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FAX4759
User Manuals: Brother FAX4759 Fax Machine
Manuals and User Guides for Brother FAX4759 Fax Machine. We have
1
Brother FAX4759 Fax Machine manual available for free PDF download: Service Manual
Brother FAX4759 Service Manual (266 pages)
Brand:
Brother
| Category:
Fax Machine
| Size: 11.53 MB
Table of Contents
Chapter III. Theory of Operation
28
Safety Information
3
General Description
4
Equipment Outline
6
External Appearance and Weight
6
Specifications
7
Table of Contents
28
Theory of Operation
28
1 Overview
29
2 Mechanisms
30
Scanner Mechanism
31
Document Feeding and Ejecting Mechanism
31
Scanner
31
Laser Printing Mechanism
32
Paper Pick-Up and Registration Mechanism
32
Print Process Mechanism
33
Charging Process
34
Exposing Process
34
Developing Process
35
Transferring Process
35
Heat-Fixing Mechanism
36
Paper Ejecting Mechanism
37
Sensors and Actuators
38
3 Control Electronics
40
Configuration
40
Main PCB
41
Engine PCB
43
Ncu Pcb
44
Control Panel PCB
47
Power Supply PCB
48
1 ] Low-Voltage Power Supply PCB
48
2 ] High-Voltage Power Supply PCB
49
Chapter IV. Disassembly/Reassembly and Lubrication
51
1 Disassembly/Reassembly
53
Safety Precautions
53
Preparation
54
How to Access the Object Component
54
Disassembly Order Flow
55
Rear Cover
56
Access Plates R and F
56
Control Panel ASSY
57
Panel Rear Cover and Control Panel
58
Document Feed Roller ASSY, Document Ejection Roller ASSY, and Pinch Rollers
61
CIS Unit
62
Scanner Frame ASSY (Scanner Motor, Scanner Drive Unit, Document Take-In Roller, Separation Roller, Pressure Rollers, and Control Panel Locks
63
Top Cover (Exit Roller, Speaker, and Document Guides
67
Handset Mount and Hook Switch PCB (for Models Equipped with a Handset) Side Cover (for Models Without Handset
73
Paper Sub Tray
75
VC Cover, VC Bracket, and VC Connector PCB (for Models Supporting Video Capture
76
Front Cover
77
Front Sub Cover (for Models Not Supporting Video Capture
77
Outer Chute and Paper Pinch Rollers
78
Main Cover
79
Switch Cover
80
Laser Unit
81
Heat-Fixing Unit and FU Lamp
82
Fan
86
Drive Gear ASSY and Main Motor ASSY
88
NCU Shield and NCU PCB
90
Bottom Plate, Main PCB and Bottom Insulation Film
92
Low-Voltage Power Supply PCB and Power Inlet
96
Inner Insulation Film, High-Voltage Power Supply PCB, Engine PCB, and 2Nd Cassette Relay PCB
98
Toner Sensor (Light-Receiver) PCB and Toner Sensor (LED) PCB
100
Gears and Paper Pick-Up Roller
101
Paper Feed Roller ASSY
102
Clutch Levers, Cassette Guide L, and Solenoid
103
Paper Cassette
104
Cleaning of High-Voltage Contacts and Grounding Contacts
105
2 Lubrication
107
1 ] Document Feed Roller ASSY and Document Ejection Roller ASSY
107
2 ] Control Panel Locks
108
3 ] Scanner Frame ASSY, Document Take-In Roller and Its Shaft, and Separation Roller and Its Shaft
108
4 ] Top Cover
109
5 ] Drive Gear ASSY
110
6 ] Paper Cassette
111
Chapter V. Maintenance Mode
113
1 Entry into the Maintenance Mode
114
2 List of Maintenance-Mode Functions
115
3 Detailed Description of Maintenance-Mode Functions
117
EEPROM Parameter Initialization
117
Printout of Scanning Compensation Data
118
ADF Performance Test
120
Test Pattern 1
121
Firmware Switch Setting and Printout
122
Operational Check of LCD
168
Operational Check of Control Panel PCB
168
Receiver Volume Adjustment (Applicable to the American Version Only
170
Sensor Operational Check
171
CIS Scanner Area Setting
172
EEPROM Customizing
172
Erasure of Received FAX Messages Temporarily Stored in the Flash Memory
173
Equipment Error Code Indication
173
Output of Transmission Log to the Telephone Line
174
Cancellation of the Memory Security Mode
174
Chapter VI. Error Indication and Troubleshooting
176
1 Error Indication
177
Equipment Errors
177
1 ] Error Messages on the LCD
177
2 ] Error Codes Shown in the "MACHINE ERROR X X" Message
180
Communications Errors
182
2 Troubleshooting
192
Introduction
192
Precautions
192
Checking Prior to Troubleshooting
192
Troubleshooting Procedures
194
1 ] Control Panel Related
194
2 ] Telephone Related
194
3 ] Communications Related
195
4 ] Paper/Document Feeding Related
195
5 ] Print-Image Related
196
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