Staple Operation; Stapler Unit - Canon Finisher-T1 Service Manual

Chapter 2

2.4 Staple Operation

2.4.1 Stapler Unit

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The staple motor (M111) 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 (IC108) 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 (M111) unless the staple
safety switch (MSW104) is ON. This assures safety in case where you happen to put your
finger in the stapler.
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