Paxar 9856 - Manual (Page 40)

7-2 Care and Maintenance
A d j u s t i n g t h e S u p p l y S e n s o r
To detect the label edge and/or black mark for all supply sizes, the supply
sensor is adjustable across half of the supply path. Adjust the position of
the supply sensor when changing from a wider to a narrower supply size.
This keeps the supply sensor positioned to detect the label edge.
Rotating the adjustment knob clockwise sets the sensor for wider supply. In
general, if you keep the knob in the full counterclockwise position, it
correctly senses supply. However, if you have a problem sensing Top Of
Form, try rotating this knob clockwise one-half turn at a time until the error
is eliminated.
CAUTION
Do not force or over-tighten this adjustment knob.
Sensor
Adjustment Knob