4.  Refer to chapter 3.3.1 to install the 
label. Use “Diagnostic Tool” to set 
the media sensor type and calibrate 
the selected sensor. 
 
Note: 
Please calibrate the gap/black mark sensor when changing media. 
 
4. LED and Button Functions 
This printer has one button and one three-color LED indicator. By indicating the LED with 
different color and pressing the button, printer can feed labels, pause the printing job, select 
and calibrate the media sensor, print printer self-test report, reset printer to defaults 
(initialization). Please refer to the button operation below for different functions.