MASTER FEED
SM 6-51 C262/C265
Detailed
Descriptions
Master Clamping and Wrapping around the Drum
The master feed control motor turns on to feed out the master from the master
buffer duct. The master is fed out 46.5 mm and reaches the drum master clamper
[A]. The master feed control motor turns off temporarily.
The master clamper is closed and the drum starts turning to wrap the master
around the drum. At the same time, the master feed control motor turns on again to
feed the master, synchronizing it with the drum rotation.
When master making is complete and the master is stored in the master buffer duct,
the drum turns continuously to wrap the master. The cutter cuts the master when
there is no master left in the duct, and the master at the cutter is stretched tightly;
this ensures a clean cut.
A sheet of paper, called the trial print, is fed at the same time as the master
wrapping. To ensure that ink transfers to the master on the drum, the drum rotates
at its lowest speed (16 rpm). This ensures that the print run starts up with a
sufficient ink density.
The drum then returns to the home position, ready for printing.
C262D043.WMF
[A]
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