Brother FAX-545 User manual

Confidential
FACSIMILE EQUIPMENT
SERVICE MANUAL
MODELS: FAX-575
FAX-T102/T104/T106
FAX-817/827/837MC
FAX-878

Confidential
© Copyright Brother 2008
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.
All product and company names mentioned in this
manual are trademarks or registered trademarks of
their respective holders.
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 machine functions, repair the
machine 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 main PCB has been replaced.
CHAPTER 7 CLEANING
Not applicable.

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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 customize the memory (EEPROM: electrically erasable
programmable read-only memory) contents 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
Not applicable.
Appendix 3 Customizing Codes According to Shipping Destination
Provides instructions on how to set up 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, therefore, you will need to set
up the proper customizing code with the machine in the maintenance mode.
Customizing codes come with the firmware data provided by Brother Industries.
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 Deletion of Personal Information
Provides instructions on how to delete personal information recorded in the machine.
This manual describes the models and their versions destined for major countries. The specifications and
functions are subject to change depending upon each destination.

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SAFETY PRECAUTIONS
To use the fax machine safely
Please refer to these instructions for later reference and before attempting any maintenance.
WARNING
There are high voltage electrodes inside the fax
machine. Before you clean the fax machine,
make sure you have unplugged the telephone
line cord first and then the power cord from the
electrical socket.
Do not handle the plug with wet hands. Doing
this might cause an electrical shock. DO NOT
pull on the middle of the AC power cord. Doing
this might cause an electrical shock.
After you have just used the fax machine, some
internal parts are extremely HOT! Please be
careful.
WARNING
Use caution when installing or modifying telephone lines. Never touch telephone wires or terminals that are
not insulated unless the telephone line has been disconnected at the wall socket. Never install telephone
wiring during a lightning storm. Never install a telephone socket in a wet location.
This product must be installed near an electrical socket that is easily accessible. In case of emergencies, you
must disconnect the power cord from the electrical socket in order to shut off power completely.
If the machine becomes hot, releases smoke, or generates any strong smells, immediately unplug the
machine from the electrical socket. Call your Brother dealer or Brother Customer Service.
If metal objects, water or other liquids get inside the machine, immediately unplug the machine from the
electrical socket. Call your Brother dealer or Brother Customer Service.
This product should be connected to an AC power source within the range indicated on the rating label. DO
NOT connect it to a DC power source or inverter. If you are not sure, contact a qualified electrician.
Always make sure the plug is fully inserted.

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DO NOT use the machine if the power cord is frayed or damaged, doing so may cause a fire.
IMPORTANT SAFETY INSTRUCTION
When using your telephone equipment, basic safety precautions should always be followed to
reduce the risk of fire, electric shock and injury to persons, 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 (other than a cordless type) 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 fax machine.
SAVE THESE INSTRUCTIONS
Choosing a location
Place the fax machine on a flat, stable surface that is free of vibration and shocks, such as a desk. Put the fax
machine near a telephone socket and a standard, grounded electrical socket. Choose a location where the
temperature remains between between 10°C-35°C.
Caution
Avoid placing the fax machine in a high-traffic area.
Do not place near heaters, air conditioners, water, chemicals, or refrigerators.
Do not expose the fax machine to direct sunlight, excessive heat, moisture, or dust.
Do not connect the fax machine to electrical sockets controlled by wall switches or automatic timers.
Disruption of power can wipe out information in the fax machine’s memory.
Do not connect the fax machine to electrical sockets 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.

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CHAPTER 1
PARTS NAMES & FUNCTIONS

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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.
CONTENTS
1.1 OUTLINE .........................................................................................................................1-1
1.2 CONTROL PANEL .......................................................................................................... 1-3
1.3 COMPONENTS ............................................................................................................... 1-9

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1.1 OUTLINE
Front view
FAX-575/FAX-T102/FAX-T104/FAX-T106/FAX-817/FAX-827/FAX-837MC
FAX-878

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Rear view
(11) AC power connector
(13) Telephone line socket
(12) External telephone line
socket (not for UK)
No. Name Description
(1) Power cord Use to connect the fax machine to the electrical socket.
(2) Telephone line cord Connect the fax machine to a telephone wall socket.
(3) Telephone handset Use when receiving or making voice calls.
(4) Handset curled cord Use to connect the handset to the fax machine.
(5) Paper wire extension Supports the paper in the paper tray.
(6) Document support Supports documents in the ADF.
(7) Paper tray Load paper here.
(8) Paper guides Press and slide to fit the document width.
(9) Control panel Use the keys and display to control the fax machine.
(10) Cover open lever To open the top cover, lift this lever.
(11) AC power connector Plug in the power cord here.
(12) External telephone line socket
(EXT.) (not for UK) Plug in the telephone line of an external telephone here.
(13) Telephone line socket (LINE) Plug in the telephone line here.

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1.2 CONTROL PANEL
 FAX-T106/FAX-837MC
The model of Fax-T106 is represented to indicate the illustration and description
1
2
3
45 6 789
10 11
12
13
14
1617
15
1. LCD (Liquid Crystal Display) 4. R
Displays messages on the screen to help you set up
and operate your fax machine.
Use this key to gain access to an outside line and/or
to recall the operator or transfer a call to another
extension when it is connected to a PABX.
2. Play/Record 5. Speaker Phone
Lets you listen to voice messages and print fax
messages stored in memory. This also lets you record
telephone calls.
Lets you speak to another party without lifting the
handset.
3. Dial Pad 6. Redial/Pause
Use these keys to dial telephone and fax numbers
and as a keyboard for entering information into the
fax machine.
# key lets you switch the dialing type during a
telephone call from "PULSE" to "TONE".
Redials the last number you called. It also inserts a
pause in Quick-Dial numbers.

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7. Search/Mute 14. Erase
Lets you look up numbers stored in the dialing
memory, lets you put calls on hold and lets you dial
stored numbers by pressing # and a two-digit
number.
Lets you delete voice messages, all fax messages or
all messages.
8. Receive Mode 15. (Microphone)
Use to select how your fax machine will handle
incoming calls.
Picks up your voice when you speak to another party
using Speaker Phone.
9. Resolution 16. Digital TAD
Adjusts the resolution when you send a fax or make
a copy.
Lets you activate Message Manager. Also, notifies
you that you have voice or fax messages in the
memory.
10. Stop/Exit 17. Navigation Keys
Stops a fax, cancels an operation or exits from the
menu.
11. Fax Start
Starts an operation, such as sending a fax.
12. Copy/Reports
With a document in the ADF: Makes a copy.
Without a document in the ADF: Lets you access the
Reports menu.
13. One-Touch Dial Keys
These keys give you instant access to previously
stored Quick-Dial numbers.
Menu/Set
The same key is used for menu and set operation.
Lets you access the menu to program and store your
settings in the fax machine.
or
Press to scroll forward or backward to see a menu
selection.
- OR -
You can press these keys to adjust ring or speaker
volume.
or
Press to scroll through the menus and options.
You can also use these keys to do a numerical search
for stored numbers.

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FAX-575/FAX-T102/FAX-T104/FAX-817/FAX-827
The model of Fax-T104 is represented to indicate the illustration and description
1
2
34 5 678 9
10
11
12
13
1. LCD (Liquid Crystal Display) 4. Tel
Displays messages on the screen to help you set up
and use your fax machine.
Use to toggle the line between handset and monitor
speaker.
2. Dial Pad 5. Redial/Pause
Use these keys to dial telephone and fax numbers
and as a keyboard for entering information into the
fax machine.
The # key lets you temporarily switch the dialing
type during a telephone call from "PULSE" to
"TONE".
Redials the last number you called. It also inserts a
pause in Quick-Dial numbers.
3. R 6. Search/Mute
Use this key to gain access to an outside line and/or
to recall the operator or transfer a call to another
extension when it is connected to a PABX.
Lets you look up numbers stored in the dialing
memory, lets you put calls on hold and lets you dial
stored numbers by pressing # and a two-digit
number.

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7. Receive Mode 13. Navigation Keys
Use to select how your fax machine will handle
incoming calls.
8. Resolution
Adjusts the resolution when you send a fax or make
a copy.
9. Stop/Exit
Stops a fax, cancels an operation or exits from the
menu.
10. Fax Start
Starts an operation, such as sending a fax.
Menu/Set
The same key is used for menu and set operations.
Lets you access the menu to program and store your
settings in the fax machine.
or
Press to scroll forward or backward to see a menu
selection.
- OR -
You can press these keys to adjust the beeper, ring or
speaker volume.
or
Press to scroll through the menus and options.
You can also use these keys to do a numerical search
for stored numbers.
11. Copy/Reports
With document in the ADF: Makes a copy.
Without document in the ADF: Lets you access the
Reports menu.
12. One-Touch Keys
These keys give you instant access to previously
stored Quick-Dial numbers.

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FAX-878
The model of Fax-878 is represented to indicate the illustration and description
1. LCD (Liquid Crystal Display) 4. Dial Pad
Displays messages on the screen to help you set up
and use your fax machine.
Use these keys to dial telephone and fax numbers
and as a keyboard for entering information into the
fax machine.
The # key lets you temporarily switch the dialling
type during a telephone call from "PULSE" to
"TONE" (not available in New Zealand).
2. One-Touch Keys 5. Recall
These 6 keys give you instant access to 12 previously
stored Quick-Dial numbers.
Use this key to gain access to an outside line (for
Australia and New Zealand only) and/or to recall the
operator or transfer a call to another extension when
it is connected to a PABX.
3. Shift 6. Search/Mute
To access One-Touch numbers 7 to 12, hold down
Shift as you press One-Touch key.
Lets you look up numbers stored in the dialling
memory, lets you put calls on hold and lets you dial
stored numbers by pressing # and a two-digit
number.

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7. Stop/Exit 13. Redial/Pause
Stops a fax, cancels an operation or exits from the
menu.
Redials the last number you called. It also inserts a
pause in Quick-Dial numbers.
8. Copy/Reports 14. Navigation Keys:
With document in the ADF: Makes a copy.
Without document in the ADF: Lets you access the
Reports menu.
9. Receive Mode
Use to select how your fax machine will handle
incoming calls.
10. Fax Start
Starts an operation, such as sending a fax.
Menu/Set
The same key is used for menu and set operations.
Lets you access the menu to program and store your
settings in the fax machine.
or
Press to scroll forward or backward to see a menu
selection.
- OR -
You can press these keys to adjust the beeper, ring or
speaker volume.
or
Press to scroll through the menus and options.
You can also use these keys to do a numerical search
for stored numbers.
11. Resolution
Adjusts the resolution when you send a fax or make
a copy.
12. Hook
Lets you dial telephone and fax numbers without
lifting the handset.

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1.3 COMPONENTS
The machine consists of the following major components:
*1 Not provided on the FAX-T102.
*2 FAX-T102
*3 FAX-837MC/FAX-T106

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CHAPTER 2
SPECIFICATIONS

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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 for the Paper Tray.............................................................. 2-2
2.2 SPECIFICATIONS LIST .................................................................................................. 2-3

2-1 Confidential
2.1 GENERAL
2.1.1 General Specifications
Type Desktop facsimile transceiver
Memory Capacity 512 KB
Paper Tray 64 g/m2– 90 g/m2: Up to 30 sheets
Paper Output 64 g/m2– 90 g/m2: Up to 20 sheets
Printer Type Line Thermal with Ribbon
LCD (Liquid Crystal Display) 16 characters x 1 Line
Operating Environment Temperature: 5 - 35°C
Humidity: 20 - 80%
Best Print Quality 20 - 30°C
Power Source 220 - 240 VAC 50/60 Hz
Power Consumption Standby: Under 4.4 watts (FAX-T104)
Under 4.8 watts (FAX-T106)
Under 4.0 watts (FAX-878)
Operating: under 160 watts
Dimensions (W x D x H) 11.9 x 7.4 x 5.4 inches (302 x 188 x 138 mm)
(with paper tray and paper wire extension) 11.9 x 10.5 x 13.4 inches (302 x 267 x 340 mm)
FAX-575/FAX-T102/FAX-T104/FAX-T106/FAX-817/FAX-827/FAX-837MC