Brother DCP-9010CN User manual

Confidential
July 2009
SM-FAX113
8CE203
(4)
Color FAX/MFC
SERVICE MANUAL
MODEL: DCP-9010CN/MFC-9010CN
MFC-9120CN/MFC-9125CN
MFC-9320CW/MFC-9325CW
Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.

Confidential
TRADEMARKS
The Brother logo is a registered trademark of Brother Industries, Ltd.
Apple and Macintosh are trademarks of Apple Inc., registered in the United States and other countries.
PCL is either a trademark or a registered trademark of Hewlett-Packard Company in the United States
and other countries.
Windows Vista is either a registered trademark or a trademark of Microsoft Corporation in the United
States and/or other countries.
Microsoft, Windows, Windows Server and Internet Explorer are registered trademarks of Microsoft
Corporation in the United States and/or other countries.
Linux is a registered trademark of Linus Torvalds in the United States and other countries.
PostScript and PostScript3 are either registered trademarks or trademarks of Adobe Systems
Incorporated in the United States and/or other countries.
ENERGY STAR is a U.S. registered mark.
Citrix and MetaFrame are registered trademarks of Citrix Systems, Inc. in the United States.
Intel, Intel Xeon and Pentium are trademarks or registered trademarks of Intel Corporation.
AMD, AMD Athlon, AMD Opteron and combinations thereof, are trademarks of Advanced Micro
Devices, Inc.
PictBridge is a trademark.
Each company whose software title is mentioned in this manual has a Software License Agreement
specific to its proprietary programs.
All other trademarks are the property of their respective owners.
The function comparative table for models as described in this Service manual are shown blow.
© Copyright Brother 2009
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 other product and company names mentioned in this manual
are trademarks or registered trademarks of their respective
holders.
Specifications are subject to change without notice.
Model DCP-
9010CN
MFC-
9010CN
MFC-
9120CN
MFC-
9125CN
MFC-
9320CW
MFC-
9325CW
LAN Wired Wired Wired Wired Wired/
Wireless
Wired/
Wireless
FAX --- --- √√√√
USB host --- --- --- --- √√

iConfidential
PREFACE
This service manual contains basic information required for after-sales service of the Multi-
Function Center (hereinafter referred to as “the machine”). This information is vital to the service
personnel to maintain the high printing quality and performance of the machine.
This service manual covers the DCP-9010CN, MFC-9010CN/9120CN/9125CN/9320CW/
9325CW machines.
This manual consists of the following chapters:
CHAPTER 1: SPECIFICATIONS
Provides specifications of each model, which enables you to make a comparison of the
different models.
CHAPTER 2: THEORY OF OPERATION
Gives an overview of the printing mechanisms as well as the sensors, actuators, and control
electronics. It aids in understanding the basic principles of operations as well as locating
defects for troubleshooting.
CHAPTER 3: ERROR INDICATION AND TROUBLESHOOTING
Details of error messages and codes that the incorporated self-diagnostic function of the
machine will display if any error or malfunction occurs. If any error message appears, refer to
this chapter to find which parts 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.
CHAPTER 4: PERIODICAL MAINTENANCE
Details of consumable parts and periodical maintenance parts. This chapter also covers
procedures for disassembling and assembling periodical maintenance parts.
CHAPTER 5: DISASSEMBLY AND ASSEMBLY
Details of procedures for disassembling and assembling of the machine together with related
notes. The disassembly order flow provided enables you to see at a glance the quickest way
to get to parts involved.
At the start of a disassembly job, you can check the disassembly order flow that guides you
through a shortcut to get to the object parts.
This chapter also covers screw tightening torques and lubrication points to which the specified
lubrications should be applied during assembly jobs.
CHAPTER 6: ADJUSTMENTS AND UPDATING OF SETTINGS,
REQUIRED AFTER PARTS REPLACEMENT

ii Confidential
Details of adjustments and updating of settings, which are required if the main PCB and some
other parts have been replaced. This chapter also covers how to update the firmware.
CHAPTER 7: SERVICE FUNCTIONS
Describes the maintenance mode which is exclusively designed for the purpose of checking
the settings and adjustments using the buttons on the control panel.
This chapter also covers not-disclosed-to-users function menus, which activate settings and
functions or reset the parts life.
CHAPTER 8: CIRCUIT DIAGRAMS & WIRING DIAGRAM
Provides the Circuit Diagrams and Wiring Diagram for the connections of the PCBs.
APPENDIX 1: WORKER SWITCH (WSW)
Describes the functions of the worker switches.
APPENDIX 2: DELETION OF USER SETTING INFORMATION etc.
Provides instructions on how to delete user setting information etc. stored in the machine.
APPENDIX 3: SERIAL NUMBERING SYSTEM
APPENDIX 4: SCREW CATALOGUE
APPENDIX 5: REFERENCES
APPENDIX 6: GLOSSARY
Information in this manual is subject to change due to improvement or redesign of the product.
All relevant information in such cases will be supplied in service information bulletins (Technical
Information).
A thorough understanding of this machine, based on information in this service manual and
service information bulletins, is required for maintaining its print quality performance and for
improving the practical ability to find the cause of problems.

iii Confidential
REGULATION
For Europe and Other Countries
■Radio interference (220 to 240 volt model only)
This machine follows EN55022 (CISPR Publication 22)/Class B.
Before you use this product, make sure that you use the following interface cable.
- A USB cable.
The cable must not be more than 2 meters long.
■EU Directive 2002/96/EC and EN50419
(European Union only)
This equipment is marked with the recycling symbol below. It means that at the end of the life
of the equipment you must dispose of it separately at an appropriate collection point and not
place it in the normal domestic unsorted waste stream. This will benefit the environment for all.

iv Confidential
For USA and Canada
■Federal Communications Commission (FCC) Declaration of Conformity
(For USA)
declares, that the products
complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment
generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
- Consult the dealer or an experienced radio/TV technician for help.
Important
A shielded interface cable should be used to ensure compliance with the limits for a Class B
digital device. Changes or modifications not expressly approved by Brother Industries, Ltd.
could void the user’s authority to operate the equipment.
■Industry Canada Compliance Statement (For Canada)
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
Responsible Party: Brother International Corporation
100 Somerset Corporate Boulevard
P. O . B o x 6 9 11
Bridgewater, NJ 08807-0911
USA
Telephone: [phone]
Product name: Color MFC
DCP-9010CN, MFC-9010CN/9120CN/9125CN/9320CW/9325CW

vConfidential
SAFETY INFORMATION
■Definitions of Warnings, Cautions, Notes and Memos
The following conventions are used in this manual:
Mark Contents
Warnings tell you what to do to prevent possible personal injury.
Electrical Hazard icons alert you to a possible electrical shock.
Hot Surface icons warn you not to touch machine parts that are hot.
Cautions specify procedures you must follow or avoid to prevent
possible damage to the machine or other objects.
Note Notes tell you useful tips when servicing the machine.
Memo Memo tells you bits of knowledge to help understand the machine.

vi Confidential
■Safety Precautions
Listed below are the various kinds of “WARNING” messages included in this manual.
WARNING
There are high voltage electrodes inside the machine. Before you clean the inside of the
machine or replace parts, make sure that you have turned off the power switch and
unplugged the machine from the AC power outlet.
DO NOT handle the plug with wet hands. Doing this might cause an electrical shock.
The fuser unit becomes extremely hot during operation. Wait until it has cooled down
sufficiently before replacing consumable items. DO NOT remove or damage the caution
label located on or around the fuser.

vii Confidential
WARNING
To prevent injuries, be careful not to put your hands on the edge of the machine under the
document cover as shown in the illustration.
To prevent injuries, be careful not to put your fingers in the areas shown in the illustrations.

viii Confidential
WARNING
DO NOT use flammable substances, any type of spray or any organic solvent/liquids
contains alcohol or ammonia to clean the inside or outside of the machine. Doing this may
cause a fire or electrical shock.
If the machine becomes hot, blows smoke, or generates obscure odor, immediately turn off
the power switch and unplug the machine from the AC power outlet.
If metal objects, water or other liquids get inside the machine, immediately turn off the
power switch and unplug the machine from the AC power outlet.
This machine is heavy and weighs approximately 22.9 kg (50.5 lb). To prevent injuries
when moving or lifting this machine, make sure to use at least two people. Be careful not to
pinch your fingers when you set the machine back down.
CAUTION
Lightning and power surges can damage this product! We recommend that you use a
quality surge protection device on the AC power line, or unplug the machine during a
lightning storm.
Violently closing the top cover without mounting the toner cartridge and the drum unit can
damage this product.

Confidential
CHAPTER 1
SPECIFICATIONS

Confidential
CHAPTER 1
SPECIFICATIONS
This chapter lists the specifications of each model, which enables you to make a comparison of
different models.
CONTENTS
1. COMPONENTS ..........................................................................................1-1
2. SPECIFICATIONS LIST .............................................................................1-2
2.1 General....................................................................................................................... 1-2
2.2 Network Connectivity................................................................................................ 1-11
2.3 Service Information................................................................................................... 1-17
2.4 Consumables............................................................................................................ 1-18
2.5 Paper ........................................................................................................................ 1-19
2.5.1 Paper handling ................................................................................................ 1-19
2.5.2 Media specifications ........................................................................................ 1-19
2.5.3 Type and size of paper .................................................................................... 1-20
2.6 Printable Area........................................................................................................... 1-21
2.7 Print Speeds with Various Settings........................................................................... 1-29
2.8 Telephone ................................................................................................................. 1-30
2.9 FAX........................................................................................................................... 1-32
2.10 List/Report .............................................................................................................. 1-36
2.11 Copy........................................................................................................................ 1-37
2.12 Scanner .................................................................................................................. 1-38
2.13 USB Direct Interface............................................................................................... 1-40

1-1 Confidential
1. COMPONENTS
Fig. 1-1
LED ASSY
LVPS unit
Fuser unit
Paper eject guide ASSY
Side cover R ASSY
High-voltage
HVPS control
Toner LED
Side frame R
Paper feed unit
Waste toner sensor
Fuser cover
Back cover
Fuser eject
drive ASSY
Belt drive ASSY
Main PCB ASSY
Engine PCB ASSY
Access cover
Side cover L ASSY Drum develop
Front cover ASSY
Toner/New sensor
ADF unit
Side frame L
Registration sensor
Paper tray
Top cover arm R
Top cover arm L
LED head control
PCB ASSY
drive unit
PCB ASSY
holder ASSY
Main fan ASSY
LV fan ASSY
PCB ASSY
power supply
PCB ASSY
Document scanner unit Panel unit
Joint cover sub ASSY
Front cover
NCU PCB ASSY
Speaker unit
top ASSY
PCB ASSY
USB direct interface
relay PCB ASSY
holder ASSY

1-2 Confidential
2. SPECIFICATIONS LIST
2.1 General
*1 The time may change if the machine is performing adjustment of color density or
adjustment of color registration.
Specifications are subject to change without notice.
Model DCP9010CN MFC9010CN MFC9120CN MFC9320CW
Print method Electrophotographic LED printer (Single-pass)
Resolution
600 (main scanning) x 600
(sub scanning) dpi, 2,400 dpi
(600 (main scanning) x 2,400
(sub scanning))
Windows Server®2008, Windows Vista®, Windows Server®
2003 x64 Edition, Windows®XP Professional x64 Edition,
Windows Server®2003, Windows®XP Home
Edition/Professional, Windows®2000, Mac OS®X 10.3.9 or
greater
Print mode Normal printing mode
Economy printing mode (Toner saving mode)
Print speed One side Monochrome/Full Color:
Up to 16/16 ppm (A4 size), Up to 17/17 ppm (Letter size)
* When loading A4 or Letter-size paper from the paper tray.
Duplex N/A
Warm-up time From Sleep Mode: Less than 27 seconds
From Power OFF →ON: Less than 37 second
* With standard 64 MB RAM, 23 °C (73.4 °F).
First print time *1 Monochrome: Less than 15 seconds
Full Color: Less than 16 seconds
CPU 300 MHz
Memory Standard 64 MB
Option 1 DIMM slot; expandable up to 576 MB
Interface Hi-Speed USB 2.0,
Ethernet 10/100 BASE-TX
External
TAD,
Hi-Speed
USB 2.0,
Ethernet
10/100
BASE-TX
External
TAD,
Hi-Speed
USB 2.0,
USB Host,
Ethernet
10/100
BASE-TX,
Wireless
Power
consumption
Printing Average 480 W at 25 °C (77 °F)
Ready Average 75 W at 25 °C (77 °F)
Sleep
Average 10 W at 25 °C (77 °F) Average 11
W at 25 °C
(77 °F)
Average 12
W at 25 °C
(77 °F)
Note:
Print speed varies depending on the paper size or media type. For details, refer to
“2.7 Print Speeds with Various Settings” in this chapter.

1-3 Confidential
*2 The time may change if the machine is performing adjustment of color density or
adjustment of color registration.
Specifications are subject to change without notice.
Model MFC9125CN MFC9325CW
Print method Electrophotographic LED printer (Single-pass)
Resolution
600 (main scanning) x 600
(sub scanning) dpi, 2,400 dpi
(600 (main scanning) x 2,400
(sub scanning))
Windows Server®2008, Windows Vista®, Windows Server®
2003 x64 Edition, Windows®XP Professional x64 Edition,
Windows Server®2003, Windows®XP Home Edition/
Professional, Windows®7, Windows Server®2008 R2,
Mac OS®X 10.4.11, 10.5.x, 10.6.x
Print mode Normal printing mode
Economy printing mode (Toner saving mode)
Print speed One side Monochrome/Full Color:
Up to 18/18 ppm (A4 size), Up to 19/19 ppm (Letter size)
* When loading A4 or Letter-size paper from the paper tray.
Duplex N/A
Warm-up time From Sleep Mode: Less than 27 seconds
From Power OFF →ON: Less than 37 second
* With standard 64 MB RAM, 23 °C (73.4 °F).
First print time *2 Monochrome: Less than 15 seconds
Full Color: Less than 16 seconds
CPU 300 MHz
Memory Standard 64 MB
Option 1 DIMM slot; expandable up to 576 MB
Interface External TAD,
Hi-Speed USB 2.0,
Ethernet 10/100 BASE-TX
External TAD, Hi-Speed USB
2.0, USB Host, Ethernet 10/
100 BASE-TX, Wireless
Power
consumption
Printing Average 480 W at 25 °C (77 °F)
Ready Average 75 W at 25 °C (77 °F)
Sleep Average 11
W at 25 °C
(77 °F)
Average 12
W at 25 °C
(77 °F)
Note:
Print speed varies depending on the paper size or media type. For details, refer to
“2.7 Print Speeds with Various Settings” in this chapter.

1-4 Confidential
Specifications are subject to change without notice.
Model DCP9010CN MFC9010CN MFC9120CN MFC9320CW
Noise level Sound
pressure
Printing: 53 dB (A)
Ready: 30 dB (A)
Sound
power
Printing: LWAd = 6.5 Bell (A)
Ready: LWAd = 4.8 Bell (A)
Environment Temperature Operating: 10 to 32.5 °C (50 to 90.5 °F)
Non operating: 0 to 40 °C (32 to 104 °F)
Storage: -20 to 40 °C (-4 to 104 °F)
Humidity Operating: 20 to 80 % (non condensing)
Storage: 10 to 90 % (non condensing)
Dimensions
(W × D × H)
With carton 743 x 592 x 575 mm (29.3 x 23.3 x 22.6 inch)
Without carton 428 x 491 x 401 mm (16.9 x 19.3 x 15.8 inch)
Weights
Approximately 22.7 kg (50.0 lb)
including the drum unit and
toner cartridge
Approximately 22.9 kg (50.5 lb)
including the drum unit and
toner cartridge
LCD Size 16 characters x 2 lines
LCD dimension (W x L) 5 x 1.05 cm (1.85 x 0.43 inch)
LCD backlight Yes (Green)
LED Error (Orange), Data (Green),
Mode key (Fax, Copy, Scan): Blue (FAX model only)
Security function lock N/A Yes
Model MFC9125CN MFC9325CW
Noise level Sound
pressure
Printing: 53 dB (A)
Ready: 30 dB (A)
Sound
power
Printing: LWAd = 6.5 Bell (A)
Ready: LWAd = 4.8 Bell (A)
Environment Temperature Operating: 10 to 32.5 °C (50 to 90.5 °F)
Non operating: 0 to 40 °C (32 to 104 °F)
Storage: -20 to 40 °C (-4 to 104 °F)
Humidity Operating: 20 to 80 % (non condensing)
Storage: 10 to 90 % (non condensing)
Dimensions
(W × D × H)
With carton 743 x 592 x 575 mm (29.3 x 23.3 x 22.6 inch)
Without carton 428 x 491 x 401 mm (16.9 x 19.3 x 15.8 inch)
Weights
Approximately 22.9 kg (50.5 lb)
including the drum unit and toner cartridge
LCD Size 16 characters x 2 lines
LCD dimension (W x L) 5 x 1.05 cm (1.85 x 0.43 inch)
LCD backlight Yes (Green)
LED Error (Orange), Data (Green),
Mode key (Fax, Copy, Scan): Blue (FAX model only)
Security function lock Yes

1-5 Confidential
<PC software>
*3 Download from http://solutions.brother.com/
<Viewer>
*4 PaperPort 11 SE supports Microsoft®Windows Vista ®
or Windows®XP (SP 2 or higher) or
Windows®2000 (SP4 or higher) only
<PC-Fax>*5
*5 Not available for Color Fax
Specifications are subject to change without notice.
Model DCP9010CN MFC9010CN MFC9120CN MFC9320CW
Printer driver Windows®Host-Based Driver for Windows Server®2008, Windows
Vista®, Windows Server®2003 x64 Edition, Windows®XP
Professional x64 Edition, Windows Server®2003, Windows®
XP Home Edition/Professional, Windows®2000 Professional
BR-Script 3 (PPD file for Windows Server
®
2008, Windows
Vista
®
, Windows Server
®
2003 x64 Edition, Windows
®
XP
Professional x64 Edition, Windows Server
®
2003, Windows
®
XP Home Edition/Professional, Windows
®
2000 Professional)
Macintosh®Macintosh Printer Driver for Mac OS®X 10.3.9 or greater
BR-Script 3 (PPD file for Mac OS®X 10.3.9 or greater)
Linux*3 Linux printer driver for CUPS printing system (x86, x64
environment)
Linux printer driver for LPD/LPRng printing system (x86, x64
environment)
Model DCP9010CN MFC9010CN MFC9120CN MFC9320CW
Viewer Windows®PaperPort 11 SE*4, Page Manager 7 (China)
Macintosh®Page Manager 7
Linux N/A
Model DCP9010CN MFC9010CN MFC9120CN MFC9320CW
Windows®Send N/A Yes (FaxShare Software by
Brother)
Receive N/A Yes (for Windows Vista
®
/
Windows®XP/ Windows®
2000)
Macintosh®Send N/A Yes (FaxShare Software by
Brother)
Receive N/A
Linux Send N/A Yes (LPR/CUPS PC-FAX
Send Driver)
Receive N/A

1-6 Confidential
<PC software>
*6 Download from http://solutions.brother.com/
<Viewer>
*7 PaperPort 11 SE supports Microsoft®Windows Vista ®
or Windows®XP (SP 2 or higher) or
Windows®2000 (SP4 or higher) only
<PC-Fax>*8
*8 Not available for Color Fax
Specifications are subject to change without notice.
Model MFC9125CN MFC9325CW
Printer driver Windows®Host-Based Driver for Windows®XP, Windows®XP
Professional x64 Edition, Windows Vista®, Windows®7,
Windows Server®2003, Windows Server®2003 x64 Edition,
Windows Server®2008, Windows Server®2008 R2 Edition
BR-Script3 (PPD file) for Windows®XP, Windows®XP
Professional x64 Edition, Windows Vista®, Windows®7,
Windows Server®2003, Windows Server®2003 x64 Edition,
Windows Server®2008, Windows Server®2008 R2 Edition
Macintosh®Macintosh Printer Driver for Mac OS®X 10.4.11, 10.5.x,
10.6.x
BR-Script 3 (PPD file for Mac OS®X 10.4.11, 10.5.x, 10.6.x
Linux*6 Linux printer driver for CUPS printing system (x86, x64
environment)
Linux printer driver for LPD/LPRng printing system (x86, x64
environment)
Model MFC9125CN MFC9325CW
Viewer Windows®PaperPort 11 SE*7
Macintosh®Page Manager 9
Linux N/A
Model MFC9125CN MFC9325CW
Windows®Send Yes (FaxShare Software by Brother)
Receive Yes (for Windows Vista
®
/Windows®XP/ Windows®2007)
Macintosh®Send Yes (FaxShare Software by Brother)
Receive N/A
Linux Send Yes (LPR/CUPS PC-FAX Send Driver)
Receive N/A

1-7 Confidential
<Configuration tool>
<Network utility>
<Direct Print feature>
Specifications are subject to change without notice.
Model DCP9010CN MFC9010CN MFC9120CN MFC9320CW
Control center Windows®Yes (Control Center 3)
Macintosh®Mac OS®X 10.3.9 or grater (Control Center 2)
Linux N/A
Remote setup Windows®N/A Yes
Macintosh®N/A Yes (Mac OS®X only)
Linux N/A
Model DCP9010CN MFC9010CN MFC9120CN MFC9320CW
Windows®
BRAdmin
Light,
Web Based
Management,
BRAdmin
Professional 3,
Web BRAdmin
BRAdmin Light, Web Based Management,
BRAdmin Professional 3, Web BRAdmin,
Network Remote Setup
Macintosh®
BRAdmin
Light,
Web Based
Management
BRAdmin Light, Web Based Management,
BRAdmin Professional 3
Linux Web Base Management
Model DCP9010CN MFC9010CN MFC9120CN MFC9320CW
Direct Print N/A PDF version
1.7, JPEG,
Exif+JPEG,
PRN
(created by
own printer
driver), TIFF
(scanned by
Brother
models), XPS
version 1.0

1-8 Confidential
<Configuration tool>
<Network utility>
<Direct Print feature>
Specifications are subject to change without notice.
Model MFC9125CN MFC9325CW
Control center Windows®Yes (Control Center 3)
Macintosh®Mac OS®X 10.4.11, 10.5.x, 10.6.x (Control Center 2)
Linux N/A
Remote setup Windows®Yes
Macintosh®Yes (Mac OS®X only)
Linux N/A
Model MFC9125CN MFC9325CW
Windows®BRAdmin Light, Web Based Management, BRAdmin
Professional 3, Web BRAdmin, Network Remote Setup
Macintosh®BRAdmin Light, Web Based Management,
Network Remote Setup
Linux Web Base Management
Model MFC9125CN MFC9325CW
Direct Print N/A PDF version 1.7, JPEG,
Exif+JPEG, PRN
(created by own printer
driver), TIFF (scanned by
Brother
models), XPS version 1.0