Ricoh Gestetner 5450, Service Manual, Page: 57 / 315

1 July, 1998 MASTER FEED
2-29
Detailed
Descriptions
Master Buffer Duct Entrance Control
While the master is being
transported to the master
feed control roller [A], the
duct entrance solenoid [C]
closes the master buffer
duct entrance plate [B]. This
prevents the duct entrance
from catching the leading
edge of the master.
After the master feed
control roller [A] catches the
master leading edge, the
entrance plate is opened.
(The normal position of the
entrance plate is open.)
Master End Detection
There is a solid-fill black area at
the end of the master roll. When
the master end sensor [D]
detects this area, the operation
panel displays the master end
message.
As the master is semi-
transparent, the sensor can
detect the black area at the end
of the roll when there are still a
few layers of clear master on the
roll. When this happens, master
roll near-end is detected.
C229D004.WMF
C229D104.WMF
[A]
[C]
[B]
[D]
Rear
Front