Brother DCP-375CW Bedienungsanleitung

Confidential

Inkjet DCP/MFC

SERVICE MANUAL

MODELS: DCP375CW/395CN

MFC255CW/295CN

MFC495CW/795CW

DCPJ125/J315W

DCPJ515W/J715W

MFCJ220/J265W/J270W

MFCJ410/J410W/J415W

MFCJ615W/J630W

DCPJ140W

March 2010

SM-FAX112(4)

8CAJ/8CAK/8CAP

Read this manual thoroughly before maintenance work.

Keep this manual in a convenient place for quick and easy reference at all times.

Confidential

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.

Trademarks

The Brother logo is a registered trademark of Brother Industries, Ltd.

Brother is a registered trademark of Brother Industries, Ltd.

Multi-Function Link is a registered trademark of Brother International Corporation.

Windows Vista is either a registered trademark or a trademark of Microsoft Corporation in the United

States and other countries. Microsoft, Windows, Windows Server, Outlook and Internet Explorer are

either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other

countries.

Apple, Macintosh, Mac OS and Safari are trademarks of Apple Inc., registered in the United States and

other countries.

Adobe, Flash, Illustrator and Photoshop are either registered trademarks or trademarks of Adobe

Systems Incorporated in the United States and/or other countries.

Macintosh and TrueType are registered trademarks of Apple Inc.

Nuance, the Nuance logo, PaperPort and ScanSoft are trademarks or registered trademarks of Nuance

Communications, Inc. or its affiliates in the United States and/or other countries.

Presto! PageManager is a registered trademark of NewSoft Technology Corporation.

Microdrive is a trademark of International Business Machines Corporation.

CompactFlash is a registered trademark of SanDisk Corporation.

Memory Stick is a registered trademark of Sony Corporation.

SanDisk is a licensee of the SD and miniSD trademarks.

xD-Picture Card is a trademark of Fujifilm Co. Ltd., Toshiba Corporation and Olympus Optical Co. Ltd.

PictBridge is a trademark.

Memory Stick Pro, Memory Stick Pro Duo, Memory Stick Duo and MagicGate are trademarks of Sony

Corporation.

BROADCOM, SecureEasySetup and the SecureEasySetup logo are trademarks or registered

trademarks of Broadcom Corporation in the United States and/or other countries.

AOSS is a trademark of Buffalo Inc.

PowerPC is a registered trademark of IBM in the United States and/or other countries.

WPA, WPA2, Wi-Fi Protected Access and Wi-Fi Protected Setup are either trademarks or registered

trademarks of Wi-Fi Alliance in the United States and/or other countries.

FaceFilter Studio is a trademark of Reallusion, Inc.

AMD is a trademark of Advanced Micro Devices, Inc.

UNIX is a registered trademark of The Open Group in the United States and other countries.

Linux is the registered trademark of Linus Torvalds in the U.S. and other countries.

Corel and CorelDraw are trademarks or registered trademarks of Corel Corporation and/or its

subsidiaries in Canada, the United States and/or other countries.

Each company whose software title is mentioned in this manual has a Software License Agreement

specific to its proprietary programs.

All other brand and product names mentioned in this manual are trademarks or registered

trademarks of their respective companies.

iConfidential

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 equipment

function, repair the equipment 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.

The table below shows the functional comparison between the models covered by this manual.

Model DCP375CW DCP395CN MFC255CW MFC295CN MFC495CW MFC795CW

RAM 32 MB 40 MB 32 MB 40 MB 48 MB

LCD Monochrome LCD

(16 charas x 1 line) 3.3-inch wide color Monochrome LCD

(16 charas x 1 line) 3.3-inch wide color 5.0-inch wide color

Touch panel --- --- --- --- --- √

Wired LAN √√--- √√√

Wireless LAN

(WLAN PCB) √--- √--- √√

Handset

(Hook switch and

its PCB) --- --- --- --- --- √

Speaker --- --- √√√√

Backup battery --- --- --- --- --- √

TAD (Microphone) --- --- --- --- --- √

PhotoCapture

Center √

(w/o CF) √√

PictBridge/

USB flash memory

drive --- √--- √√√

ADF --- --- --- √√√

Photo tray --- √--- --- √√

FAX --- --- √√√√

Model DCPJ125 DCPJ315W DCPJ515CW DCPJ715CW DCPJ140W

RAM 32 MB 40 MB 32 MB

LCD 1.9-inch STN color LCD 3.3-inch TFT color LCD Monochrome LCD

(16 charas x 1 line)

Touch panel −−−−−

Wired LAN −−−√−

Wireless LAN

(WLAN PCB) −√√√√

Handset

(Hook switch and its

PCB)

−−−−−

Speaker −−−−−

Backup battery −−−−−

TAD (Microphone) −−−−−

PhotoCapture Center √√√√−

PictBridge/

USB flash memory

drive −−−√−

ADF −−−√−

Photo tray -- −√√−

FAX −−−−−

ii Confidential

This manual describes the models and their versions destined for major countries. The specifications and

functions are subject to change depending upon each destination.

Model MFCJ220 MFCJ265W MFCJ270W MFCJ410 MFCJ410W MFCJ415W MFCJ615W MFCJ630W

RAM 32 MB 40 MB

LCD 1.9-inch STN color LCD 3.3-inch TFT color LCD

Touch panel −−−−−−−−

Wired LAN −−−−−−√√

Wireless LAN

(WLAN PCB) −√√−√√√√

Handset

(Hook switch and its

PCB) −−−−−−−−

Speaker √√√√√√√√

Backup battery −−−−−−−−

TAD (Microphone) −−−−−−−−

PhotoCapture Center √√√√√√√√

PictBridge/

USB flash memory

drive −−−−−−√√

ADF −−−√√√√√

Photo tray −−−−−−√√

FAX √√√√√√√√

iii Confidential

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 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.

CHAPTER 5 HANDLING DATA HELD IN THE MACHINE PRIOR TO

REPAIR

Describes how to handle data held in the machine to be repaired.

At the user site, if the machine cannot print FAX data received and left in the machine due to the

printing mechanism defective, the service personnel should instruct the end user to follow the

transfer procedure given in this chapter to transfer the FAX data to another machine before

sending the machine for repair.

At the service site, the service personnel should back up the machine information and user

setting information held in the machine into an external memory for restoration after repair,

using the backup procedure given in this chapter.

CHAPTER 6 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 the disassembly order flow that guides you through

a shortcut to the target components.

This chapter also covers screw tightening torques and lubrication points to which the specified

lubricants should be applied during reassembly jobs.

iv Confidential

CHAPTER 7 ADJUSTMENTS AND UPDATING OF SETTINGS,

REQUIRED AFTER PARTS REPLACEMENT

Details adjustments and updating of settings, which are required if the head/carriage unit, main

PCB and some other parts have been replaced.

CHAPTER 8 CLEANING

Provides cleaning procedures not covered by the User's Guide. Before starting any repair work,

clean the machine as it may solve the problem concerned.

CHAPTER 9 MAINTENANCE MODE

Describes the maintenance mode which is exclusively designed for the purpose of checks,

settings and adjustments of the machine using the keys on the control panel.

In the maintenance mode, you can update memory (EEPROM: electrically erasable

programmable read-only memory) contents for optimizing the drive conditions of the head/

carriage unit or the paper feed roller and paper ejection roller in the engine unit, if those units

have been replaced, or for setting the CIS scanner area, for example. You can also customize

the EEPROM 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).

Appendix 1 Reading Labels

Shows the location of labels put on some parts and describes the coding information for serial

number and head property data.

Appendix 2 Firmware Installation

Provides instructions on how to change firmware stored in the flash ROM on the main PCB or

load firmware to a new main PCB from the host PC.

Appendix 3 EEPROM Customizing Codes

Provides instructions on how to set up the EEPROM customizing codes for the various

preferences exclusively designed for each destination. The specified customizing code is stored

in the EEPROM mounted on the main PCB. If the main PCB is replaced, therefore, you need to

set up the proper customizing code with the machine in the maintenance mode.

Customizing codes customize firmware for individual models, enabling the common firmware

to be used for various models. A list of EEPROM customizing codes comes 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 Diagrams

Provides the wiring diagrams that help you understand the connections between PCBs.

vConfidential

Appendix 6 Circuit Diagrams

Provides the circuit diagrams of the MJ PCB and power supply PCB.

Appendix 7 Deletion of User Setting Information

Provides instructions on how to delete user setting info recorded in the machine.

vi Confidential

SAFETY PRECAUTIONS

Symbols used in the documentation

vii Confidential

viii Confidential

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