sorting Yes Yes
Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%)
Multi-Transmission No (w/o SHIFT key) No (w/o SHIFT key)
Confidential Mailbox No No
Auto Reduction Yes Yes
Message Manager No No
TAD Recording Time No No
Fax Forwarding/Paging Yes-Only Fax Forwarding Yes-Only Fax Forwarding
Fax Retrieval Yes Yes
Fax-/Voice-on-Demand No No
Fax & Voice Mailbox No No
Help List Yes Yes
MFL PRO for FAX No No
Optional Memory No No
Memo Manager No No
Mute Key No Yes-music on hold;
Green Sleeves
Backup for Clock 9 hours 9 hours
Output Tray Not available Not available
Backup for Page Memory No No
Power Consumption Standby:
Less than 2 W (SWITZ)
Less than 5 W (Other countries)
Peak: 150 W
Standby:
Less than 2 W (SWITZ, DEN)
Less than 5 W (Other countries)
Peak: 150 W
Others 

I- 8
(2/2)
Model Name FAX-T76 FAX-T78
Out-of-Paper Reception Yes Yes
Multi-Copying w/ Sorting Yes Yes
Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%)
Multi-Transmission No (w/o SHIFT key) No (w/o SHIFT key)
Confidential Mailbox No No
Auto Reduction Yes Yes
Message Manager Yes Yes
TAD Recording Time 15 minutes 15 minutes
Fax Forwarding/Paging Yes-both Yes-both
Fax Retrieval Yes Yes
Fax-/Voice-on-Demand No No
Fax & Voice Mailbox No No
Help List Yes Yes
MFL PRO for FAX Ready No
Optional Memory No No
Memo Manager No No
Mute Key Yes-music on hold;
Green Sleeves Yes-music on hold; 4 melodies, 8 patterns, and OFF
Backup for Clock 15 hours 15 hours
Output Tray Not available Not available
Backup for Page Memory 6 hours 6 hours
Power Consumption Standby:
Less than 2 W (SWITZ, DEN)
Less than 5 W (Other countries)
Peak: 150 W
Standby:
Less than 2 W (SWITZ)
Less than 5 W (Other countries)
Peak: 150 W
Others Ringer pattern:
8 patterns available

I- 9
(2/2)
Model Name FAX-T82
FAX-T84
FAX-T86
Out-of-Paper Reception Yes Yes Yes
Multi-Copying w/Sorting Yes Yes Yes
Enlargement/Redcution Ratio Yes(50-150%) Yes(50-150%) Yes(50-150%)
Multi-Transmision No ( w/o SHIFT key) No ( w/o SHIFT key) No ( w/o SHIFT key)
Confidential MailBox No No No
Auto Reduction Yes Yes Yes
Message Manager No No Yes
TAD Recording Time No No 15 minutes
Fax Forwarding/Paging Yes - Only Fax Forwarding Yes - Only Fax Forwarding Yes - both
Fax Retrieval Yes Yes Yes
Fax & Voice on Demand No No No
Fax & Voice Mailbox No No No
Help List Yes Yes Yes
MFL PRO for fax No No No
Optional Memory No No No
Memo Manager No No No
Mute key No Yes - music on hold;
Green Sleeves
Yes - music on hold;
Green Sleeves
Backup for clock 9 hours 9 hours 15 hours
Output tray Not available Not available Not available
Backup for Page Memory 6 hours 6 hours 6 hours
Power Consumption Stand-by: under 5 w***
Peak: 170 w Stand-by: under 5 w*** Peak: 170 w Stand-by: under 5 w*** Peak: 170 w
Others -
Relationship between models and destinations
Base models MC models
w/o handset w/ handset Single-row LCD Double-row LCD
w/ job dial
American models FAX560 FAX580MC/MFC660MC 
European models FAX-T72/FAX-T82 FAX-T74/FAX-T84 FAX-T76/FAX-T86 FAX-T78
Asian/Oceanic models FAX645 FAX685MC/MFC960MC 
Chinese models FAX1280 FAX1980MC 
Taiwanese models FAX816 

CHAPTER II.
INSTALLATION

CHAPTER III.
THEORY OF OPERATION

CHAPTER III. THEORY OF OPERATION
CONTENTS
1. OVERVIEW ............................................................................................................... III-1
2. MECHANISMS .......................................................................................................... III-2
2.1 Scanning Mechanism........................................................................................ III-3
Automatic document feeder (ADF) ................................................................... III-3
Scanner............................................................................................................. III-3
2.2 Printing Mechanism .......................................................................................... III-3
Automatic cut sheet feeder (ACF) and registration mechanism ....................... III-3
Printing and paper ejecting mechanism ............................................................ III-3
2.3 Power Transmission Switching Mechanism ..................................................... III-3
2.4 Sensors and Actuators...................................................................................... III-4
3. CONTROL ELECTRONICS ...................................................................................... III-6
3.1 Configuration..................................................................................................... III-6

III - 1
1. OVERVIEW
*Not provided on models w/o handset.
**Provided on MC models.

III - 2
2. MECHANISMS
The facsimile equipment is classified into the following mechanisms:
Scanning Mechanism - ADF mechanism
- Document scanning & feeding mechanism
Printing Mechanism - ACF and registration mechanism
- Printing and paper ejecting mechanism
Power Transmission Switching Mechanism
Sensors and Actuators

III - 3
2.1 Scanning Mechanism
The scanning mechanism consists of the document stacker, automatic document feeder (ADF),
separation roller, document LF roller, scanner, document ejection roller, and document sensors.
(For details about the sensors, refer to Section 2.4.)
Automatic document feeder (ADF)
If you set documents with their faces down on the stacker and start the transmitting operation, the
ADF (consisting of the separation roller and ADF parts) feeds those documents into the equipment,
starting from the bottom sheet (first page) to the top (last page), page by page. Each document
advances to the scanner with the document LF roller, and then it is fed out of the equipment with
the document ejection roller.
Scanner
The scanner uses a contact image sensor (CIS) unit which consists of an LED array illuminating
documents, a self-focus lens array collecting the reflected light, a CIS PCB carrying out
photoelectric conversion to output picture element data, and a cover glass on which a document
advances. When the document passes between the document pressure bar and the cover glass, it
is scanned.
2.2 Printing Mechanism
The printing mechanism consists of the paper feeder, automatic cut sheet feeder (ACF), paper feed
roller 32, platen, thermal recording head, paper ejection roller, and sensors. (For details about the
sensors, refer to Section 2.4.)
Automatic cut sheet feeder (ACF) and registration mechanism
If the operator sets cut sheets into the paper feeder and receiving operation starts, the ACF (paper
feed roller 32 and ACF parts) feeds paper into the equipment, a sheet at a time. After the leading
edge of paper passes through the registration sensor actuator, the paper is further fed for the
specified time length. Accordingly, the leading edge will reach the platen where the paper skew will
be eliminated.
Printing and paper ejecting mechanism
The platen feeds the paper up to the printing position where the thermal recording head prints while
the thermal ink ribbon advances. Then the paper is fed out of the equipment with the paper ejection
roller.
2.3 Power Transmission Switching Mechanism
The facsimile equipment has a single drive motor whose power transmission route can be switched
by the planetary gear system and by changing the motor rotation direction. This switching allows the
equipment to function in five operation modes—scanning, paper feeding, recording, paper ejecting,
and copying modes.
To switch to a particular mode, the motor rotates in the reverse direction. If the switching arm of the
planet gear ASSY turns on the arm HP switch, the motor further rotates by the specified number of
pulses to locate the planet gear ASSY in the particular mode position. Then the motor rotates in the
forward direction to enter the particular mode.