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Epson Stylus DX4850 Service Manual
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EPSON Stylus CX4100/CX4200/CX47
00/CX4800/DX4200
/DX4800/DX4850
Revision A
APPENDIX
Electrical Circuits
216
7.4 Electrical Circuits
The electric circuit diagrams below
are shown at
the following pages:
C610 Main control
circuit board
C610 PSB/PSE power supply circuit board
C571/C577 Panel circuit board
C610 I/F
215
217
Table of Contents
Default Chapter
1
Service Manual
1
About this Manual
4
Manual Configuration
4
Symbols Used in this Manual
4
Table of Contents
6
Chapter 1 PRODUCT DESCRIPTION
10
Overview
10
Features
10
Specifications
12
Printer Specifications
12
Scanner Specifications
21
Chapter 2 OPERATING PRINCIPLES
22
Print Head
22
Common
22
USB Interface
24
Standard Card Slots (Only for CX4700/CX4800/DX4800/DX4850)
26
Chapter 3 TROUBLESHOOTING
27
Overview
27
Stand-Alone Copy
28
Copy Speed
30
Relation between Original and Copy
31
Borderfree Copy
32
Memory Card Print (Only for CX4700/CX4800/DX4800/DX4850)
34
Functions
35
Index Sheet
37
Layout and Paper Type, Paper Size
40
Trimming Function
41
Layout Drawings
43
Relation between Paper Type and Quality
46
Control Panel
47
Buttons
47
Indicators
47
Operations
49
Printer Condition and Panel Status
54
Memory Functions
58
Carriage Mechanism
64
Paper Loading/Feeding Mechanism
66
Operating Principles
68
Paper Feeding Mechanism
70
Ink System Mechanism
71
Ink Sequence
74
Scanner Mechanism
76
Electrical Circuit Operating Principles
78
C610 PSB/PSE Board
79
C610 Main Board
80
Motor Driver Circuit
83
Troubleshooting
93
Scanner Housing, Upper
97
Scanner Carriage Unit
108
Superficial Phenomenon-Based Troubleshooting
113
Chapter 4 DISASSEMBLY/ASSEMBLY
122
Overview
122
Precautions
122
Tools
122
Work Completion Check
123
Differences in Disassembling Procedures Concerning Models with or Without the Card Slot
124
Printer Mechanism
124
Waste Ink Pads
124
Stylus CX4100/CX4200/DX4200
124
Caution Regarding Assembling/Disassembling of the Printer Mechanism
125
Disassembly Procedures
126
Printer Section
127
Stacker Assy
128
Paper Support Assy
128
Scanner Unit
129
Panel Unit
130
Housing, Upper
131
PS Board Unit
137
Waste Ink Pads/Stacker Lock/Pg Lever/Rubber Feet
138
Main Board Unit/Card Slot Unit
141
ASF Unit
144
Holder Shaft Unit
146
Spur Gear 36.8/Extension Spring 0.143/Clutch
147
PE Sensor Board/Pe Sensor Lever
148
CR Guide Frame
149
CR Motor
150
PF Motor
151
Carriage Unit/Cr Encoder Board/Pw Sensor Board/Head FFC
152
Paper Guide Upper Unit
155
EJ Frame Unit
157
Ink System Unit
159
Paper Guide Front Unit
160
PG Sensor
161
PF Roller Unit
162
Scanner Section
163
Scanner Motor Unit/Scanner HP Sensor/Driven Pulley
166
Chapter 5 ADJUSTMENT
175
Usb ID
175
Adjustment by Using Adjustment Program
175
Ink Charge
176
PW Sensor Adjustment
177
Head Angular Adjustment
177
Bi-D Adjustment
178
Initialize PF Deterioration Offset
179
Disenable PF Deterioration Offset
179
CR Offset
179
Adjustment Except Adjustment Program
180
PG Adjustment
180
PF Scale Sensor Positioning Adjustment
183
Original Adjustment
184
Front Frame
192
Chapter 6 MAINTENANCE
192
Overview
192
Lubrication
192
Chapter 7 APPENDIX
194
Connector Summary
195
Major Component Unit
195
Exploded Diagram
201
Parts List
212
Electrical Circuits
216
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Epson Stylus DX4850 Specifications
General
Brand
Epson
Model
Stylus DX4850
Category
Printer
Language
English
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