Paxar 9662 User Manual page 35

Calibration for Dispenser Sensor
If you find the sensor is not so sensitive or mis –detection you can send
two commands to calibrate it.
Command ASCII
Set sensor without label <ESC>$R0
Set sensor with label <ESC>$R1
Step 1. Put the label away from the sensor, send command 0 and wait
for 2 more seconds.
Step 2. Put a label under the sensor (10 mm below), hold it, send
command 1 and wait for 2 more seconds.
67
Binary Remark33 33
1BH 24H 52H 30H Command 0
1BH 24H 52H 31H Command 1