Service manual

M09416

Thermal Transfer Printer

J. Check the DC motor driver IC (U29) on the main board. If it can function all

right, please replace the main board.

Paper sensor error

Please check the following items:

A. Is label installed correctly? Please refer to previous 3. The LED is on with red

blinking – Label runs out to load a roll of label and then press the FEED button

to resume printing.

B. Is there any label stuck on the label sensor? Is there any pre-printed logo on

the label? Please refer to 4.3 Printer Initialization to reset the system.

If the pre-printed logo or text influences the auto gap calibration function, please

calibrate the gap sensor with proper sensitivity setting by try and error method.

Example:

C:\>COPY CON LPT1 <Enter>

SET GAP 1 <Ctrl> <Z>

Main board, gap sensor or black sensor failure.



If you confirm the main board is good, Please change the gap sensor receiver

first, because the receiver sensor failure rate is higher then the transmitter

sensor.

4. The printer setting runs error.

Printer setting runs error:

Refer to 4.3 Initialization to reset the system.

5. Continuous feeding labels

 The printer setting may go wrong. Please do “Printer Initialization” and “Gap

and Black Mark Sensor Calibration”. (Refer to 4.2 and 4.3).

6. No print on the label

 Is the label or ribbon loaded correctly? Refer to No, 3 Label runs out and

Ribbon runs out to load the paper or to load the ribbon.

 Does the ribbon run out?