Brother FAX 4750 User manual

FACSIMILE EQUIPMENT
SERVICE MANUAL
MODEL: FAX[phone]
MFC8300/8600/8700
FAX8350P/8750P
MFC9650

© Copyright Brother 2000
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 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.

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 1999 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. 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.
w/o 2nd cassette w/ 2nd cassette
Weight: Machine proper 10.5 kg 14.0 kg
Machine (incl. drum unit & toner cartridge) 12.0 kg 15.5 kg
In package 16.5 kg 22.0 kg
1.2 Components
The equipment consists of the following major components:
*1 Provided on those models equipped
with a handset.
*2 Provided on those models without
handset.

FACSIMILE EQUIPMENT
PARTS REFERENCE LIST
MODEL: FAX4750 / FAX5750
MFC8300 / MFC8600 /MFC8700
(For U.S.A / Canada /
Australia / New Zealand /
Asia / Gulf / Korea)

FACSIMILE EQUIPMENT
PARTS REFERENCE LIST
MODEL: FAX8350P / 8750P
MFC9650
(For Germany / United Kingdom / France /
Norway / Belgium / Netherlands /
Switzerland / Denmark / Spain / Austria/
Italy / Sweden / Euro Generic)