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I-sensys mf4370dn
Canon I-sensys mf4370dn User Manual
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Aug 22 2008
Service Manual
MF4300 Series
2
Table of Contents
Default Chapter
1
Service Manual
1
Table of Contents
7
Chapter 1 Introduction
13
Product Specifications
17
Names of Parts
17
External View
17
Section View (Host Machine)
20
Section View (ADF/DADF)
21
Control Panel
22
Safety
23
Safety of the Host Machine's Laser Mechanism
23
CDRH Regulations
23
Handling of the Laser Assembly
24
Safety of the Toner
24
Fire Attention
24
Points no Note When Replacing / Disposing the Lithium Battery
24
Product Specifications
25
Host Machine Specifications
25
ADF/DADF Specifications
26
FAX Specifications
26
Function List
27
Scanning Range (ADF/DADF)
27
Scanning Range (Copyboard)
27
Recording Range (Copy)
28
Recording Range (Reception)
29
Recording Range (Printer)
29
Operation Environment of the Printer Driver
30
Network Specifications
30
Chapter 2 Basic Operation
33
Construction
37
Function Configuration
37
Basic Sequence
37
Basic Operation Sequence
37
Chapter 3 Original Exposure System
39
Basic Construction
43
Specifications / Control / Function List
43
Major Components
43
Parts Replacement Procedure
45
Scanner Unit
45
Preparation for Removing the Scanner Unit
45
Removing the Scanner Unit
45
Reader Motor
45
Preparation for Removing the Flat Bed Motor
45
Removing the Flat Bed Motor
45
Contact Sensor
47
Removing the Contact Sensor
47
Chapter 4 Original Feeding System
49
Basic Operation (ADF)
53
Basic Operation (DADF)
53
Basic Operation
53
Basic Operation (DADF)
54
Original Detection
56
Detection Jams
57
Jam Detection
57
Adf/Dadf
58
Pick-Up Roller
58
Removing the ADF Pickup Roller
58
Removing the DADF Pickup Roller Unit
58
ADF Motor
60
Preparation for Removing the ADF/DADF Motor
60
Removing the ADF Motor
60
Removing the DADF Motor
61
Separation Pad
64
Removing the ADF Separation Pad
64
Removing the DADF Separation Pad
64
Chapter 5 Laser Exposure
67
Overview/Configuration
71
Overview
71
Controlling the Laser Activation Timing
72
Laser on / off Control
72
Controlling the Intensity of Laser Light
72
Auto Photoelectric Current Control (APC)
72
Controlling the Laser Scanner Motor
74
Overview
74
Scanner Motor Speed Control
74
Detection of Fault of the Scanner Motor
74
Parts Replacement Procedure
75
Laser/Scanner Unit
75
Preparation for Removing the Laser Scanner Unit
75
Removing the Laser Scanner Unit
75
Chapter 6 Image Formation
77
Overview/Configuration
81
Configuration
81
Print Process
81
Driving and Controlling the High-Voltage System
82
Generation of Transfer Charging Bias
82
Toner Cartridge
83
Toner Level Detection
83
Parts Replacement Procedure
84
Transfer Charging Roller
84
Removing the Transfer Charging Roller
84
Chapter 7 Pickup and Feed System
85
Overview/Configuration
89
Overview
89
Other Control
90
Overview
90
Detection Jams
91
Jam Detection Outline
91
Overview
91
Delay Jams
91
Pickup Delay Jam
91
Delivery Delay Jam
91
Stationary Jams
91
Pickup Stationary Jam
91
Delivery Stationary Jam
91
Other Jams
91
Wrapping Jam
92
Residual Jam at Startup
93
Duplex Unit
94
Overview
94
Parts Replacement Procedure
95
Main Motor
95
Preparation for Removing Main Motor
95
Removing Main Motor
95
Separation Pad
95
Preparation for Removing Separation Pad
95
Removing Separation Pad
95
Pickup Roller
95
Removing Pickup Roller
95
Chapter 8 Fixing System
97
Overview/Configuration
101
Specification/Control/Function List
101
Overview
101
Various Control Mechanisms
103
Controlling the Temperature of the Fixing Unit
103
Fixing Temperature Control
103
Protection Function
104
Parts Replacement Procedure
106
Fixing Unit
106
Preparation for Removing Fixing Assembly
106
Removing Fixing Assembly
106
Fixing Film Unit
106
Preparation for Removing Fixing Film Unit
106
Removing Fixing Film Unit
107
Chapter 9 External and Controls
109
Control Panel
113
Outline
113
Power Supply
113
Power Supply Route
113
Protection Function
113
Protecting Function
113
Parts Replacement Procedure
114
Front Cover
114
Removing the
114
Rear Cover
114
Preparation for Removing the Rear Cover
114
Removing the Rear Cover
114
Right Cover
114
Removing the Right Cover
114
Left Cover
115
Removing the Left Cover
115
Upper Cover
116
Preparation for Removing the Upper Cover
116
Removing the Upper Cover
116
Cartridge Cover
116
Preparation for Removing the Printer Cover
116
Removing the Printer Cover
116
Operation Panel Unit
116
Removing the Control Panel Unit
116
SCNT Board
117
Preparation for Removing the SCNT PCB
117
Removing the SCNT PCB
117
Actions at Replacing the SCNT PCB
117
DCNT Board
118
Preparation for Removing the DCNT PCB
118
Removing the DCNT PCB
118
Power Supply PCB
119
Preparation for Removing the Power Supply PCB
119
Removing the Power Supply PCB
119
High-Voltage Power Supply Board
119
Preparation for Removing the High Voltage PCB
119
Removing the High Voltage PCB
120
Chapter 10 Maintenance and Inspection
121
Periodically Replaced Parts
123
Periodically Replaced Parts
125
Periodical Service
125
Periodically Service Items
125
Cleaning
125
Cleaning Items
125
Cleaning Method (External Covers)
125
Cleaning Method (Reader Unit)
126
Cleaning Method (Pressure Roller)
127
Chapter 11 Measurement and Adjustments
129
Basic Adjustments
131
Basic Adjustments
133
Paper Margin Adjustment
133
Reading Adjustment
133
Print Adjustment
134
Chapter 12 Correcting Faulty Images
135
Outline of Electrical Components
139
Clutch/Solenoid/Motor/Fan
139
List of Solenoids/Motors
139
Sensor
141
List of Sensors
141
Pcbs
143
List of Pcbs
143
Chapter 13 Error Code
145
Error Code
145
Error Code Outline
147
Error Code
149
Error Code Outline
149
Chapter 14 Service Mode
153
Setting Service Data
157
How to Activate Service Mode
157
Outline
157
Service Data Menu
158
Service Soft Switch Settings (SSSW)
160
Outline
160
SOFT SWITCH Explained
160
Sssw-Sw02
162
Function List
162
Bit 2 and 3 Elaborated
162
Bit 5 Elaborated
162
Sssw-Sw04
162
Bit 8 Elaborated
163
Sssw-Sw10
163
Function List
163
Bit 1 Elaborated
164
Bit 2 Elaborated
164
Sssw-Sw16
164
Function List
164
Sssw-Sw20
164
Ã@Î\Àíóó
164
Bit6Åa7Åa8Çãè⁄Çþ
164
Sssw-Sw21
165
Function List
165
Bit 4 Elaborated
165
Sssw-Sw23
165
Ã@Î\Àíóó
165
Bit5Åa6Çãè⁄Çþ
166
Bit7Åa8Çãè⁄Çþ
166
Sssw-Sw30
166
Function List
166
Bit 7 and 8 Elaborated
167
Sssw-Sw37
167
Function List
167
Bit 1 to Bit 6 Elaborated
167
Sssw-Sw39
168
Function List
168
Bit 7 Elaborated
168
Bit 8 Elaborated
169
Sssw-Sw51
169
Function List
169
Bit 3 and 4 Elaborated
169
Sssw-Sw54
169
Bit 6 and 7 Elaborated
170
Test Mode (TEST)
171
Overview
171
Outline of Test Mode
171
Test Mode Menu
171
Faculty Test
172
Print Test Pattern
172
ÊMçüéeéXég
172
Sensor Test
172
Key Test
172
Chapter 15 Service Tools
175
Service Tools
179
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Canon I-sensys mf4370dn Specifications
General
Brand
Canon
Model
I-sensys mf4370dn
Category
All in One Printer
Language
English
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