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TM-U200 Series
Epson TM-U200 Series Technical Manual
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Rev. A
Di
sassembly, Assembly, and Adjustment
5-23
TM-U200 Series (Type A/
AM) Technical Manual
Co
nf
i
d
en
t
i
al
Main Assembly 8
Carriage guide shaft assembly
1.
Insert
the carriage g
uide shaft th
rough the ba
se frame assembly
and carriage su
b assembly
and lo
ck it w
ith
the R
E.
Carriag
e guide shaft
Base frame
assembly
RE (2.3)
Carriage sub assem
bly
132
134
Table of Contents
Default Chapter
1
Technical Manual
1
Fcc Compliance Statement
3
Table of Contents
7
Chapter 1 Features and General Specifications
11
Features
12
Printing Specifications
12
Character Specifications
14
Paper
15
Auto Cutter
16
Paper Roll Supply Device
16
Take-Up Device
16
Receive Buffer
16
Electrical Specifications
17
Ribbon Cassette
17
External Dimensions and Weight
18
Environmental Specifications
18
Reliability
19
Safety Standards (EMC Measured Using Seiko Epson's AC Adapter )
19
Printer Installation Position
20
Hardware Configuration
21
Main Unit Specifications
22
Paper Feed Motor
22
Carriage Motor
22
Print Head Unit
22
Home Position Sensor
22
Paper End Detector
23
Paper Roll Near-End Detector (Optional)
23
Connectors
24
Interface Connector
24
Power Supply Connector
24
Drawer Kick-Out Connector
25
Interface
27
RS-232 Serial Interface
27
Serial Interface (Option)
30
IEEE 1284 Parallel Interface
30
Buttons and Switches
34
Power Switch
34
Panel Button
34
DIP Switches
34
Panel Leds
37
Self-Test
38
Error Processing
39
Printer Operation When an Error Occurs
39
Data Receive Error
39
Buffer Full Printing
39
Detectors and Printing
39
Hexadecimal Dump
40
Performing a Hexadecimal Dump
40
Options
41
External Power Supply PS-170
42
Chapter 2 Mechanism Configuration and Operating Principles
43
Printer Mechanism Operating Principles
43
Print Mechanism Unit
44
Print Head Unit Movement
45
Wire Movement When a Single Dot Is Printed
45
Printing a Character (9X9 Font)
46
Paper Feed Mechanism Unit
47
Paper Loading (Semi-Automatic Loading)
48
Paper Feeding
48
Ribbon Feed Mechanism Unit
49
Ribbon Feeding
50
Detection Mechanism Unit
51
Home Position Detection Mechanism
51
Paper Detection Mechanism
52
Paper Roll Near-End Detection Mechanism (Optional)
52
Auto-Cutter Mechanism
52
Ribbon Switch Mechanism Unit
53
Switching from Black to Red
53
Releasing from Red to Black
54
Paper Take-Up Mechanism Unit
55
Electrical Circuitry Operating Principles
56
Hardware Configuration
56
Principles of Operation
59
Power Supply Circuitry
59
Control Circuitry
60
Reset Circuit
60
Cpu
61
Various Detector Circuits
66
Host Interface Circuit
66
Drawer Kick-Out Drive Circuit
67
DIP Switch Read Circuit
68
Printer Mechanism Driver Circuits
69
Print Head Driver Circuit
69
Paper Feed Motor Driver Circuit
70
Carriage Motor Driver Circuit
70
Auto-Cutter Driver Circuit
71
Chapter 3 Handling and Maintenance
73
Handling Precautions
73
Storage Precautions
73
Use Precautions
73
Paper Handling Precautions
73
Ribbon Cassette Handling Precautions
74
Replacing the Paper Roll
75
Replacing the Ribbon Cassette
80
Removing Jammed Paper
82
Using the Power Switch Cover
85
Inspection and Maintenance
86
Maintenance Procedures
86
Cleaning
87
Lubricants
88
Standard Lubrication
88
Lubrication Points
88
Tool List
90
Chapter 4 Troubleshooting
91
Self-Test
91
Initiating the Self-Test
91
Self-Test Standby
91
Ending the Self-Test
91
Troubleshooting Flowchart
92
Data from Host Is Not Printed Normally
99
Troubleshooting Tables
100
Error Types and Countermeasures
106
Chapter 5 Disassembly, Assembly, and Adjustment
111
Small Part Specifications
111
Disassembly
112
Removing the Fuse
112
Removing the Print Head Unit
112
Removing the Auto-Cutter
115
Removing the Main Circuit Board Assembly
116
Sub-Assembly a
119
Paper Feed Frame Unit Assembly
119
Main Assembly 1
125
Ribbon Switch Lever, Ribbon Release Spring, Ribbon Release Lever, Ribbon Intermediate Gear, Ribbon Transmission Gear, Ribbon Take-Up Assembly, and Ribbon Drive Plate Assembly
125
Main Assembly 2
127
Tension Plate Assembly
127
Main Assembly 3
128
Paper Feed Frame Assembly
128
Main Assembly 4
129
Carriage Motor Assembly
129
Main Assembly 5
130
Carriage Sub Assembly
130
Main Assembly 6
131
Carriage Shaft Assembly
131
Main Assembly 7
132
Adjustment Roller Shaft Holder Assembly
132
Main Assembly 8
133
Carriage Guide Shaft Assembly
133
Main Assembly 9
134
Belt Tension Spring Assembly
134
Main Assembly 10
135
Sensor Assembly
135
Main Assembly 11
136
Carriage Motor Heat Sink Assembly
136
Main Assembly 12
137
Print Head FPC Assembly
137
Main Assembly 13
139
Print Head Unit
139
Main Assembly 14
140
Left Cover Fixing Plate and Right Cover Fixing Plate
140
Main Assembly 15
141
Ribbon Frame Earth Plate
141
Main Assembly 16
142
Ribbon Frame Assembly, Ribbon Frame Spring, and Ribbon Frame Fixing Plate
142
Main Assembly 17
143
Thumb-Screw and Head Cover
143
Main Assembly 1 (Case Unit)
144
Lower Cutter Plate Assembly
144
Main Assembly 2 (Case Unit)
145
Upper Plate Assembly
145
Main Assembly 3 (Case Unit)
147
Main Circuit Board Assembly
147
Main Assembly 4 (Case Unit)
148
Inserting the Cables
148
Main Assembly 5 (Case Unit)
149
Lower Case Assembly
149
Main Assembly 6 (Case Unit)
150
Manual Cutter Assembly, Take-Up Belt and Auto-Cutter Fixing Plate
150
Main Assembly 7 (Case Unit)
153
Auto-Cutter Assembly
153
Main Assembly 8 (Case Unit)
157
Paper Roll Receive Rollers, Upper Case, Guide Roller, and Switch Panel Assemblies
157
Main Assembly 9 (Case Unit)
159
Interface Circuit Board Assembly and Connector Plate
159
Main Assembly 10 (Case Unit)
161
Lower Plate, ROM Cover, and Rubber Foot Assembly
161
Main Assembly 11 (Case Unit)
162
Take-Up Flange, Take-Up Flapper Spring and Take-Up Flaps Assemblies
162
Main Assembly 13 (Case Unit)
163
Main Cover Assembly
163
Main Assembly 14 (Case Unit)
164
Near-End Detector Assembly (Optional)
164
Adjustment
166
Platen Gap Adjustment
166
Appendix
167
RS-485 Serial Interface
167
Main Circuit Board Parts Layout
172
RS-232 Serial Interface Circuit Board Parts Layout
173
IEEE 1284 Parallel Interface Circuit Board Parts Layout
174
RS-485 Serial Interface Circuit Board Parts Layout
175
Main Circuit Board Diagram
177
RS-232 Serial Interface Circuit Board Diagram
178
UB-P01 IEEE 1284 Parallel Interface Circuit Board Diagram
179
UB-P02 IEEE 1284 Parallel Interface Circuit Board Diagram
180
RS-485 Serial Interface Circuit Board Diagram
181
Case Unit Overall Exploded Diagram
182
Printer Mechanism Unit Overall Exploded Diagram
183
Case Unit Lubrication Points Diagram
184
Printer Mechanism Unit Lubrication Points Diagram
185
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Epson TM-U200 Series Specifications
General
Brand
Epson
Model
TM-U200 Series
Category
Printer
Language
English
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