Brother 1240 Manuals

Manuals and User Guides for Brother 1240. We have 1 Brother 1240 manual available for free PDF download: Service Manual

Brother 1240 Service Manual

Brother 1240 Service Manual (243 pages)

Brother Laser Printer SERVICE MANUAL HL-1030, 1240, 1250, 1270N

Brand: Brother | Category: Printer | Size: 5.21 MB

Table of Contents

Table of Contents
4
- Service Manual
  1
- Regulation
  9
- Safety Information
  11
- Chapter 1 General
  13
  - Features
    13
  - Overview
    16
  - Specifications
    17
    Printing
    17
    Functions
    18
    Electrical and Mechanical
    19
    Network (for HL-1270N Only)
    20
    Paper
    20
    Feedable Paper
    20
    Paper Cassette Capacity
    22
    Print Delivery
    22
    Printing Area
    23
    Effective Printing Area
    23
    Print Guaranteed Area
    23
- Chapter 2 Installation and Basic Operation
  25
- Chapter 3 Theory of Operation
  43
  - Electronics
    43
    General Block Diagram
    43
    Main PCB Block Diagram
    46
    Main PCB
    49
    Asic
    49
    Rom
    52
    Flash ROM
    54
    Dram
    54
    Optional RAM
    56
    Optional Serial I/O
    57
    PCI Bus
    57
    Eeprom
    58
    Reset Circuit
    58
    Engine I/O
    59
    Engine PCB
    60
    BR-Net PCB (for HL-1270 Only)
    60
    Power Supply
    61
    Low-Voltage Power Supply
    61
    High-Voltage Power Supply
    62
  - Mechanics
    63
    Overview of Printing Mechanism
    63
    Paper Transfer
    65
    Paper Supply
    65
    Paper Registration
    65
    Paper Eject
    66
    Sensors
    66
    Cover Sensors a and B
    66
    Toner Sensor
    67
    Drum Unit
    67
    Photosensitive Drum
    67
    Primary Charger
    67
    Transfer Roller
    67
    Cleaner
    67
    Toner Cartridge
    67
    Print Process
    68
    Charging
    68
    Exposure Stage
    68
    Developing
    69
    Transfer
    70
    Fixing Stage
    70
- Chapter 4 Disassembly and Re-Assembly
  71
  - Safety Precautions
    71
  - Disassembly Flow
    72
  - Disassembly Procedure
    73
    AC Cord
    73
    Drum Unit
    73
    Paper Cassette
    74
    Network Board (for HL-1270N Only)
    80
    Front Cover
    81
    Top Cover
    82
    Main Cover
    83
    Laser Unit
    85
    Drive Unit
    86
    Fixing Unit
    88
    Base Plate
    99
    Main PCB ASSY
    101
    Lower Tray Relay PCB ASSY (for HL-1250/1270N Only)
    101
    Low-Voltage Power Supply PCB ASSY
    102
    Engine PCB ASSY / High-Voltage Power Supply PCB ASSY
    104
    Panel PCB ASSY
    106
    Solenoid ASSY
    106
    Fan Motor ASSY
    109
    Toner Sensor PCB ASSY (Light Emission)
    110
    Toner Sensor PCB ASSY (Light Reception)
    110
    Paper Pick-Up Roller ASSY
    111
    Paper Feed Roller ASSY
    112
    Outer Chute 1
    113
  - Packing
    114
- Chapter 5 Periodic Maintenance
  115
  - Consumable Parts
    115
    Drum Unit
    115
    Toner Cartridge
    116
  - Periodical Replacement Parts
    118
  - Periodical Cleaning
    119
    Cleaning the Printer Exterior
    119
    Cleaning the Drum Unit
    119
    Cleaning the Scanner Window
    120
    Cleaning the Electrical Terminals
    120
  - Mtbf / Mttr
    121
- Chapter 6 Troubleshooting
  123
Table of Contents
221
- Frame / Drive Unit
  222
- Laser Unit
  222
- Paper Feeder
  224
- Fixing Unit
  226
- Paper Cassette
  230
- Covers
  231
- Main Pcb
  234
- Engine Pcb
  235
- Low-Voltage Power Supply Pcb
  235
- Ac Cords
  237
- High-Voltage Power Supply Pcb
  237
- Accessories
  239
- Network Board
  241
- Packing Materials
  241
- Adjusting Tool
  243

Advertisement

Advertisement

Related Products

Brother Categories

All in One Printer

All in One Printer

Printer

Printer Label Maker Fax Machine

More Brother Manuals