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440
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Epson 440 - Page 92
160 pages
Manual
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Chap
ter 3 Di
sas
sembly an
d
Ass
embl
y
Rev
. A
3-2
3
Carriage Assembly
BUSH, PARALLEL ADJUST, LEFT
BUSH, PARALLEL ADJUST, RIGHT
LEVER, PG, SUB
Spring Washer
(Convex side must be facing the bush)
SHAFT, CR, GUIDE
Figure
3-20
.
Carri
ag
e Assembly Remo
val
91
93
Table of Contents
Main Page
Chapter 1 Product Descriptions
7
Epson Stylus Color
1
Service Manual
1
Table of Contents
7
Features
8
Specifications
9
Printing Specification
9
Paper Specification
12
Cut Sheet
12
Envelope
12
Index Card
12
Transparency Film / Glossy Paper
12
Adjust Lever Settings (PG Adjust Lever)
13
Printable Area
14
Cut Sheet
14
Envelope
15
Environmental Condition
16
Ink Cartridge Specifications
17
Black Ink Cartridge
17
Color Ink Cartridge
18
Physical Specification
19
Acoustic Noise
20
CE Marking
20
Electric Specification
20
Reliability
20
Safety Approvals
20
Printer Language and Emulation
21
Interface
23
Parallel Interface (Forward Channel)
23
Parallel Interface (Reverse Channel)
24
Prevention Hosts from Data Transfer Time-Out
26
Serial Interface
27
Control Panel
28
Indicators
28
Panel Functions
29
Printer Condition and Panel Status
30
Error Status
31
Ink out
31
Paper out
31
Paper Jam
31
No Ink-Cartridge Error
32
Maintenance Request
32
Fatal Errors
32
Printer Initialization
33
Initialization Settings
33
Main Components
34
Printer Mechanism
34
C200 MAIN Board
35
C206 PSB/PSE Board
36
C206 PNL Board
36
Chapter 2 Operating Principles
37
Overview
38
Printer Mechanism
38
Printing Mechanism
39
Printing Method
41
Carriage Mechanism
44
Platen Gap Adjust Mechanism and Parallel Adjustment Mechanism
47
Paper Feed Mechanism and Pump Mechanism
48
Ink System
51
Pump, Carriage Lock, Head Cleaner Mechanism
52
Cap Mechanism
54
Electrical Circuit Operating Principles
55
C206 PSB/PSE Power Board
56
C200 Main Board
58
Reset Circuits
60
Sensor Circuits
61
EEPROM Control Circuits
62
DRAM Control
63
Timer Circuit
63
Print Head Control Circuit
64
Pf(Pump) Motor Drive Circuit
67
CR Motor Drive Circuit
68
Chapter 3 Disassembly and Assembly
69
Overview
70
Precautions for Disassembling the Printer
70
Specification for Screws
71
Tools
71
Work Completion Check
72
Disassembly and Assembly
73
Housing Removal
74
Circuit Boards Removal
75
Control Panel Removal
77
Waste Ink Pad Assembly Removal
78
Disassembling the Printer Mechanism
79
Printhead Removal
79
Pump Assembly and Cap Assembly Removal
81
CR Motor Assembly Removal
83
PF Motor Assembly Removal
85
ASF Assembly Removal
87
ASF Disassembly
89
Pick-Up Roller Assembly Removal
90
Carriage Assembly Removal
91
PF Roller Assembly Removal
93
PE Sensor Assembly Removal
95
HP Sensor Assembly Removal
96
Chapter 4 Adjustment
97
Overview
98
Required Adjustments
98
Tools Required for Adjustment
98
Adjustments
99
Paper Gap Adjustment
99
Adjustment Using Adjustment Program
101
Overview of Adjustment Program
101
Ink Charge Operation
102
VH Setting
104
Head Angular Adjustment
106
Bi-D Alignment Adjustment
108
Chapter 5 Troubleshooting
110
Troubleshooting
111
Unit Level Troubleshooting
113
Printer Does Not Operate at Power on
114
Error Is Detected
115
Failure Occurs During Printing
116
Printer Does Not Feed the Paper Correctly
117
Control Panel Operation Is Abnormal
118
Unit Repair C206 PSB/PSE Board
119
Unit Repair - C200 Main Board
121
Repair of the Printer Mechanism
123
Service Maintenance
127
Operator Panel
158
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