Service manual
Table Of Contents
- Revision Table
- Introduction
- Chapter 1
- Features and General Specifications
- Chapter 2
- Mechanism Configuration and Operating Principles
- Printer Mechanism Operating Principles
- Print mechanism unit
- Print head unit movement
- Wire movement when a single dot is printed
- Printing a character (9x9 font)
- Paper Feed Mechanism Unit
- Paper loading (semi-automatic loading)
- Paper feeding
- Ribbon Feed Mechanism Unit
- Ribbon feeding
- Detection Mechanism Unit
- Home position detection mechanism
- Paper detection mechanism
- Paper roll near-end detection mechanism (optional)
- Auto-cutter mechanism
- Ribbon Switch Mechanism Unit
- Electrical Circuitry Operating Principles
- Principles of Operation
- Printer Mechanism Driver Circuits
- Printer Mechanism Operating Principles
- Chapter 3
- Handling and Maintenance
- Chapter 4
- Troubleshooting
- Chapter 5
- Disassembly, Assembly, and Adjustment
- Small Part Specifications
- Disassembly
- Sub-assembly A
- Main Assembly 1
- Main Assembly 2
- Main Assembly 3
- Main Assembly 4
- Main Assembly 5
- Main Assembly 6
- Main Assembly 7
- Main Assembly 8
- Main Assembly 9
- Main Assembly 10
- Main Assembly 11
- Main Assembly 12
- Main Assembly 13
- Main assembly 14
- Main Assembly 15
- Main Assembly 16
- Main Assembly 17
- Main Assembly 1 (Case Unit)
- Main Assembly 2 (Case Unit)
- Main Assembly 3 (Case Unit)
- Main Assembly 4 (Case Unit)
- Main Assembly 5 (Case Unit)
- Main Assembly 6 (Case Unit)
- Main Assembly 7 (Case Unit)
- Main Assembly 8 (Case Unit)
- Main Assembly 9 (Case Unit)
- Main Assembly 10 (Case Unit)
- Main Assembly 11 (Case Unit)
- Main Assembly 12 (Case Unit)
- Adjustment
- Appendix
- Appendix
- Addendum 1
- Main Circuit Board Types and Maintenance
- Addendum 2
- Lower Plate Change and ROM Spacer Abolition
- Addendum 3
- Auto-Cutter Release Tab Change

Rev. B Features and General Specifications 1-3
TM-U200 Series (Type B) Service Manual
Confidential
Character dimensions, characters per inch, characters per line
NOTE: The default font is 7 x 9; the dot spacing between characters is either 3 half dots or 2 half dots, depending on
the setting of DIP switch 2-1.
Character Specifications
Character Structure
Horizontal x Vertical
Character
Structure
Character Set
Character
Dimensions
WxH
Dot Spacing
Between
Characters
Characters Per
Line (cpl)
Characters Per
Inch (cpi)
7 x 9 ANK 1.2 x 3.1 mm
(.047 x .122")
3 half dots 40 16
Graphics 1.7 x 3.1 mm
(.070 x .122")
04016
9 x 9 ANK 1.6 x 3.1 mm
(.063 x .122")
3 half dots 33 13.3
Graphics 2.0 x 3.1 mm
(.079 x .122")
0 33 13.3
7 x 9 ANK 1.2 x 3.1 mm
(.047 x .122")
2 half dots 42 17.8
Graphics 1.6 x 3.1 mm
(.063 x .122")
0 42 17.8
9 x 9 ANK 1.6 x 3.1 mm
(.063 x .122")
2 half dots 35 14.5
Graphics 1.9 x 3.1 mm
(.075 x .122")
0 35 14.5
Character sets:
Alphanumeric: 95
International: 32
Graphics: 128 x 8 pages
Character structure:
7 x 9 with 400 half-dot positions per line
9 x 9 with 400 half-dot positions per line
Figure 1-3 Character size (7 x 9 font example)
3.1 mm
(0.122")
2.4 mm
(0.094")
1.24 mm (0.049")
1.59 mm (0.063")
0.159 mm (0.006")
0.353 mm
(0.014")