Brother 8750P - FAX B/W Laser Manuals

Manuals and User Guides for Brother 8750P - FAX B/W Laser. We have 1 Brother 8750P - FAX B/W Laser manual available for free PDF download: Service Manual

Brother 8750P - FAX B/W Laser Service Manual

Brother 8750P - FAX B/W Laser Service Manual (295 pages)

FACSIMILE EQUIPMENT

Brand: Brother | Category: Fax Machine | Size: 8.75 MB

Table of Contents

Table of Contents
3
Safety Information
4
General Description
5
General Description Contents
6
Components
7
Equipment Outline
7
External Appearance and Weight
7
Specifications
8
Installation Contents
25
Connecting the Facsimile Equipment to Your Computer
26
Installing the Update Data to the Fascimile Equipment
26
Installing Update Data Onto the Flash ROM of the Facsimile Equipment
27
Table of Contents
29
Theory of Operation Contents
29
1 Overview

30
2 Mechanisms

31
- Laser Printing Mechanism
  31
- Scanner Mechanism
  32
  - Document Feeding and Ejecting Mechanism
    32
  - Paper Pick-Up and Registration Mechanism
    33
- Laser Printing Mechanism
  33
  - Print Process Mechanism
    34
    
    Charging Process
    35
    
    Exposing Process
    35
    
    Developing Process
    36
    
    Transferring Process
    36
    
    Cleaning the Transfer Roller
    36
  - Heat-Fixing Mechanism
    37
  - Paper Ejecting Mechanism
    38
- Sensors and Actuators
  39
- Location of Sensors and Actuators
  40
3 Control Electronics

41
- Configuration
  41
- Configuration of Facsimile Equipment
  41
- Main PCB
  42
- Block Diagram of Main PCB
  42
- Engine PCB
  44
- Ncu Pcb
  45
  - US Versions
    45
  - European Versions
    46
  - Asian/Oceanian Versions
    47
- Control Panel PCB
  48
- Control Panel PCB and Its Related Circuit
  48
- Power Supply PCB
  49
  - 1 ] Low-Voltage Power Supply PCB
    49
  - Low-Voltage Power Supply Circuit
    49
  - 2 ] High-Voltage Power Supply PCB
    50
    
    High-Voltage Power Supply Circuit
    50
    
    Disassembly/Reassembly and Lubrication Contents
    52
  - Disassembly/Reassembly
    54
  - Safety Precautions
    54
  - How to Access the Object Component
    55
  - Preparation
    55
  - Disassembly Order Flow
    56
  - Access Plates R and F
    57
  - Rear Cover
    57
  - Reassembling Notes
    57
  - Control Panel ASSY
    58
  - Panel Rear Cover and Control Panel
    59
  - Document Feed Roller ASSY, Document Ejection Roller ASSY, and Pinch Rollers
    62
  - CIS Unit
    63
  - Scanner Frame ASSY (Scanner Motor, Scanner Drive Unit, Document Take-In Roller, Separation Roller, Pressure Rollers, and Control Panel Locks
    64
  - Top Cover (Exit Roller, Speaker, and Document Guides
    68
    
    When Setting the Top Cover Back into Place
    72
    
    When Connecting the Speaker/Harness to the Main PCB
    73
  - Handset Mount and Hook Switch PCB (for Models Equipped with a Handset) Side Cover (for Models Without Handset
    74
  - Paper Sub Tray
    76
  - VC Cover, VC Bracket, and VC Connector PCB (for Models Supporting Video Capture
    77
  - Front Sub Cover (for Models Not Supporting Video Capture
    78
  - Outer Chute and Paper Pinch Rollers
    79
  - Main Cover
    80
  - Switch Cover
    81
  - Laser Unit
    82
  - Heat-Fixing Unit and FU Lamp
    83
  - Fan
    87
  - Drive Gear ASSY and Main Motor ASSY
    89
  - NCU Shield and NCU PCB
    91
  - Bottom Plate, Main PCB and Bottom Insulation Film
    93
  - Setting up the Main PCB after Replacement
    96
  - Low-Voltage Power Supply PCB and Power Inlet
    97
  - Inner Insulation Film, High-Voltage Power Supply PCB, Engine PCB, and 2Nd Cassette Relay PCB
    99
  - Toner Sensor (Light-Receiver) PCB and Toner Sensor (LED) PCB
    101
  - Gears and Paper Pick-Up Roller
    102
  - Paper Feed Roller ASSY
    103
  - Clutch Levers, Cassette Guide L, and Solenoid
    104
  - Paper Cassette
    105
  - Cleaning of High-Voltage Contacts and Grounding Contacts
    106
  - 1 ] Document Feed Roller ASSY and Document Ejection Roller ASSY
    108
  - Lubrication
    108
  - 2 ] Control Panel Locks
    109
  - 3 ] Scanner Frame ASSY, Document Take-In Roller and Its Shaft, and Separation Roller and Its Shaft
    109
  - 4 ] Top Cover
    110
  - 5 ] Drive Gear ASSY
    111
  - 6 ] Paper Cassette
    112
    
    Maintenance Mode Contents
    114
    
    Entry to the Maintenance Mode
    115
  - List of Maintenance-Mode Functions
    116
  - Detailed Description of Maintenance-Mode Functions
    118
  - EEPROM Parameter Initialization
    118
    
    Function
    118
    
    Operating Procedure
    118
  - Printout of Scanning Compensation Data
    119
  - Scanning Compensation Data List
    120
  - ADF Performance Test
    121
  - Test Pattern 1
    122
  - Firmware Switch Setting and Printout
    123
    
    Detailed Description for the Firmware Switches
    125
    
    Wsw01
    125
    
    Wsw02
    126
    
    Wsw03
    127
    
    Wsw04
    129
    
    Wsw05
    130
    
    Wsw06
    132
    
    Wsw07
    134
    
    Wsw08
    135
    
    Wsw09
    136
    
    Wsw10
    137
    
    Wsw11
    138
    
    Wsw12
    139
    
    Wsw13
    140
    
    Wsw14
    141
    
    Wsw15
    142
    
    Wsw16
    143
    
    Wsw17
    144
    
    Wsw18
    145
    
    Wsw19
    146
    
    Wsw20
    147
    
    Wsw21
    148
    
    Wsw22
    148
    
    Wsw23
    149
    
    Wsw24
    150
    
    Wsw25
    151
    
    Wsw26
    152
    
    Wsw27
    153
    
    Wsw28
    154
    
    Wsw29
    155
    
    Wsw30
    155
    
    Wsw31
    156
    
    Wsw32
    157
    
    Wsw33
    158
    
    Wsw34
    159
    
    Wsw35
    159
    
    Wsw36
    160
    
    Wsw37
    161
    
    Wsw38
    162
    
    Wsw39
    163
    
    Wsw40
    164
    
    Wsw41
    165
    
    Wsw42
    166
    
    Wsw43
    167
    
    Configuration List
    168
  - Operational Check of Control Panel PCB
    169
  - Key and Button Entry Order
    170
  - Receiver Volume Adjustment (Applicable to the American Version Only
    171
  - Sensor Operational Check
    172
  - CIS Scanner Area Setting
    173
  - EEPROM Customizing
    173
  - Equipment Error Code Indication
    174
  - Erasure of Received FAX Messages Temporarily Stored in the Flash Memory
    174
  - Cancellation of the Memory Security Mode (Applicable to the European Version Only
    175
  - Output of Transmission Log to the Telephone Line
    175
  - Error Indication and Troubleshooting
    177
  - 1 ] Error Messages on the LCD
    178
  - Equipment Errors
    178
  - Error Indication
    178
  - 2 ] Error Codes Shown in the "MACHINE ERROR X X" Message
    181
  - Communications Errors
    183
    
    Calling
    184
    
    Command Reception
    184
    
    Definition of Error Codes on the Communications List
    184
    
    Compatibility
    185
    
    Instructions Received from the Remote Terminal
    186
    
    DCN Reception
    187
    
    ID Checking
    187
    
    TCF Transmission/Reception
    187
    
    Signal Isolation
    188
    
    Video Signal Reception
    188
    
    General Communications-Related
    189
    
    Transmission in V. 34 Mode
    189
    
    Modem Error Details
    190
    
    Maintenance Mode
    191
    
    Equipment Error
    192
  - Checking Prior to Troubleshooting
    193
  - Introduction
    193
  - Precautions
    193
  - Recording Paper
    194
  - 1 ] Control Panel Related
    195
  - 2 ] Telephone Related
    195
  - Troubleshooting Procedures
    195
  - 3 ] Communications Related
    196
  - 4 ] Paper/Document Feeding Related
    196
  - 5 ] Print-Image Related
    197
  - Location of High-Voltage Contacts and Grounding Contacts
    204
    
    EEPROM Customizing Codes
    206
    
    Circuit Diagrams
    209
    
    Modem PCB
    224
    
    Engine PCB (Old Version)
    227
    
    Engine PCB (New Version)
    228
    
    Power Supply PCB (100-120V)
    236
    
    Power Supply PCB (200-240V)
    237
    
    High-Voltage Power Supply
    238
    
    Countries
    243
    
    Notes for Using the Parts Reference List
    243
    
    Main Frame
    245
    
    Document Scanner
    247
    
    Paper Transport
    251
    
    Paper Tray
    253
    
    Heat Fixing Unit
    255
    
    Cover
    257
    
    Control Panel
    259
    
    PCB Assy
    261
    
    Accessories
    263
    
    Printed Material
    264
    
    Carton
    266

Advertisement

Advertisement

Related Products

Brother Categories

All in One Printer

All in One Printer

Printer

Printer Label Maker Fax Machine

More Brother Manuals