Canon J1, Service Manual

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Technology > Staple Operation > Stapler Unit > Stapler
Technology > Staple Operation > Stapler Unit > Stapler
Staple Operation
Overview
This product is equipped with two Staplers.
While the Stapler unit of the Finisher unit provides 1-point front stapling, 1-point rear stapling,
and 2-point stapling, the Stitcher unit of the Saddle Stitcher unit
provides 2-point center stapling.
Stapler unit
Stitcher unit
(fromt,rear)
）
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Stapler Unit
■
Stapler
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 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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