1. Gap / black mark sensor calibration 
  Release           
2. Gap / black mark sensor calibration, 
Self-test and enter dump mode 
    Release         
3. Printer initialization 
      Release       
4. Set black mark sensor as media 
sensor and calibrate the black mark 
sensor 
        Release     
5. Set gap sensor 
calibrate the gap sensor 
         
Release   
6. Skip AUTO.BAS 
         
  Release 
 
4.3.1 Gap/Black Mark Sensor Calibration 
 
Gap/black mark sensor sensitivity should be calibrated at the following conditions: 
1. A brand new printer 
2. Change label stock 
3. Printer initialization 
 
Please follow the steps below to calibrate the ribbon and gap/black mark sensor. 
1. Turn off the power switch. 
2. Hold on the button then turn on the power switch. 
3. Release the button when LED becomes red and blinking. (Any red will do during the 5 blinks). 
 
  It will calibrate the ribbon sensor and gap/black mark sensor sensitivity. 
  The LED color will be changed as following order: 
Amber  red (5 blinks)  amber (5 blinks)  green (5 blinks)  green/amber (5 blinks) 
 red/amber (5 blinks)  solid green 
 
Note:   
Please select gap or black mark sensor by sending GAP or BLINE command to printer prior to 
calibrate the sensor. 
For more information about GAP and BLINE command, please refer to TSPL/TSPL2 programming 
manual.