Genicom 3600 - Manual (Page 63)

c 39 frank Testing and Adjusting
3-19
3
Adjusting the Label Gap Sensor
The label gap sensor output enables the software to determine the leading edge
of a label by detecting the label gap. The label gap is the space between labels
on the backing material. This reading enables the printer to properly position
the start of print point. To perform this procedure, you need the following
tools:
•
Digital multimeter
•
#2 Phillips screwdriver
•
Small straight-slot screwdriver
To adjust the label gap sensor potentiometer
1. Remove the media cover and the electronics cover.
2. Connect the positive lead of a multimeter to TP15 (GAP) and the negative
lead to TP14 (GND) on the main PCB.
3600M.036
TP15
TP14
R124
3. Switch on the printer power.
4. Insert the label backing only in the label gap sensor. Adjust R124 on the
main PCB so that the voltage at TP15 (GAP) is 1V
±
0.2V.
5. Insert both the label and the label backing in the sensor. Verify that the
voltage at TP15 (GAP) is greater than 3V.
6. Install the printer electronics cover and the media cover.
7. Check the printer for proper operation.