Contents
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 ................................................................................................. 3
1.2.1. Printer (TTP-245 Plus / TTP-343 Plus) .............................................................. 3
1.2.2. Printer (TTP-247 / TTP-345) ............................................................................. 6
1.2.3. LED .................................................................................................................. 10
1.2.4. Button ............................................................................................................... 10
1.3. Supply Specification .................................................................................. 14
1.3.1. Paper ................................................................................................................. 14
1.3.2. Ribbon .............................................................................................................. 14
2. ELECTRONICS .................................................................................. 15
2.1 Summary of Board Connectors ................................................................. 15
2.2 Pin Configuration ........................................................................................ 19
3. REPLACE IMPORTANT PARTS ........................................................ 21
3.1. Replacing Top Cover .................................................................................. 21
3.2. Replacing Top Inner Cover ........................................................................ 23
3.3. Replacing Lower Cover ............................................................................. 25
3.4. Replacing Main Board ................................................................................ 26
3.5. Replacing Platen Assembly ....................................................................... 27
3.6. Replacing the Stepping Motor Bracket / Metal Assembly and Stepping
Motor .................................................................................................................. 28
3.7. Replacing Label Guide & Gap Sensor Assembly .................................... 30
3.8. Replacing Black Mark Sensor Assembly ................................................. 32
3.9. Replacing Print Head Assembly................................................................ 33
3.10. Replacing Head Open Micro Switch ....................................................... 34
3.11. Replacing Ribbon Motor and Ribbon Sensor ........................................ 36
3.12. Replacing Feed Button and Feed Button PCB ....................................... 38
3.13. Install SD Memory Card ........................................................................... 39
3.14. Install Peel off Module (Option) ............................................................... 41
3.15. Loading the Label in Peel-off Mode ........................................................ 43
3.16. Install Cutter Module (Option) ................................................................. 45
3.17. Loading Label in Cutter Mode ................................................................. 49
3.18. Internal Ethernet Interface Installation (Option) .................................... 50
4. Power on Utilities .............................................................................. 52
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