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C274
Ricoh C274
153 pages
Manual
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Fuse, LED, VR, DIP-SW
,
AND TP T
ables
SM 6-3
C274
T
rouble-
shooting
6.3
FUSE, LED, VR, DIP-SW, AND TP TABLES
See "Appendices" for the following information:
Fuse
table
LED
table
VR
table
DIP
switch
table
T
est point (TP) table
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA
114
116
Table of Contents
Main Page
Table of Contents
13
Service Manual
1
Read this First
17
Product Information
25
Specifications
27
Product Information
27
Mechanism Overview
28
Component Layout
28
Electrical Component Layout
29
Drive Layout
33
Guidance for those Who Are Familiar with Predecessor Products
34
Installation
35
Power Connection
37
Machine Access
37
Environments to Avoid
37
Optimum Environmental Condition
37
Installation Requirements
37
Dimensions
38
Installation Procedure
39
Main Unit
39
Accessory Check
39
Installation Procedure
40
Optional Installation
48
Additional Drums
48
Printer Unit VC-20 and Interface Board Type 20
49
Accessory Check (Interface Board Type 20)
49
Accessory Check (Printer Unit VC-20)
49
Installation Procedure
50
Preventive Maintenance
53
Maintenance Tables
55
Replacement and Adjustment
57
General Caution
59
Replacement and Adjustment
59
Special Tools
60
Image Adjustment
61
Sp6-42: Image Adjustment Pattern Print
61
Dip Switches
62
Overview
62
Dipsw103 No.5 to 8 - Master Feeding Speed Adjustment
63
Dipsw101 No.1 to 4 - Paper Registration Position Adjustment
64
Dipsw101 No.5 to 8 - Master Writing Position Adjustment
65
Dipsw102 No.1 to 3 - Thermal Head Energy Control
67
Dipsw103 No.1 to 4 - Scanning Speed Adjustment
67
Covers and Boards
69
Front Cover, Operation Panel
69
Rear Cover
69
Mpu
70
Psu
71
Scanner
72
Covers
72
1St and 2Nd Feed Rollers, Cis (Contact Image Sensor)
72
Document Sensor
73
Scanner Motor
74
Master Feed
75
Master Making Unit
75
Thermal Head
75
Installation
76
Thermal Head Voltage Adjustment
77
Master End Sensor Adjustment
78
Master Eject
79
Master Eject Unit
79
Master Eject Rollers
79
Paper Feed Pressure Adjustment
80
Paper Feed Roller / Friction Pad
80
Paper Feed
80
Paper Separation Pressure Adjustment
81
Printing
84
Press Roller
84
Paper Registration Roller
85
Press Roller Release Lever Adjustment
86
Printing Pressure Adjustment
87
Drum
89
Preparation
89
Cloth Screen
89
Installation
90
Clamper / Metal Screen
92
Installation
93
Ink Roller Unit / Ink Roller One Way Clutch
94
Ink Pump Unit
94
Doctor Roller Gap Adjustment
95
Ink Detection Adjustment
97
Paper Delivery
98
Paper Delivery Unit
98
Delivery Belt / Paper Exit Sensor
99
Exit Pawl Adjustment
99
Timing Adjustment
100
Main Drive
103
Main Drive Timing Belt Adjustment
103
Main Motor Pulley Position
103
Firmware Update
105
System Maintenance
107
Entering SP Mode
109
Using the Sp Mode
109
Leaving SP Mode
109
Using Service Program Modes
109
Sp Tables
109
Service Program Mode
109
System Maintenance Reference
109
Troubleshooting
111
Service Call Conditions
113
Electrical Component Defects
114
C274 Appendices
119
Appendix: Specifications
121
General Specifications
123
Main Frame
123
Appendix: Maintenance Tables
129
Maintenance Table
129
Service Call Condition
133
Appendix: Service Call Condition
135
Sc Tables
135
Appendix: Electrical Component Defects
139
Electrical Component Defects
139
Blown Fuse Conditions
141
Fuse, Led, Vr, Dip-Sw, and Tp Tables
141
Led's
141
Dip Switches
142
Vr's
142
Test Points
143
Appendix: Sp Mode Tables
145
Input Mode
147
Sp Table
147
Output Mode
150
Sp Table
150
SP2-41: Thermal Head Signal Output (VHD Signal)
151
Sp Table
152
SP3-1: Firmware Suffix Information
152
Test Mode
152
Adjustment Mode
153
Sp Table
153
SP6-42: Image Adjustment Pattern Print
153
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