Canon NP1550 Manuals

Manuals and User Guides for Canon NP1550. We have 2 Canon NP1550 manuals available for free PDF download: Service Manual

Canon NP1550 Service Manual (137 pages)

Brand: Canon | Category: All in One Printer | Size: 4.25 MB

Features
2
Specifications
3
Names of Parts
6
External View
6
Cross Section
7
Operation
8
Control Panel
8
Basic Copying Operation
9
Pick-Up from Multifeeder
9
Two-Sided Copying
10
Overlay Copy Operation
10
Auto Start
10
Replacing the CT Unit
10
Warning Indicator and Required Action
11
Jam Indicator
11
ADD PAPER Indicator
12
Cassette
12
Multifeeder
12
ADD TONER Indicator
13
CONTROL CARD Indicator
13
Black Developing Assembly
13
CT Unit (Color Developing Unit)
13
Daily Inspection by the Customer
14
Copying Process
15
Image Formation Process
15
Outline
15
Electrostatic Latent Image Formation Block
15
Pre-Exposure
16
Primary Corona
16
Pre-Exposure Lamp
16
Primary Corona Assembly
16
Scanning Exposure
17
Developing
17
Transfer
18
Separation
18
Auxiliary Processes
19
Fixing
19
Drum Cleaning
19
Blank Exposure
19
Operations and Timing
20
Basic Operation
20
Functions
20
Outline of Electric Circuitry
21
Inputs to DC Controller
23
DC Controller Outputs
25
Basic Sequence of Operstions (Direct, Continuous Copying)
28
Exposure System
30
Changing the Reproduction Ratio
30
Lens Drive System
30
DC Controller PCB
31
Basic Lens Drive System Operation (Change of Reproduction Ratio)
32
Scanner Drive System
33
Relation between Scanner Sensor and Signals
34
Basic Scanner Operation
34
Scanner Motor Drive System Operation
35
Scanner Movement for Two-Page Separation Mode
36
Image Formation System
37
Basic Operation of Image Formation System (Black Developing Assembly)
38
Controlling the Scanning Lamp
39
Primary/Transfer Corona Current and Grid Bias Voltage Control System
40
Switching Primary/Transfer Corona Current ON/OFF
40
Maintaining Primary/Transfer Corona Current Constant
40
Controlling Developing Bias
41
Controlling Grid Bias Voltage
41
Changes in Development Bias (DC Component) by COPY DENSITY Knob
42
Developing Bias Operation
43
Document Density Measurement System
44
Reading the Output of the AE Sensor
44
Developing Assembly/Drum Cleaner
46
Remaining Toner System
46
Torque Limiter
46
Blanking
47
Movement of the Blank Exposure Mechanism
47
Paper Transport System
49
Paper Pick-Up Assembly and Feeder
49
Pick-Up and Feeder Operation
50
Identifying the Cassette Size
51
Fixing and Paper Delivery Assemblies
54
Operation of Fixing Assembly Temperature Control System
55
Jam Detection
56
Pick-Up Assembly Delay Jam
56
Delivery Assembly Stationary Jam
57
Delivery Assembly Delay Jam
57
Power Supply
58
DC Power Supply Circuit
58
AC Driver Circuit
58
Service Mode
60
Guide to Service Mode
61
Adjustment
64
Image Leading Edge Non-Reproduced Area
64
AE Adjustment
65
Self Diagnosis
66
Mechanical System
68
Externals
68
External Covers
68
Detaching the Inside Cover
68
Detaching the Right Door
69
Detaching the Control Panel
69
Copyboard Cover
70
Fans
70
Scanner Cooling Fan (FM1)
70
Exhaust Fan (FM2)
70
Drive System
72
Lens Drive Assembly
72
Detaching the Lens Cable
73
Routing the Lens Cable
73
Scanner Drive Assembly
74
Detaching the Scanner Cable
74
Attaching the Scanner Cable
74
Adjusting the Mirror Position
75
Using the Mirror Cleaning Tool
76
Cleaning the no 5/6 Mirror
76
Lubricating
76
Main Motor Assembly
77
Detaching the Main Motor
77
Feeder System
78
Detaching the U Guide Plate
78
Detaching the Pick-Up Roller Shaft
79
Pick-Up Roller
81
Positioning the Pick-Up Roller
81
Detaching the Multifeeder Roller
81
Feeder Assembly
83
Feeder Belt
83
Feeder Fan
84
Exposure Assembly
85
Detaching the Scanning Lamp
85
Detaching the Thermal Fuse
85
Blank Assembly
86
Detaching the Pre-Exposure PCB
86
Detaching the Blank Assembly
86
Corona System
87
Detaching the Drum Unit
87
Cleaning
87
Primary/Transfer Corona
88
Disassembly/Assembly
88
Development System
90
Developing Assembly
90
Detaching the Developing Assembly
90
Detaching the Blade, Developing Cylinder and Side Seal
90
Attaching the Side Seal and the Blade
92
Fixing System
93
Fixing Assembly
93
Construction
93
Detaching the Fixing Assembly
93
Detaching the Upper Fixing Roller, Heater and Lower Fixing Roller
94
Attaching the Heater and Upper Fixing Roller
96
Adjusting the Nip Width (Tightening the Pressure Adjusting Nut)
96
Attaching the Thermistor
97
Attaching the Thermoswitch
97
Position of Paper Guide
97
Detaching the Cleaning Roller
98
Detaching the Upper Separation Claw
98
Attaching the Upper Separation Claw
99
Detaching the Lower Separation Claw
99
Installation
100
Location
100
Unpacking and Installing the Copier
101
Mounting the Drum
103
Checking the Operation
104
Adding Toner
105
Checking the Image
106
Setting the Cassette Size
107
Modifying the Cassette Size
107
Replacing the Cassette Spring
110
Removing the Pick-Up Roller
111
Setting the CT Unit
112
Relocating the Copier
113
Setting Control Card V
114
Attaching the Document Holder
116
Maintenance and Servicing
117
Periodically Replaced Parts
117
Durable Parts
118
Basic Procedure for Periodic Servicing
119
Periodic Servicing Schedule
120
General Timing Chart
121
Multi Feed
122
List of Signals/Commands
123
Signals
123
Abbreviations
123
General Circuit Diagram
124
DC Controller Circuit Diagram
126
AE Sensor Circuit Diagram
131
AC Driver/DC Power Supply Circuit Diagram
132
Pre-Exposure Lamp Circuit Diagram
133
HVT Circuit Diagram
134
List of Special Tools
135
List of Solvents and Materials
136

Canon NP1550 Service Manual (136 pages)

Brand: Canon | Category: Copier | Size: 3.2 MB

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Canon NP1550 Service Manual (137 pages)

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Canon NP1550 Service Manual (136 pages)

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