HEIDELBERG Speedmaster CD 102, Руководство пользователя, Страница: 112 / 170

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C.1.74
20 Adjustment information for special printing material
20.1 Special printing material ...
... requires special settings of the press.
This chapter gives you some information about print-
ing on special printing material. The sheet travel de-
pends on a large number of factors. Thus, we can
give you only adjustment recommendations here.
The fine correction of the recommended values must
be determined during operation.
20.2 Book paper
Book paper is a wood-free or slightly woodpulp print-
ing material. Its high volume and a light coloring are
typical for this printing material.
When processing this printing material you must
chiefly take the porosity into account.
Suction head
1. Install the form-B tissue paper suckers on the
lifting suckers.
2. Adjust the sucking level of the lifting suckers
such that the tissue paper sucker touch the un-
fanned pile.
3. Insert the form-A sheet separator fingers into
the supports on the suction head.
D
Sheet separator fingers that protrude too
far into the pile tear the sucked-on sheet
off the lifting suckers.
D
Sheet separator fingers that reach not far
enough into the pile favor the formation of
double sheets.
4. Reduce the suction air on the suction head as
required.
Note
Reducing the suction air too much re-
sults in sheet loss on the lifting suck-
ers.
Suction tape
In most cases, the suction air at the suction tape
must be reduced significantly.
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