Brother MFC845CW/665CW User Manual

Service manual

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This manual is related to the following products:

FAX2580C/2480C, MFC660CN, MFC440CN, MFC240C

Table of contents

Document Outline

  • Top Page
    • Preface
    • How this manual is organized
    • SAFETY PRECAUTIONS
    • CHAPTER 1 PARTS NAMES AND FUNCTIONS
      • 1.1 OUTLINE
      • 1.2 CONTROL PANEL
      • 1.3 COMPONENTS
    • CHAPTER 2 SPECIFICATIONS
      • 2.1 GENERAL
        • 2.1.1 General Specifications
        • 2.1.2 Paper Specifications
        • 2.1.3 Printable Area
      • 2.2 SPECIFICATIONS LIST
    • CHAPTER 3 THEORY OF OPERATION
      • 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 ] Purge mechanism details
          • 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
      • 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
      • 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 ] Telephone problems
          • [ 3 ] Communications problems
          • [ 4 ] Paper/document feeding problems
          • [ 5 ] Print-image problems
          • [ 6 ] PC-driven printing problems
          • [ 7 ] Printing from memory cards--Compact Flash, Memory Stick, SD Memory Card, or xD-Picture Card
          • [ 8 ] Wireless LAN (WLAN)
          • [ 9 ] Others
        • 4.2.5 Problems Encountered Frequently in the Past
          • [ 1 ] Paper jams
          • [ 2 ] "MACHINE ERROR 4F" error message
          • [ 3 ] Ink-related problems
          • [ 4 ] Auto document feeder (ADF) malfunction
        • 4.2.6 Possible Component Defects and Resulting Problems
          • [ 1 ] ADF mechanism
          • [ 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 and LCD
          • [ 9 ] PCBs
          • [ 10 ] Adjustments/data in the memories
    • CHAPTER 5 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR
      • 5.1 TRANSFERRING RECEIVED FAX DATA
    • CHAPTER 6 DISASSEMBLY/REASSEMBLY AND LUBRICATION
      • 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
        • 6.1.4 Disassembly of ADF & Document Cover ASSY
        • 6.1.5 Control Panel ASSY, Scanner Cover Sensor Actuator, Ink Cartridge Cover Sensor Actuator, and Cover Sensor PCB
        • 6.1.6 Components of Control Panel ASSY
        • 6.1.7 Backup Battery (for models with backup battery) and Upper Cover
        • 6.1.8 Antenna & Cordless PCB ASSY (for models with cordless handset)
        • 6.1.9 Speaker
        • 6.1.10 Ink Cartridge Cover, Media Module Cover, Front Cover, and WLAN PCB
        • 6.1.11 Main PCB
        • 6.1.12 MJ/PS Shield Box 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 Felt, and PF Encoder Disk
        • 6.1.16 Engine Unit and Flushing Box
        • 6.1.17 Components on the Engine Unit (Maintenance unit, Mode switching lever & clutch gear ASSY, Carriage motor, Inner chute ASSY, Registration sensor PCB, PF encoder PCB, Paper feed motor, Paper pull-in gear shaft, and Paper pull-in roller holder)
        • 6.1.18 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
      • 7.1 PREPARATION
        • 7.1.1 Requirements
        • 7.1.2 Loading the Programs to the Machine
      • 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 ] Margin adjustment 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 programs
        • [ 2 ] Initialize the EEPROM on the main PCB (Function code 01)
        • [ 3 ] Specify the CIS type (Function code 59)
        • [ 4 ] Customize the EEPROM on the main PCB (Function code 74)
        • [ 5 ] Register base ID code to the main PCB and base unit (cordless PCB)
        • [ 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 ] Update the paper feeding correction value (Function code 58)
        • [ 11 ] Align vertical print lines (Function code 65)
        • [ 12 ] Margin adjustment in borderless printing (Function code 66)
        • [ 13 ] Switch back to standby
        • [ 14 ] Register cordless handsets
      • 7.4 IF YOU REPLACE THE INK ABSORBER BOX OR FLUSHING BOX
        • [ 1 ] Reset each of the purge and flushing counters
      • 7.5 IF YOU REPLACE THE SCANNER COVER (SCANNER UNIT)
        • [ 1 ] Specify the CIS type (Function code 59)
        • [ 2 ] Acquire white level data and set CIS scanner area (Function code 55)
      • 7.6 IF YOU REPLACE THE CORDLESS PCB
        • [ 1 ] Register base ID code to the main PCB and base unit (cordless PCB)
        • [ 2 ] Register cordless handsets
      • 7.7 IF YOU REPLACE THE CORDLESS HANDSETS
        • [ 1 ] Deregister and register cordless handsets
    • CHAPTER 8 CLEANING
      • 8.1 CLEANING THE EXTERNAL AND INTERNAL SURFACES OF THE MACHINE
      • 8.2 CLEANING THE MAINTENANCE UNIT
    • CHAPTER 9 MAINTENANCE MODE
      • 9.1 MAINTENANCE MODE FOR THE MACHINE
        • 9.1.1 Entry into the Machine Maintenance Mode
        • 9.1.2 List of Functions in the Machine Maintenance Mode
        • 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)
          • 9.1.4.6 Operational Check of LCD (Function code 12)
          • 9.1.4.7 Operational Check of Control Panel PCB (Function code 13)
          • 9.1.4.8 Sensor Operational Check (Function code 32)
          • 9.1.4.9 Transfer of Received FAX Data and/or Equipment's Log (Function code 53)
          • 9.1.4.10 Fine Adjustment of Scanning Start/End Position (Function code 54)
          • 9.1.4.11 Acquisition of White Level Data and CIS Scanner Area Setting (Function code 55)
          • 9.1.4.12 Updating of Paper Feeding Correction Value (Function code 58)
          • 9.1.4.13 Checking of CIS Travel and Specifying of CIS Type (Function code 59)
          • 9.1.4.14 Travel Check of the Head/Carriage Unit and Initial Setup Mode (Function code 63)
          • 9.1.4.15 Alignment of Vertical Print Lines in Monochrome (Function code 65)
          • 9.1.4.16 Margin Adjustment in Borderless Printing (Function code 66)
          • 9.1.4.17 Updating of Property Data (Function code 68)
          • 9.1.4.18 Head/Carriage Unit Traveling Speed Check (Function code 69)
          • 9.1.4.19 EEPROM Customizing (Function code 74)
          • 9.1.4.20 Travel of Head/Carriage Unit (for removing paper particles and dust accumulated on the maintenance unit) (Function code 75)
          • 9.1.4.21 Purging Operation (Function code 76)
          • 9.1.4.22 Display of the Equipment's Log (Function code 80)
          • 9.1.4.23 Equipment Error Code Indication (Function code 82)
          • 9.1.4.24 Output of Transmission Log to the Telephone Line (Function code 87)
          • 9.1.4.25 Assurance Mode Switch Setting (Function code 88)
          • 9.1.4.26 Cancellation of the Pin TX Lock Mode (Not applicable to U.S.A. models)
      • 9.2 MAINTENANCE MODE 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 EEPROM Parameter Initialization
          • 9.2.3.6 Initializing the Cordless Handset
    • Appendix 1. Reading Labels
    • Appendix 2. Firmware Installation
      • A2.1 Loading the Programs to the Flash ROM
    • Appendix 3. EEPROM Customizing Codes
    • Appendix 4. Firmware Switches (WSW)
    • Appendix 5. Wiring Diagrams
    • Appendix 6. Circuit Diagrams
      • A. MJ PCB (U.S.A. and Canadian models)
      • A. MJ PCB (European and Oceanian models)
      • B. Power supply PCB (U.S.A. and Canadian models)
      • B. Power supply PCB (European, Asian and Oceanian models)
    • Appendix 7. Deletion of Personal Information
      • A7.1 Deleting Personal Info from the Machine
      • A7.2 Deleting Personal Info from the Cordless Handset(s)
  • SPECIFICATIONS LIST
  • Paper Specifications
  • Maintenance-mode Functions
  • MACHINE ERROR XX
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