Canon Finisher-R1, Service Manual

Page: 35 / 177

Chapter 2
2-11
2.4 Staple Operation
2.4.1 Stapler Unit
0003-4557
The staple motor (M41) is used to perform stapling operation. This motor rotates the cam one turn for stapling. The
home position of this cam is detected by the staple home position sensor (PI50).
The staple motor is rotated in the forward or reverse direction under the control of the macro computer (IC101) on
the finisher controller PCB.
When the staple home position sensor is OFF, the finisher controller PCB rotates the staple motor in the forward
direction until the sensor turns ON, allowing the staple cam to the original position.
The staple sensor (PI52) is used to detect presence/absence of a staple cartridge in the machine and presence/absence
of staples in the cartridge.
The staple edging sensor (PI51) is used to determine whether staples are pushed up to the top of the staple cartridge.
The finisher controller circuit does not drive the staple motor (M41) unless the staple safety switch (MS34) is ON.
This assures safety in case where you happen to put your finger in the stapler.
F-2-14
F-2-15
M41
Staple motor dr
iv
e signal
Stapler HP detect signal Hook top position detect signal
Hook empty detect signal
Finisher controller PCB