Contents
1. FUNDAMENTAL OF THE SYSTEM ................................2
1.1 Overview ......................................................................................................... 2
2. ELECTRONICS ..............................................4
2.1 Summary of Board Connectors ..................................................................... 4
3. MECHANISM ............................................... 11
3.1 Replacing the Platen Roller Assembly ........................................................ 11
3.2 Replacing the Linerless Platen Roller Assembly ........................................ 12
3.3 Replacing the 1" / 2" paper core adapter ..................................................... 13
3.4 Replacing the NFC module .......................................................................... 15
3.5 Replacing the LED & Keys Panel Board ...................................................... 17
3.6 Replacing the Gear Assembly & Stepping Motor ........................................ 20
3.7 Replacing the Wi-Fi/Bluetooth Module ........................................................ 21
3.8 Replacing the Main Board Assembly........................................................... 22
3.9 Replacing the Print Head Assemble ............................................................ 24
3.10 Replacing the Hand Open Sensor Assemble .............................................. 26
3.11 Replacing the Black Mark Sensor Assembly .............................................. 27
4. TROUBLESHOOTING ........................................ 28
4.1 Common Problems....................................................................................... 28
5. MAINTENANCE ............................................. 30
Revise History ................................................ 31