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Brother MFC990CW, MFC790CW, MFC490CW, MFC290C, MFC250C, DCP585CW, DCP385C, DCP185C, DCP165C, DCP145C, Service Manual
This manual is in the PDF format and have detailed Diagrams, pictures and full procedures to diagnose and repair your copier.
You can print, zoom or read any diagram, picture or page from this Service Manual. Every chapter on this manual is fully detailed and contain all the simulation codes, trouble codes, maintenance procedures, reset procedures, diagnose procedures of Brother MFC990CW, Brother MFC790CW, Brother MFC490CW, Brother MFC290C, Brother MFC250C, Brother DCP585CW, Brother DCP385C, Brother DCP185C, Brother DCP165C, Brother DCP145C photocopier. You can find easily everything what do you need.
To see what contain, please read table of contents:
CHAPTER 1. PARTS NAMES AND 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.
1.1 OUTLINE
1.2 CONTROL PANEL
1.3 COMBINATIONS OF TWO KEYS FOR SPECIAL FUNCTIONS
1.4 COMPONENTS
CHAPTER 2. SPECIFICATIONS
This chapter lists the specifications of each model, which enables you to make a comparison of different models.
2.1 GENERAL
2.1.1 Media Specifications
2.1.2 Paper Handling
2.1.3 LCD/LED/Panel
2.1.4 Memory
2.1.5 Security
2.1.6 Others
2.1.7 Interface
2.2 TELEPHONE
2.2.1 Volume
2.2.2 Quick/Auto Dials
2.2.3 Tel Service
2.2.4 Message Center
2.2.5 List/Report
2.3 FAX
2.3.1 Sending
2.3.2 Receiving
2.3.3 PC FAX
2.4 PRINTER
2.5 COPY
2.6 SCANNER
2.7 PHOTO CAPTURE
2.7.1 PictBridge
2.7.2 Bluetooth
2.8 SOFTWARE
2.9 NETWORK
2.9.1 Wired
2.9.2 Wireless
2.10 SUPPLIES/OPTIONS
2.11 SERVICE INFORMATION
2.12 PAPER
2.12.1 Paper Specifications
2.12.2 Printable Area
Language List
ITU-T Test Chart #1
Brother Chart
CHAPTER 3. THEORY OF OPERATION
This chapter 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.
3.1 OVERVIEW
3.2 MECHANICAL COMPONENTS
3.2.1 Scanner Mechanism
3.2.2 Printing Mechanism
3.2.2.1 Ink supply and ink jet mechanism
[ 1 ] Overview
[ 2 ] Features
[ 3 ] Head/carriage unit
[ 4 ] Ink cartridges
[ 5 ] Ink refill assembly
[ 6 ] Ink supply tubes
3.2.2.2 Head maintenance mechanism
[ 1 ] Overview
[ 2 ] Maintenance unit components
[ 3 ] Mechanisms constituting the head maintenance mechanism
[ 4 ] Power transmission route to the head maintenance mechanism and motor rotational direction
[ 5 ] Purge types, ink usage, purge counts, and purge codes
[ 6 ] Ink cartridge capacities
3.2.2.3 Carriage drive mechanism
3.2.2.4 Paper pulling-in, registration, feeding and ejecting mechanisms
3.2.3 Sensors and Actuators
3.3 CONTROL ELECTRONICS
3.3.1 Components
CHAPTER 4. ERROR INDICATION AND TROUBLESHOOTING
This chapter 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.
4.1 ERROR INDICATION
4.1.1 Equipment Errors
[ 1 ] Error messages appearing on the LCD
[ 2 ] Error codes contained in "MACHINE ERROR X X" messages
4.1.2 Communications Errors (For MFC only)
4.2 TROUBLESHOOTING
4.2.1 Introduction
4.2.2 Precautions
4.2.3 Checking Prior to Troubleshooting
4.2.4 Troubleshooting Based on Problem Type
[ 1 ] Control panel and LCD problems
[ 2 ] FAX/Telephone problems (For MFC only)
[ 3 ] Communications problems (For MFC only)
[ 4 ] Paper/document feeding problems
[ 5 ] Print-image problems
[ 6 ] PC-driven printing problems
[ 7 ] Printing from memory cards--Compact Flash*1, Memory Stick, SD Memory Card, xD-Picture Card (For models with PhotoCapture Center*2) and USB flash memory drive
[ 8 ] Wireless LAN (WLAN)*2
[ 9 ] Others
4.2.5 Problems Encountered Frequently in the Past
[ 1 ] Paper jams
[ 2 ] Ink-related problems
[ 3 ] Auto document feeder (ADF) malfunction (For models with ADF)
4.2.6 Possible Component Defects and Resulting Problems
[ 1 ] ADF mechanism (For models with ADF)
[ 2 ] Scanner mechanism
[ 3 ] Head/carriage unit drive and purge mechanisms
[ 4 ] Print head mechanism
[ 5 ] Sheet feeder (SF) mechanism
[ 6 ] Paper feeding mechanism
[ 7 ] Speaker
[ 8 ] Control panel
[ 9 ] PCBs
[ 10 ] Adjustments/data in the memories
CHAPTER 5. HANDLING DATA HELD IN THE MACHINE PRIOR TO REPAIR
This chapter 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.
5.1 AT THE USER SITE
5.1.1 Transferring Received FAX Data
5.2 AT THE SERVICE SITE
5.2.1 Backing up Machine Information
CHAPTER 6. DISASSEMBLY/REASSEMBLY AND LUBRICATION
This chapter 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.
6.1 DISASSEMBLY/REASSEMBLY
Safety Precautions
Tightening Torque
Preparation
How to Access the Target Component
Disassembly Flowchart
6.1.1 Jam Clear Cover
6.1.2 Scanner Cover (Scanner Unit)
6.1.3 ADF & Document Cover ASSY (Document Cover) (for models with ADF), Document Cover (for models without ADF)
6.1.4 Disassembly of ADF & Document Cover ASSY (for models with ADF)
6.1.5 Control Panel ASSY
6.1.6 Disassembly of Control Panel ASSY
6.1.7 Charge Stand ASSY (for models with cordless handset)
6.1.8 Backup Battery (for models with backup battery), Speaker (for models with speaker), Upper Cover, and Encoder Guard Film
6.1.9 Antenna & Cordless PCB ASSY (for models with cordless handsets)
6.1.10 Ink Cartridge Cover, Inner Media Module Cover, Front Cover, and WLAN PCB (for WLAN-enabled models)
6.1.11 Main PCB
6.1.12 MJ/PS Shield Unit (MJ PCB* and Power Supply PCB)
6.1.13 Hook Switch PCB (for models with handset)
6.1.14 Head/Carriage Unit and Ink Refill ASSY
6.1.15 Ink Absorber Box, Ink Absorber Felts, and PF Encoder Disk
6.1.16 Engine Unit and Flushing Box
6.1.17 Components on the Engine Unit (Earth spring, Maintenance unit, ASF motor*, Carriage motor, Star wheel holder, Paper ejection roller,
Platen, Inner chute ASSY, Registration sensor actuator, PF encoder/registration sensor harness unit, Paper pull-in rollers R and L, ASF gear shaft outer, and PE actuator)
6.1.18 Bank ASSY and Base Pad on the Paper Tray ASSY
6.1.19 Routing of the Harnesses, Flat Cables, and Ink Supply Tubes
6.2 LUBRICATION
CHAPTER 7. ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED AFTER PARTS REPLACEMENT
This chapter details adjustments and updating of settings, which are required if the head/carriage unit, main PCB and some other parts have been replaced.
7.1 PREPARATION
7.1.1 Requirements
7.1.2 Installing the Maintenance USB Printer Driver
7.2 IF YOU REPLACE THE HEAD/CARRIAGE UNIT OR ENGINE UNIT
[ 1 ] Update the head property information stored in the EEPROM on the main PCB
[ 2 ] Clean the new head/carriage unit (Function code 76)
[ 3 ] Print out a test pattern (Function code 09)
[ 4 ] Correct the positioning error of the head/carriage unit
[ 5 ] Update the paper feeding correction value (Function code 58)
[ 6 ] Align vertical print lines (Function code 65)
[ 7 ] Adjust margins in borderless printing (Function code 66)
[ 8 ] Print out a total check pattern
[ 9 ] Switch back to standby
[ 10 ] Replace the ink cartridges with the protective part
7.3 IF YOU REPLACE THE MAIN PCB
[ 1 ] Load update programs/data
[ 2 ] Initialize the EEPROM on the main PCB (Function code 01)
[ 3 ] Customize the EEPROM on the main PCB (Function code 74)
[ 4 ] Specify the CIS type (Function code 59)
[ 5 ] Register base ID code to the main PCB and base unit (cordless PCB) (For models with cordless handsets)
[ 6 ] Check the control panel PCB for normal operation (Function code 13)
[ 7 ] Check the sensor operation (Function code 32)
[ 8 ] Acquire white level data and set CIS scanner area (Function code 55)
[ 9 ] Set an ID code and update the head property information
[ 10 ] Back up machine information (Function code 46)
[ 11 ] Update the paper feeding correction value (Function code 58)
[ 12 ] Align vertical print lines (Function code 65)
[ 13 ] Adjust margins in borderless printing (Function code 66)
[ 14 ] Print out an ADF copy chart and make a copy of that chart in ADF scanning (For models with ADF)
[ 15 ] Check LCD operation and specify the LCD type (Function code 12)
[ 16 ] Adjust the touch panel (Function code 78) (For models with touch panel)
[ 17 ] Get EEPROM data (incl. MAC address) from the WLAN PCB (For wireless LAN-enabled models)
[ 18 ] Switch back to standby
[ 19 ] Register cordless handsets (For models with cordless handsets)
7.4 IF YOU REPLACE THE ADF & DOCUMENT COVER ASSY OR ADF-RELATED PARTS (FOR MODELS WITH ADF)
[ 1 ] Check the "Total Quality Check Pattern"
[ 2 ] Print out an ADF copy chart and make a copy of that chart in ADF scanning
7.5 IF YOU REPLACE THE INK ABSORBER BOX OR FLUSHING BOX
[ 1 ] Reset each of the purge and flushing counters
7.6 IF YOU REPLACE THE CONTROL PANEL ASSY OR CONTROL PANEL PCB
[ 1 ] Check LCD operation and specify the LCD type (Function code 12)
[ 2 ] Check the operation of the control panel PCB (Function code 13)
[ 3 ] Adjust the touch panel (Function code 78) (For models with touch panel)
7.7 IF YOU REPLACE THE FB UNIT* OR SCANNER COVER (SCANNER UNIT)
[ 1 ] Load update programs/data
[ 2 ] Specify the CIS type (Function code 59)
[ 3 ] Acquire white level data and set CIS scanner area (Function code 55)
[ 4 ] Check the "Total Quality Check Pattern" (For models with ADF)
[ 5 ] Print out an ADF copy chart and make a copy of that chart in ADF scanning (For models with ADF)
7.8 IF YOU REPLACE THE WLAN PCB (FOR WIRELESS LAN-ENABLED MODELS)
[ 1 ] Transfer EEPROM data (incl. MAC address) to the main PCB
7.9 IF YOU REPLACE THE CORDLESS PCB (FOR MODELS WITH CORDLESS HANDSETS)
[ 1 ] Register base ID code to the main PCB and base unit (cordless PCB)
[ 2 ] Register cordless handsets
7.10 IF YOU REPLACE THE CORDLESS HANDSETS (FOR MODELS WITH CORDLESS HANDSETS)
[ 1 ] Deregister and register cordless handsets
CHAPTER 8. CLEANING
This chapter 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.
For the cleaning procedures of the head/carriage unit, scanner unit, and platen, refer to the User's Guide.
8.1 CLEANING THE EXTERNAL AND INTERNAL SURFACE OF THE MACHINE
8.2 CLEANING THE MAINTENANCE UNIT
CHAPTER 9. MAINTENANCE MODE
This chapter 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 operations for the maintenance mode in models with touch panel, keys of the software keypad
displayed on the touch panel are also used. Only when a key needs to be limited to the one on the control
panel or on the touch panel, this chapter describes a key, for example, as "the Copy key on the control
panel" or "the Scan key on the touch panel." If a description says just "the 5 key," you can use either the 5
key of the numerical keypad on the control panel or the 5 key of the software keypad on the touch 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).
For models with a cordless handset, the maintenance functions dedicated to cordless handsets are
provided.
NOTE: This chapter includes descriptions of facsimile functions which a DCP does not support.
9.1 MAINTENANCE MODE FOR THE MACHINE
9.1.1 Entry into the Machine Maintenance Mode
9.1.2 List of Machine Maintenance-mode Functions
9.1.3 User-access to the Machine Maintenance Mode
9.1.4 Detailed Description of Functions in the Machine Maintenance Mode
9.1.4.1 EEPROM Parameter Initialization (Function code 01, 91)
9.1.4.2 Printout of Scanning Compensation Data (Function code 05)
9.1.4.3 ADF Performance Test (Function code 08)
9.1.4.4 Test Pattern (Function code 09)
9.1.4.5 Firmware Switch Setting and Printout
(Function codes 10 and 11) (User-accessible)
9.1.4.6 Operational Check of LCD and Specifying of the LCD Type
(Function code 12) (User-accessible)
9.1.4.7 Operational Check of Control Panel PCB (Function code 13)
9.1.4.8 Updating of Firmware Using an External Memory (Function code 28)
9.1.4.9 Sensor Operational Check (Function code 32)
9.1.4.10 Addition of Cordless Handsets (Function code 33) (User-accessible)
9.1.4.11 Printout of Dial Log (Function code 37) (User-accessible)
9.1.4.12 Cordless Handset Transmitter Volume (Function code 39) (User-accessible)
9.1.4.13 Backup of Machine Information (Function code 46) (User-accessible)
9.1.4.14 Setting of Country/Language (Function code 52) (User-accessible)
9.1.4.15 Transfer of Received FAX Data and/or Equipment's Log (Function code 53) (User-accessible)
9.1.4.16 Fine Adjustment of Scanning Start/End Position (Function code 54)
9.1.4.17 Acquisition of White Level Data and CIS Scanner Area Setting (Function code 55)
9.1.4.18 Updating of Paper Feeding Correction Value (Function code 58)
9.1.4.19 Checking of CIS Travel and Specifying of CIS Type (Function code 59)
9.1.4.20 Travel Check of the Head/Carriage Unit and Initial Setup Mode (Function code 63)
9.1.4.21 Alignment of Vertical Print Lines in Monochrome (Function code 65)
9.1.4.22 Margin Adjustment in Borderless Printing (Function code 66) (User-accessible)
9.1.4.23 Updating of Property Data (Function code 68)
9.1.4.24 Head/Carriage Unit Traveling Speed Check (Function code 69)
9.1.4.25 EEPROM Customizing (Function code 74)
9.1.4.26 Travel of Head/Carriage Unit (for removing paper particles and dust accumulated on the maintenance unit) (Function code 75) (User-accessible)
9.1.4.27 Purge Operation (Function code 76) (User-accessible)
9.1.4.28 Print of the Equipment's Log (Function code 77)
9.1.4.29 Adjustment of Touch Panel (Function code 78)
9.1.4.30 Display of the Equipment's Log (Function code 80) (User-accessible). 9-60
9.1.4.31 Equipment Error Code Indication (Function code 82) (User-accessible)
9.1.4.32 Output of Transmission Log to the Telephone Line (Function code 87) (User-accessible)
9.1.4.33 Assurance Mode Switch Setting (Function code 88) (User-accessible)
9.1.4.34 Cancellation of the Pin TX Lock Mode (Not applicable to Japanese and U.S.A. models)
9.2 MAINTENANCE FUNCTIONS FOR CORDLESS HANDSETS
9.2.1 Overview
9.2.2 Maintenance Functions for U.S.A. Models
9.2.2.1 List of Maintenance Functions
9.2.2.2 Checking of Cordless Handset ID Code and Base ID Code (Function code 086)
9.2.2.3 Measuring of RSSI (Received Signal Strength Indicator) (Function code 195)
9.2.2.4 Measuring of BER (Bit Error Rate) (Function code 196)
9.2.2.5 Version Information on Cordless Handset (Function code 197)
9.2.2.6 EEPROM Parameter Initialization (Function code 198)
9.2.3 Maintenance Functions for European Models
9.2.3.1 List of Maintenance Functions
9.2.3.2 Version Information on Cordless Handset
9.2.3.3 Checking of Cordless Handset ID Code
9.2.3.4 Checking of Base ID Code
9.2.3.5 Setting of Country for Cordless Handset
Appendix 1 - Reading Labels
Shows the location of labels put on some parts and describes the coding information for serial number, head property data, and manufacturing information.
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.
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 information recorded in the machine and cordless handset(s).
Number of pages: 529.
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