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TTP-248M Bar Code Printer
Service Manual
4.2 Replacing the Mainboard ................................................................................ 43
4.3 Replacing the Power Supply Unit .................................................................... 44
4.4 Replacing the Ribbon Rewind Spindle ............................................................ 45
4.5 Replacing Ribbon Supply Spindle ................................................................... 48
4.6 Replacing Label Supply Spindle ...................................................................... 50
4.7 Replacing Label Rewind Spindle ..................................................................... 52
4.8 Replacing Platen ............................................................................................. 54
4.9 Replacing Motor .............................................................................................. 56
4.10 Replacing Print Head .................................................................................... 58
4.11 Replacing Print Head Pressure Adjustment Knob ......................................... 59
4.12 Replacing Gap/Black Mark Sensor ............................................................... 61
4.14 Replacing Print Head Lift Lever Sensor ........................................................ 64
5. Troubleshooting ........................................................................................................ 65
5.1 Troubleshooting ............................................................................................... 65
5.2 Calibrate Gap/Black Mark Sensor ................................................................... 66
5.3 Self-test ........................................................................................................... 67
5.4 DRAM Clear .................................................................................................... 67
5.5 Diagnosis Operation Procedure ...................................................................... 67
5.6 Cleaning Print Head ........................................................................................ 68
Update History.............................................................................................................. 69