Cutter Mechanism - Ricoh C231 Service Manual

2.4.4 CUTTER MECHANISM

[E]
After the master making process finishes, the master feed motor turns off and the
cutter starts running to cut the master to the desired length.
The cutter motor [D] drives the screw shaft [A], moving the cutter holder [C]
backwards and forwards.
There are two cutter blades [B] in the holder. The master is cut while the cutter
holder [C] travels towards the rear (the non-operation side of the machine). The
cuter motor keeps turning in one direction. The cutter holder returns to the home
position when it reaches the rear end of the cutter unit and reverses direction
because of the two different spirals threaded on the screw shaft [A].
When the cutter holder reaches the home position, the holder activates the cutter
home position sensor (switch) [E] and the motor stops.
After the master cut operation, the drum starts turning again to wrap the remaining
part of the master around the drum. The leading edge of the master that was cut
remains at the cutting position, ready to make the next master.
SM
[C]
[D]
2-27
[A]
[B]
C231D573.WMF
MASTER FEED
C231/C237/C238