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Epson CX3800 Service Manual Page 61
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Table of contents
TROUBLESHOOTING
BOOKMARKS
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CHAPTER
3
TROUBLESHOOTING
1
2
...
56
57
58
59
60
61
62
63
64
65
66
...
170
171
SERVICE MANUAL
1
PRECAUTIONS
3
About This Manual
4
Revision Status
5
CONTENTS
6
Chapter 5 ADJUSTMENT
7
Chapter 6 MAINTENANCE
7
Chapter 7 APPENDIX
7
PRODUCT DESCRIPTION
8
1.1 Overview
9
1.2 Specifications
10
• Humidity 40 to 60% RH
11
1.2.2 Scanner Specifications
18
1.2.3 Common
19
1.2.3.4 Acoustic Noise
20
1.2.3.6 CE Marking
20
1.3 Interface
21
1.4 Stand-alone Copy
22
1.4.2 Copy Speed
23
1.4.4.1 Standard Copy
24
1.4.4.2 BorderFree Copy
25
1.4.4.3 Small Margins Copy
26
1.5 Control Panel
27
(For Europe and Asia)
28
Figure 1-14. Control Panel
28
1.5.3 Operations
29
1.5.3.2 Low Power Panel Mode
30
1.5.5 Memory Functions
33
OPERATING PRINCIPLES
35
2.1 Overview
36
2.2 Printer Mechanism
36
2.2.2 Print Head
37
2.2.2.1 Printing Process
38
2.2.2.2 Printing Method
38
Carriage Unit
39
CR Motor
39
CL position
46
(valve closing condition)
46
Ink absorption position
46
(valve opening condition)
46
2.2.5.1 Capping Mechanism
47
2.2.5.2 Pump Unit Mechanism
48
2.2.6 Ink Sequence
49
2.3 Scanner Mechanism
51
2.4.1 PSB/PSE Board
53
2.4.2 C612 Main Board
54
2.4.2.3 Motor Driver Circuit
57
2.4.2.4 Combination Circuit
58
2.4.2.5 Sensor Circuit
59
TROUBLESHOOTING
61
3.1 Overview
62
CN1 Panel BoardPanel FFC
66
Extension Spring Retard
69
LD Roller
70
Compression Spring
70
Extension Spring 0.143
71
Clutch tooth
71
Compression Spring 2.36
72
Change Lever
72
Memory Chip
73
Connector
73
Head FFC
73
CSIC Connectors
73
CSIC Board
73
PE Sensor Lever
74
PE Sensor
74
Spring 0.22
74
EJ Frame Unit
75
Paper Guide Front Unit
75
Spur Gear 36
75
Star Wheel Holders
76
Paper Guide Upper Unit
76
Scanner Motor
77
Connector Cable
77
Slit of the CR
81
Encoder Board
81
CR Scale
81
Encoder FFCCR Encoder Board
81
PF Encoder Sensor
82
PE Sensor Connector Cable
82
Slider Lock Lever
83
Seal rubber part
86
Compression
86
Print Head
87
Connectors
87
CN6 CN5 CN7
87
CR movement
89
Porous Pad Paper Guide Front
90
Star Wheel Rollers
91
DISASSEMBLY/ASSEMBLY
92
W A R N I N G
93
4.1.3 Work Completion Check
94
4.3 Disassembly Procedures
96
4.4 Printer Section
97
4.4.2 Paper Support Assy
98
4.4.3 Stacker Assy
98
4.4.4 Scanner Unit
99
4.4.5 Panel Unit
100
4.4.6 Housing, Upper
101
4.4.7 Printhead
102
A D J U S T M E N T
103
R E Q U I R E D
103
4.4.8 Printer Mechanism
104
C A U T I O N
105
X axis: 4 points
106
4.4.9 PS Board Unit
107
Tube Clump
108
Eject Ink
108
Waste Ink Tube
108
4.4.11 Main Board Unit
111
4.4.12 ASF Unit
113
4.4.13 Holder Shaft Unit
115
4.4.16 CR Guide Frame
118
4.4.17 CR Motor
119
(only after replacement)
119
4.4.18 PF Motor
120
Board/Head FFC
121
for details
123
4.4.21 EJ Frame Unit
125
4.4.22 Ink System Unit
126
and Figure 6-12 (p153)for
127
4.4.24 PF Roller Unit
128
4.5 Scanner Section
129
4.5.2 Scanner Carriage Unit
130
Driven Pulley
132
ADJUSTMENT
133
C H E C K
134
P O I N T
134
PF band
135
PF Band Ad
137
5.2.1 EEPROM Data Copy
137
5.2.2 Market Setting
137
5.2.3 USB ID Input
137
5.2.4 Waste Ink Pad Counter
137
5.2.5 Ink Charge
138
5.2.6 Head ID Input
138
5.2.7 Top Margin Adjustment
138
5.2.8 First Dot Adjustment
138
[Judging Standard]
139
5.2.10 Bi-D Adjustment
140
5.2.11 CR Offset
140
5.3.1 PG Adjustment
141
C.B.S 3x6
142
Thickness gauge
142
PG up (narrower)
143
PG down (wider)
143
Left side Right side
144
PF Scale
144
MAINTENANCE
148
MAINTENANCE Overview 150
150
Guide Rail of the
151
Housing, Lower
151
Scanner Carriage Unit
151
MAINTENANCE Overview 152
152
MAINTENANCE Overview 153
153
Bush 10 (Right)
154
PF Roller Unit
154
Spool Gear 13.5
154
APPENDIX
155
7.1 Connector Summary
156
Table 7-3. CN3 - PE Sensor
157
Table 7-4. CN5 - Print Head
157
Table 7-5. CN6 - Print Head
157
Table 7-6. CN7 - Print Head
157
7.2 Exploded Diagram
159
APPENDIX Exploded Diagram 160
160
APPENDIX Exploded Diagram 161
161
APPENDIX Exploded Diagram 162
162
APPENDIX Exploded Diagram 163
163
APPENDIX Exploded Diagram 164
164
7.3 Parts List
165
APPENDIX Parts List 166
166
7.4 Electrical Circuits
167
Board: C612 MAIN
168
Rev. : B
168
Sheet: 1/2
168
Board: C610 PSB
169
Sheet: 1/1
169
Board: C610 PSE
170
Board: C612 PNL
171
Rev. : A
171
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