Polaroid P420T

 It will calibrate the ribbon sensor and gap/black mark sensor sensitivity.
 The LED color will change according to the 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
calibrating thesensor. For more information about GAP and BLINE command, please refer to
TSPL2 programming manual.
4.3.2 Gap/Black Mark Calibration, Self-test and Dump Mode
While calibrating the gap/black mark sensor, printer will measure the label‘s length, print the
internal configuration (self-test) on label and then, enter the dump mode. To calibrate gap or
black mark sensor, it depends on the sensor setting from the last print job.
Please follow the steps below to calibrate the sensor:
1. Switch off the printer
2. Press the button while you switch on the printer
3. Release the button when LED becomes amber and blinking.
 The LED color will change according to the following order:
Amber  red (5 blinks)  amber (5 blinks)  green (5 blinks)  green/amber (5 blinks)
 red/amber (5 blinks)  solid green
4. Printer will calibrate the sensor, measure the label‘s length, print internal settings, and then
enter the dump mode.
Note:
Please select gap or black mark sensor by Diagnostic Tool or by GAP or BLINE command prior to
calibrate the sensor. For more information about GAP and BLINE command, please refer to TSPL2
programming manual.
25