Watkiss Vario, Operating Manual

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turn should reduce errors during the job. The default value
is 186.2mm (7.35") during the test set, thereafter the feed
length is automatically set to suit the paper size.
AUTO:
Touch
AUTO
to set the clutch feed length to the
default value of 186.2mm (7.35").
SHORT: SHORT
will decrease the clutch feed length dur-
ing the test set to 121mm (4.8"), which is ideal for A5 or
5.5 x 8.5" landscape or similar.
SUCTION HOLD
Increasing the
SUCTION HOLD
value causes the feeder
to allow more time to pick up each sheet. If you are using
stock that tends to stick together, increasing the suction
hold can improve paper pick-up and in some instances,
separation.
It is possible to reduce the suction hold when using paper
that is easy to feed: this will increase the operating speed
of the machine. The default setting is 300mS.