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Epson Stylus CX8400 Service Manual Page 141
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Confidential
CHAPTER
5
ADJUSTMENT
1
2
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SERVICE MANUAL
1
PRECAUTIONS
3
About This Manual
4
Revision Status
5
Contents
6
Chapter 6 MAINTENANCE
7
Chapter 7 APPENDIX
7
Chapter 5 ADJUSTMENT
7
PRODUCT DESCRIPTION
8
1.1 Features
9
1.2 Printing Specifications
10
(H x V dpi)
11
1.2.4 Supported Paper
13
1.2.5 Printing Area
15
1.3 Scanner Specifications
15
1.3.1 Scanning Range
15
(1 msec or less)
16
(2 msec or less)
16
1.5 Interface
17
1.5.2 Memory Card Slots
18
1.6 Control Panel
19
1.7.1.4 Copy Speed
30
1.7.2.7 Print Layout
34
<Borderless>
35
<With Border>
35
Paper top edge
35
(USB Direct Print/PictBridge)
36
USB Direct Print
37
PictBridge
37
1.7.5 Setup Mode
39
1.7.5.8 Head Alignment
40
OPERATING PRINCIPLES
41
2.1 Overview
42
2.1.2 Motors & Sensors
43
2.1.3 Printhead
44
2.1.3.1 Printing Process
45
2.1.3.2 Printing Method
45
Carriage Unit
46
Main Frame
46
Timing Belt
46
2.1.5.2 Paper Feed Mechanism
51
2.1.6 Ink System Mechanism
52
2.1.6.3 Wiping Mechanism
53
2.1.6.4 Pump Unit Mechanism
54
2.1.7 Ink Sequence
55
2.2 Scanner Mechanism
56
TROUBLESHOOTING
58
W A R N I N G
59
3.2 Troubleshooting
60
Scanner Carriage FFC
66
Scanner Carriage Unit
66
Compression Spring 2.36
68
Change Lever
68
Upper Paper Guide Unit
68
Slit of the CR Encoder Board
69
CR Scale
69
CR Encoder BoardEncoder FFC
69
PF Scale PF Encoder Sensor
70
PE Sensor
70
Connector Cable
70
Paper Back Lever
71
Extension Spring 6.4
71
Extension Spring Retard
71
Backside of ASF Unit
71
Star Wheel Holder Assy
72
Star Wheel Holders
72
EJ Roller Unit
72
Document Glass
78
Backside of ASF
79
Extension Spring 6.45
79
Panel FFC
80
PS Board
81
Power Unit Cable
81
PS Board Unit
81
Seal rubber part
85
Compression
85
Spring 1.67
85
CR movement
87
PF Roller Unit
87
LD Roller
88
Front Paper Guide Unit
88
Porous Pad Front Paper Guide
88
Star Wheels
89
DISASSEMBLY/ASSEMBLY
90
4.1.2 Tools
92
4.1.3 Work Completion Check
92
Panel Unit
94
LCD Unit
94
4.2 Disassembly Procedures
95
Paper Support Assy
96
Guide Pins
96
Stacker Assy
96
Document Cover
97
ASF Cover
97
4.3.4 Scanner Unit/Hinge
98
Confidential
100
4.4.1 Main Board Unit
101
4.4.2 Panel Unit/LCD Unit
103
4.4.3 Power Supply Unit
105
4.5.1 Printhead
107
4.5.2 CR Scale
109
4.5.3 Hopper
110
4.5.5 Left Frame
113
4.5.7 Star Wheel Holder Assy
116
4.5.8 EJ Roller
116
4.5.9 PF Encoder Sensor
117
4.5.10 PF Scale
118
4.5.11 PF Motor
119
4.5.12 CR Motor
120
4.5.13 Main Frame Assy
122
4.5.14 CR Unit
124
4.5.15 Upper Paper Guide
126
4.5.16 ASF Unit
126
4.5.17 Ink System Unit
128
Waste Ink Tube
130
Tube Stopper
130
4.5.18 Front Paper Guide
131
4.5.19 PF Roller
132
4.5.20 Waste Ink Pads
133
4.6.2 Scanner Carriage Unit
135
Scanner Timing Belt
137
Torsion Spring
137
Scanner CR Holder
137
4.6.3 Scanner Motor Unit
138
Stylus CX7300/TX200 series
139
ADJUSTMENT
141
C H E C K
142
P O I N T
142
5.1.2 Required Adjustments
144
5.2.1 TOP Margin Adjustment
146
5.2.4 Bi-D Adjustment
148
5.2.5 PF Adjustment
148
34 56 782
149
MAINTENANCE
151
C A U T I O N
152
Driven Pulley
153
MAINTENANCE Overview 154
154
MAINTENANCE Overview 155
155
MAINTENANCE Overview 156
156
MAINTENANCE Overview 157
157
APPENDIX
158
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