Brother HL 1240 - B/W Laser Printer Manuals

Brother HL 1240 - B/W Laser Printer Manuals

Manuals and User Guides for Brother HL 1240 - B/W Laser Printer. We have 1 Brother HL 1240 - B/W Laser Printer manual available for free PDF download: Service Manual

Brother HL 1240 - B/W Laser Printer Service Manual

Brother HL 1240 - B/W Laser Printer Service Manual (333 pages)

Service Manual

Brand: Brother | Category: Printer | Size: 5.22 MB

Table of Contents

Table of Contents

4
- Safety Information
  11
- Chapter 1 General
  
  13
  - Features
    13
  - Overview
    15
  - Specifications
    16
    
    Functions
    16
    
    Printing
    16
    
    Electrical and Mechanical
    17
    
    Feedable Paper
    18
    
    Paper
    18
    
    Paper Cassette Capacity
    19
    
    Effective Printing Area
    20
    
    Print Delivery
    20
    
    Printing Area
    20
    
    Print Guaranteed Area
    21
- Chapter 2 Installation and Basic Operation
  
  23
  - Conditions Required for Installation
    23
    
    Environment
    23
    
    Power Supply
    23
  - Unpacking
    24
    
    Install the Printer
    25
    
    Install the Drum Unit
    27
    
    Load Paper
    27
    
    Connect the Printer and the Computer
    28
    
    Install the Printer Driver from Floppy Disk
    28
    
    Connect the USB Interface Cable
    29
    
    For Macintosh (Imac and Power Macintosh) with USB Users Only
    31
    
    Set the PC Printer Port
    31
    
    Load Paper into the Paper Cassette
    32
    
    Load Paper Manually
    32
    
    Paper Handling
    32
    
    To Print on both Sides of the Paper from the Paper Cassette
    33
    
    Two Side Printing (Manual Duplexing)
    33
    
    To Print on both Sides of the Paper from the Manual Feed Slot
    34
  - Control Panel Operation
    35
    
    Ready (Paper) LED Indications
    35
    
    Alarm LED Indications
    36
    
    Data (Toner) LED Indications
    36
    
    Drum LED Indications
    36
    
    Control Panel Button Operations
    37
    
    Other Control Features
    37
    
    Sleep Mode
    37
    
    Test Print Mode
    38
- Chapter 3 Theory of Operation
  
  39
  - Electronics
    39
    
    General Block Diagram
    39
    
    Main PCB Block Diagram
    41
  - Main PCB
    43
    
    Asic
    43
    
    Dram
    47
    
    Optional RAM
    49
    
    Eeprom
    50
    
    Optional Serial I/O
    50
    
    Reset Circuit
    51
    
    Engine I/O
    52
    
    Engine PCB
    52
    
    Power Supply
    53
  - Low-Voltage Power Supply
    53
  - High-Voltage Power Supply
    54
    
    Paper Registration
    57
    
    Paper Supply
    57
    
    Paper Transfer
    57
    
    Cover Sensors a and B
    58
    
    Paper Eject
    58
    
    Sensors
    58
    
    Cleaner
    59
    
    Drum Unit
    59
    
    Photosensitive Drum
    59
    
    Primary Charger
    59
    
    Toner Cartridge
    59
    
    Toner Sensor
    59
    
    Transfer Roller
    59
    
    Charging
    60
    
    Exposure Stage
    60
    
    Print Process
    60
    
    Developing
    61
    
    Fixing Stage
    62
    
    Transfer
    62
  - Safety Precautions
    63
- Chapter 4 Disassembly and Re-Assembly
  
  65
  - Disassembly Procedure
    65
    
    Paper Cassette
    68
    
    Fixing Unit
    81
    
    Base Plate
    89
    
    Low-Voltage Power Supply PCB ASSY
    91
    
    Engine PCB ASSY / High-Voltage Power Supply PCB ASSY
    92
    
    Panel PCB ASSY
    94
    
    Solenoid ASSY
    94
    
    Fan Motor ASSY
    97
    
    Toner Sensor PCB ASSY (Light Reception)
    98
    
    Paper Pick-Up Roller ASSY
    99
    
    Paper Feed Roller ASSY
    100
  - Packing
    101
- Chapter 5 Periodic Maintenance
  
  103
  - Consumable Parts
    103
    
    Drum Unit
    103
    
    Toner Cartridge
    104
  - Periodical Replacement Parts
    106
  - Periodical Cleaning
    107
    
    Cleaning the Drum Unit
    107
    
    Cleaning the Printer Exterior
    107
- Chapter 6 Troubleshooting
  
  111
  - Introduction
    111
    
    Initial Check
    111
    
    Warnings for Maintenance Work
    112
    
    Operator Calls
    114
    
    Service Calls
    114
    
    Error Messages in the Status Monitor
    116
    
    Error Message Printouts
    118
  - Paper Problems
    119
    
    Paper Feeding Problems
    122
  - Software Setting Problems
    124
  - Malfunctions
    128
  - Image Defects
    133
    
    Image Defect Examples
    133
    
    Troubleshooting Image Defect
    134
    
    Drum Unit
    151
    
    Location of Grounding Contacts
    151
  - Incorrect Printout
    152
    
    Inspection Mode
    155
    
    Test Print Mode
    155
  - Inspection Mode
    156
  - Engine Pcb
    174
    
    Fixing Unit
    174
  - Main Pcb
    174
    
    Laser Unit
    174
  - Disassembly Flow
    187
    
    Parts Reference List
    193
About this Printer

212
- Shipment of the Printer
  217
  - What Is Included in the Carton
    219
- Chapter1 about This Printer
  219
  - About Your Printer
    220
  - Features of Your Printer
    221
    
    Popular Printer Emulation Support
    222
    
    Quick Print Setup
    222
    
    Remote Printer Console Program for Dos
    222
    
    Enhanced Memory Management
    223
  - What Printer Options Are Available
    225
  - Place the Printer
    226
  - System Requirements for the Brother Printing Solution for Windows
    227
  - What Kind of Paper Can I Use
    228
    
    Media Type
    228
    
    Paper Specification
    228
- Paper Cassette
  228
  - Manual Feed Slot
    228
  - Paper Capacity
    229
  - Recommended Paper
    229
  - Cut Sheet
    230
  - Special Paper
    231
  - Printable Area
    232
  - Unprintable Area
    232
  - How to Load Paper into the Paper Cassette
    233
    
    How to Load a Sheet of Paper Manually
    236
    
    How to Print on both Sides of the Paper
    242
    
    Manual Duplexing
    242
    
    To Print on both Sides of the Paper from the Paper Cassette
    243
    
    To Print on both Sides of the Paper from the Manual Feed Slot
    244
    
    What Do the Led Indications Mean
    245
    
    Alarm Led Indications
    249
    
    Drum Led Indications
    249
    
    Cancel Printing
    250
    
    Control Panel Button Operations
    250
    
    Error Recovery
    250
    
    Form Feed
    250
    
    Other Control Features
    251
    
    Sleep Mode
    251
    
    Test Print Mode
    252
    
    Optional Accessories and Supplies
    253
    
    The Lower Tray Unit (for Hl-1250 Only)
    254
    
    How to Set the Serial Interface Parameters
    257
    
    How to Connect the Serial Interface Cable
    260
    
    What Is the Brother Print Server (Nc-2010P)
    262
    
    How to Add Extra Memory (for Hl-1250 Only)
    263
    
    How to Install Additional Simm Memory
    264
  - Chapter 3 Maintenance
    267
    
    How to Replace the Toner Cartridge
    269
    
    How to Replace the Drum Unit
    275
    
    Cleaning the Printer Exterior
    280
    
    How to Clean the Printer
    280
    
    Cleaning the Printer Interior and Drum Unit
    282
  - Chapter 4 Troubleshooting
    285
    
    Identifying Your Problem
    285
    
    Printer Does Not Print
    285
    
    Control Panel Indications
    286
    
    Operator Calls and How to Clear Them
    286
    
    Service Call Indications
    288
    
    Error Messages in the Status Monitor
    290
    
    Error Message Printouts
    292
    
    Paper Handling
    294
    
    PAPER JAMS and How to Clear Them
    295
    
    For DOS Users
    300
    
    For Printing with the Serial Interface (for HL-1250 Only)
    300
    
    Others
    300
    
    For Apple Macintosh Computers User
    301
    
    For Imac and Power Macintosh G3 with USB
    301
    
    Improving the Print Quality
    302
    
    How to Print Correctly
    308
    
    For DOS Users
    309
- Appendix
  310
  - Printer Technical Specifications
    310
    
    Printing
    310
  - Print Speed
    311
    
    Print Media
    311
    
    Functions
    312
    
    Electrical and Mechanical
    313
    
    Power Consumption
    313
    
    Power Source
    313
    
    Parallel Interface Specifications
    314
    
    USB (Universal Serial Bus) Interface
    316
    
    Bitmapped Fonts
    317
    
    Resident Font
    317
    
    Scalable Fonts
    318
    
    HP Laserjet 6P Mode (HL-1250
    319
    
    HP Laserjet IIP Mode (HL-1240
    319
    
    OCR Symbol Sets (HL-1250 Only
    319
    
    Symbol Sets / Character Sets
    319
    
    EPSON Mode (HL-1250 Only
    320
    
    IBM Mode (HL-1250 Only
    320
    
    Compilation and Publication Notice
    325

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