Brother FAX 750 Manuel utilisateur

FACSIMILE EQUIPMENT

SERVICE MANUAL

MODEL: FAX750/FAX770/FAX870MC

FAX-910/FAX-920/FAX-921/FAX-930/FAX-931

MFC-925/MFC970MC

©Copyright Brother 1998

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

CONTENTS

1. EQUIPMENT OUTLINE............................................................................................I-1

1.1External Appearance and Weight.....................................................................I-1

1.2Components......................................................................................................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.

Weight: Machine proper (excluding a ribbon cartridge) Approx. 4 kg (8.82 lbs.)

In package Approx. 6 kg (13.23 lbs.)

1.2 Components

The equipment consists of the following major components:

I- 2

2. SPECIFICATIONS

Model Name FAX750 FAX770

Engine Thermal transfer Thermal transfer

Color Black (1395) White (1397)

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

Recording Paper Loadable 100 sheets 100 sheets

Ribbon Life (Letter-size print) 250 pages (77 m) 250 pages (77 m)

Starter Ribbon Life (Letter-size print) 100 pages (30 m) 100 pages (30 m)

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 8 8

Speed Dial 40 40

Telephone Index Yes Yes

Speaker Phone Monitor Monitor

Handset Yes Yes

FAX/TEL Switch Yes Yes

Distinctive Ring Detection* Yes Yes

Caller ID* Yes Yes

Call Waiting Caller ID* Yes Yes

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 Std/Seq Std/Seq

Delayed Transmission 1-timer 1-timer

Call Reservation Yes Yes

Electronic Coverpage Yes - Super Yes - Super

Call Back Message Yes Yes

Activity Report Yes Yes

TX Verification Report Yes Yes

Memory Capacity (pages) 512 KB (20 pages) 512 KB (20 pages)

ECM Yes Yes

Broadcasting Yes Yes

Quick-Scan Yes Yes

Out-of-Paper Reception Yes Yes

Multi-Copying w/ Sorting Yes Yes

Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%)

Multi-Transmission No No

Confidential Mailbox No No

Auto Reduction Yes Yes

Message Center No No

TAD Recording Time No No

Fax Forwarding/Paging No Yes

Fax Retrieval No Yes

Fax-/Voice-on-demand No No

Fax & Voice Mailbox No No

Help List Yes Yes

Missing Link/Multifunction Link Ready Ready

Optional Memory No No

Voice Alarm No No

Others

* Check your local telephone company for availability of this service.

I- 3

Model Name FAX870MC MFC970MC

Engine Thermal transfer Thermal transfer

Color White (1397) White (1138)

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

Recording Paper Loadable 100 sheets 100 sheets

Ribbon Life (Letter-size print) 250 pages (77 m) 250 pages (77 m)

Starter Ribbon Life (Letter-size print) 100 pages (30 m) 100 pages (30 m)

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 8 8

Speed Dial 40 40

Telephone Index Yes Yes

Speaker Phone Full duplex (digital) Full duplex (digital)

Handset Yes Yes

FAX/TEL Switch Yes Yes

Distinctive Ring Detection* Yes Yes

Caller ID* Yes Yes

Call Waiting Caller ID* Yes Yes

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 Std/Seq Std/Seq

Delayed Transmission 1-timer 1-timer

Call Reservation Yes Yes

Electronic Coverpage Yes - Super Yes - Super

Call Back Message Yes Yes

Activity Report Yes Yes

TX Verification Report Yes Yes

Memory Capacity (pages) 512 KB (20 pages) 512 KB (20 pages)

ECM Yes Yes

Broadcasting Yes Yes

Quick-Scan Yes Yes

Out-of-Paper Reception Yes Yes

Multi-Copying w/ Sorting Yes Yes

Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%)

Multi-Transmission No No

Confidential Mailbox No No

Auto Reduction Yes Yes

Message Center Yes Yes

TAD Recording Time 15 minutes 15 minutes

Fax Forwarding/Paging Yes Yes

Fax Retrieval Yes Yes

Fax-/Voice-on-demand Voice-on-demand Voice-on-demand

Fax & Voice Mailbox Yes Yes

Help List Yes Yes

Missing Link/Multifunction Link Ready Included

Optional Memory No No

Voice Alarm No No

Others

* Check your local telephone company for availability of this service.

I- 4

Model Name FAX-910 FAX-920/921

Engine Thermal Transfer Thermal Transfer

Color Black(1395) Black(1395)/White(1397/1138)

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

Recording Paper Loadable 100 sheets 100 sheets

Ribbon Life (A4-size print) 235 pages 235 pages

Starter Ribbon Life (A4-size print) 90 pages (30 m) 90 pages (30 m)

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 16 w/SHIFT KEY 16 w/SHIFT KEY

Speed Dial 32 32

Telephone Index Yes Yes

Speaker Phone Monitor Monitor

Handset No Yes

FAX/TEL Switch Yes Yes

Caller ID Yes HOL/SWE/UK/FRA/NOR Yes HOL/SWE/UK/FRA/NOR

Call Waiting Caller ID No No

Distinctive Ringing No No

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

Call Back Message Yes Yes

Journal Report Yes Yes

TX Verification Report Yes Yes

Memory Capacity (pages) 512KB (20 pages) 512KB (20 pages)

ECM Yes Yes

Broadcasting Yes Yes

Quick-Scan Yes Yes

Out-of-Paper Reception Yes Yes

Multi-Copying w/Sorting Yes Yes

Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%)

Multi-Transmission Yes Yes

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 Ready Ready

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 Option (CT70) Option (CT70)

Backup for Page Memory No No

I- 5

Model Name FAX-930/931 MFC-925

Engine Thermal Transfer Thermal Transfer

Color Black(1395)/White(1397/1138) White(1138)

Transmission Speed (sec) 915

Modem Speed (bps) 14,400 9600

Group Compatibility G3 G3

Input/Output Width 8.5"/8.5" 8.5"/8.5"

ADF (pages) 10 10

Recording Paper Loadable 100 sheets 100 sheets

Ribbon Life (A4-size print) 235 pages 235 pages

Starter Ribbon Life (A4-size print) 90 pages (30 m) 90 pages (30 m)

LCD Size 16X1 16X1

On-Screen Programming Yes Yes

Super Fine Yes Yes

Smoothing Yes Yes

Gray Scale (levels) 64 by Dithered 64 by Dithered

One Touch 16 w/SHIFT KEY 16 w/SHIFT KEY

Speed Dial 32 32

Telephone Index Yes Yes

Speaker Phone Full duplex (digital) Monitor

Handset Yes Yes

FAX/TEL Switch Yes Yes

Caller ID Yes HOL/SWE/UK/FRA/NOR Yes HOL/SWE/UK/FRA/NOR

Call Waiting Caller ID No No

Distinctive Ringing No No

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

Call Back Message Yes Yes

Journal Report Yes Yes

TX Verification Report Yes Yes

Memory Capacity (pages) 512KB (20 pages) 512KB (20 pages)

ECM Yes Yes

Broadcasting Yes Yes

Quick-Scan Yes Yes

Out-of-Paper Reception Yes Yes

Multi-Copying w/Sorting Yes Yes

Enlargement/Reduction Ratio Yes (50-150%) Yes (50-150%)

Multi-Transmission Yes Yes

Confidential Mailbox No No

Auto Reduction Yes Yes

Message Manager Yes No

TAD Recording Time 15 minutes No

Fax Forwarding/Paging Yes - both Yes - Only Fax forwarding

Fax Retrieval Yes Yes

Fax-/Voice-on-demand Voice-on-demand No

Fax & Voice Mailbox Yes No

Help List Yes Yes

MFL PRO for Fax Ready Included

Optional Memory No No

Memo Manager No No

Mute Key Yes-music on hold; Green SleevesYes-music on hold; Green Sleeves

Backup for Clock 15 hours 9 hours

Output Tray Option (CT70) Option (CT70)

Backup for Page Memory 6 hours No

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