8 Technical appendix
8.1 Adjusting the predispensing
Predispensing is the length by which the label is pulled forward after detection of the leading edge of
the label. Its value can be entered in 0.1 mm steps. The predispensing is normally used to optimize
the label position. Adjust it so, that the label is sticked to the goods at the time, when it has the same
speed as the goods. Only so the label position on the goods is always exact and does not vary.
If a new value is entered exceeding the old one, the label is pulled forward correspondingly.
But if the new value exceeds the old one, predispensing will be corrected only after one label has be-
en dispensed.
If the entered predispensing length exceeds the label length, a malfunction of the labeller may result
since the gap between labels is measured at a wrong time.
The minimum predispensing depends on the maximum labelling speed. The labeller needs more time
at high labelling speed to brake the label after having detected its leading edge. The following diagram
shows predispensing vs. labelling speed:
Predispensing [mm]
Labelling speed [m/min]
Diagram predispensing vs. labelling speed.
C9100
C8600
0 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
15
14
13
12
11
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9
8
7
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5
4
3
2
1
0
5999.530-01E 14.01.2004 CSWM 4 42
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