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Engine Service Manual
TABLE OF CONTENT
1. FUNDAMENTAL OF THE SYSTEM .......................................................................... 1
1.1. Print Engine Orientation ........................................................................................ 1
1.2. Overview ................................................................................................................. 2
2. ELECTRONICS .......................................................................................................... 5
2.1 Summary of Board Connectors ............................................................................. 5
2.2 Interface Pin Configuration .................................................................................... 7
3. MECHANISM ............................................................................................................. 9
3.1 Replacing the Platen Roller Assembly .................................................................. 9
3.2 Replacing the Print head Assembly .................................................................... 10
3.3 Remove the Electronics Cover ............................................................................ 13
3.4 Replacing the Power Supply Unit ........................................................................ 14
3.5 Replacing Multi-interface (GPIO & parallel) Board ............................................ 16
3.6 Replacing the Main Board .................................................................................... 19
3.7 Replacing the Gap/Black Mark Sensor Module .................................................. 20
3.8 Replacing the Panel Control Board & LCD Panel .............................................. 22
3.9 Replacing the Bluetooth Module & Wi-Fi Module .............................................. 24
3.10 Replacing the Stepping Motor Assembly ......................................................... 25
3.11 Replacing the Peel-off Roller Module ................................................................ 26
4. TROUBLESHOOTING ............................................................................................. 31
4.1 Common Problems ............................................................................................... 31
4.2 Mechanism Fine Adjustment to Avoid Ribbon Wrinkles ................................... 35
4.3 Adjusting Heater Line ........................................................................................... 37
5. MAINTENANCE ....................................................................................................... 42
UPDATE HISTORY ...................................................................................................... 44
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