3) Double sheet detector, feeder board
A. Mechanical type double sheet detector
When a double sheet is fed, the stop finger will rise
and stop the paper on the feeder board.
B. Board tape
These carry the paper sent out by the pull-out rollers
to the stop finger.
C. Skid roller
This is set
on
the board tape, and prevents bounce
back when a sheet
of
paper contacts the stop finger.
D. Retainer
This keeps the paper
on
the feeder board flat so that
it does not curl or float up from the feeder board.
E. Paper feed sensor
This detects the paper feed timing to prevent a paper
feed
jam
from occurring and it also controls the plate
cylinder and blanket cylinder ON/OFF.
F.
Chapter 2 Names and Functions
Plate holding guide
The plate tail edge is put on this, after the plate
leading edge
is
inserted into the leading edge clamp.
G
.••
Plate tail edge stopper
For using polyester plate, the plate tail edge is put
on this so that the plate is properly tensioned. This
increases the plate mounting accuracy.
Introduction Edition- 29
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