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TTP-245 / TTP-343
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1. FUNDAMENTAL OF THE SYSTEM ........................................................................ 1
1.1. Overview .................................................................................................................. 1
1.1.1. Front View ..................................................................................................... 1
1.1.2. Rear View ...................................................................................................... 2
1.2. Specification ............................................................................................................. 2
1.2.1. Printer ............................................................................................................ 2
1.2.2. LED ............................................................................................................... 4
1.2.3. Button ............................................................................................................ 4
1.3. Supply Specification ................................................................................................. 7
1.3.1. Paper .............................................................................................................. 7
1.3.2. Ribbon ........................................................................................................... 7
2. ELECTRONICS ........................................................................................................ 8
2.1. Circuit Description .................................................................................................... 8
2.2. MCU Circuit and MCU PIN Description..................................................................10
2.2.1. MCU PIN Description: .................................................................................. 11
2.3. Reset Circuit ............................................................................................................16
2.4. Memory Circuit .......................................................................................................17
2.5. Decoder Circuit ........................................................................................................18
2.6. Memory Map ...........................................................................................................19
2.7. Print Head Circuit ....................................................................................................21
2.8. Stepping Motor Drive / Protection Circuit ................................................................22
2.9. Power Circuit ...........................................................................................................24
2.10. Parallel Interface Circuit ........................................................................................25
2.11. Serial Interface Circuit ...........................................................................................27
2.12. USB Circuit ...........................................................................................................28
2.12.1. USB PIN Function ......................................................................................29
2.13. Sensor Circuit ........................................................................................................31
2.13.1. Gap and Black Mark Sensor ........................................................................31
2.13.2. Head Open Micro Switch ............................................................................32
2.13.3. Peel-off Sensor ............................................................................................33
2.13.4. Ribbon Sensor .............................................................................................34
2.14. Cutter Drive / Protection Circuit .............................................................................35
2.15. DC Motor Driver / Encoder Circuit ........................................................................36
2.16. Summary of PCB connectors .................................................................................37
3. REPLACE IMPORTANT PARTS ........................................................................... 40
3.1. Replacing Top Cover................................................................................................40
3.2. Replacing Top Inner Cover ......................................................................................42
3.3. Replacing Lower Cover ...........................................................................................44
3.4. Replacing Main Board .............................................................................................45
Содержание TTP-245 series
Страница 1: ...SERVICE MANUAL TTP 245 343 THERMAL TRANSFER DIRECT THERMAL BAR CODE PRINTER ...
Страница 14: ...TTP 245 TTP 343 10 2 2 MCU Circuit and MCU PIN Description Fig 2 2 MCU PIN Description Diagram ...
Страница 15: ...TTP 245 TTP 343 11 2 2 1 MCU PIN Description ...
Страница 16: ...TTP 245 TTP 343 12 ...
Страница 17: ...TTP 245 TTP 343 13 ...
Страница 18: ...TTP 245 TTP 343 14 ...
Страница 19: ...TTP 245 TTP 343 15 ...
Страница 22: ...TTP 245 TTP 343 18 2 5 Decoder Circuit Fig 2 5 Decode Circuit Diagram ...
Страница 32: ...TTP 245 TTP 343 28 2 12 USB Circuit Fig 2 12 USB Circuit Diagram ...
Страница 33: ...TTP 245 TTP 343 29 2 12 1 USB PIN Function The standard USB 1 1 PIN function is as following ...
Страница 34: ...TTP 245 TTP 343 30 ...
Страница 43: ...TTP 245 TTP 343 39 Bottom side of PCB JP6 Memory card connector JP4 U14 Cutter driver chip ...
Страница 47: ...TTP 245 TTP 343 43 4 Replace the top inner cover 5 Reassemble in reverse procedures ...
Страница 58: ...TTP 245 TTP 343 54 4 Reassemble parts in reverse procedures Screws Head Open Micro Switch ...
Страница 60: ...TTP 245 TTP 343 56 Screws Ribbon Sensor Top inner cover ...
Страница 90: ...TTP 245 TTP 343 86 9 1 Cover drawing ...
Страница 92: ...TTP 245 TTP 343 88 9 2 Main Board drawing ...
Страница 95: ...TTP 245 TTP 343 91 9 3 Top Inner Cover drawing ...
Страница 97: ...TTP 245 TTP 343 93 9 4 Ribbon Mechanism Assembly drawing ...
Страница 99: ...TTP 245 TTP 343 95 9 5 1 Lower Inner Cover drawing ...
Страница 101: ...TTP 245 TTP 343 97 9 5 2 Lower Inner Cover drawing ...
Страница 103: ...TTP 245 TTP 343 99 9 6 Stepping Motor Assembly drawing ...
Страница 106: ...TTP 245 TTP 343 102 9 7 Option and accessories drawing ...