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4.3 Gap/Black Mark 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 sensor.
1. Turn the printer power off.
2. Press and hold the FEED button then turn on the printer.
3. The LED will turn orange, blink red 5 times and then blink orange 5 times.
Release after the first orange blink and before the 5
th
orange blink.
Calibrating the gap/black mark sensor will measure the label length, print the
internal configuration and then enter dump mode.
The self-test printout can be used to check for dot damage on the print head
and can be used to check printer configurations and available memory space.
Turn the printer off and back on to resume normal printing.
Figure 10: Self-test printout
Print head check pattern
Firmware version
Firmware checksum
Printed mileage (meter)
Serial port configuration
Country code
Print speed (inch/sec)
Print darkness
Label size (inch)
Gap distance (inch)
Gap/black mark sensor sensitivity
Numbers of download files
Total & available memory space