Adjustment Of The Contrast - Avery Dennison ALS 341 User Manual

Operators Manual
ALS 341
Figure 8 Adjustable dispensing edge
Adjustment dispensing edge
After loosening handles 1 and 2, handle Z can be turned to adjust the dispensing edge position.
Once the adjustment is completed, tighten the handles 1 and 2 again.
Printer adjustment
If your labeller is equipped with a printer, you can adjust the print position as well with the
handle Z . In this case loosen the orange printer handle and handle 1 before turning handle Z .
Once the adjustment is complete, tighten the handles again.

3.5 Adjustment of the contrast

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Remove a label from the backing paper and slide it inside the sensor.
•
Increase the value with the Contrast key until the LED switched on.
•
Press the contrast key until the LED switched off. If there are marks on the backing paper
do the measurement on this position.
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Note the value GAP xxx
•
Slide the backing paper including label inside the sensor. Use the lightest position on the
label for the adjustment.
•
Reduce with the contrast key the value until LED lights again. Note the second value GAP
yyy
•
Calculate the contrast value by the formula (xxx + yyy) / 2 and set it.
•
The adjustment is completed.
With a difference of less than 6 an operation with this kind of sensor is not possible (sometimes
two or more labels are dispensed).
Release 4/04 Page 16 Starting the labeller