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4.3.2 Gap/black mark sensor detection, printing self-test value and entering the
debugging mode
This test aims to determine the sensitivity of the label paper sensor after the printer is turned on.
When the user installs a new paper roll of a different specification or initializes the printer and
restores it to the factory default value, the label paper gap sensor needs to be re-measured. The
gap detection or black line mark calibration will be completed with your last set value as the
reference value. The default value of this printer sensor is set to gap calibration.
Please follow the steps below to calibrate the label paper by the sensor:
1. Make sure that the label paper is properly installed
2. Turn off the printer
3. Turn on the printer while holding down the feed button
4.
When the indicator light flashes purple after the first purple, release the feed button
Indicator color cycle mode:
Purple Blue Red (flash 5 times) Purple (flash 5 times) Blue (flash 5 times) Blue (fixed)
5. The sensor will calibrate the label paper and the printer will print out the self-test value, and
finally enter the debugging mode and print out the value
6. Turn the machine off and on again to return the printer to the normal printing mode
Note
:
Before carrying out the label paper sensor calibration, first confirm the type of label to be detected
with
Diagnostic Tool
or
GAP/BLINE
commands. For more information on
GAP
and
BLINE
commands, please refer to the
TSPL2 programming manual