Detecting Jams (Saddle Stitcher Unit) - Canon J1 Service Manual

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Technology > Detecting Jams > Detecting Jams (Saddle Stitcher Unit)

Detecting Jams (Saddle Stitcher Unit)

The saddle stitcher unit identifies any of the following conditions as a jam, and sends the jam
signal to the host machine.
In response, the host machine may stop copying operation and indicate the presence of a
jam on its control panel.
When all doors are closed after the user has removed the jam, the saddle stitcher unit checks
whether the vertical path paper sensor (PI17) has detected the presence of paper.
If the sensor has detected paper, the unit will identify the condition as being faulty jam
removal and send the jam signal to the host machine once again.
PI11
No.
PI8 Paper positioning plate paper sensor
PI11 Delivery sensor
PI17 Vertical path paper sensor
PI18 No.1 paper sensor
PI19 No.2 paper sensor
PI20 No.3 paper sensor
PI22 Saddle inlet sensor
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Technology > Detecting Jams > Detecting Jams (Saddle Stitcher Unit)
PI22
PI18
PI19
PI20
PI17
PI15
PI14
PI8
F-2-82
Sensor
Jam Type Sensor
Inlet delay PI22 When the saddle inlet sensor (PI22) does not detect paper after a prescribed
time (distance) has elapsed since receiving a saddle delivery request from
the Finisher.
Inlet PI22 When paper does not exit the saddle inlet sensor (PI22) after feeding for
a prescribed amount with the feed motor (M1) after the saddle inlet sensor
stationary
(PI22) detected the leading edge of the paper.
Feeding PI18 When the 1st paper sensor (PI18) does not detect paper after prescribed
time (distance) has elapsed since the saddle inlet sensor (PI22) detected the
delay
leading edge of the paper.
Feeding PI18 When paper does not exit the 1st paper sensor (PI18), 2nd paper sensor
(PI19), and 3rd paper sensor (PI20) after feeding for a prescribed amount
stationary PI19
with the feed motor (M1) after the 1st paper sensor (PI18) has detected the
PI20
leading edge of the paper.
Delivery PI11 When delivery sensor (PI11) cannot detect the paper after feeding the stack
for a prescribed amount with the paper folding motor (M2) after completing
delay
paper pushing motion with the paper pushing plate.
Delivery PI11 When stack does not exit the delivery sensor (PI11) after feeding the stack
for a prescribed amount with the paper folding motor (M2) after detecting the
stationary PI17
leading edge of the paper with the delivery sensor (PI11).
When stack does not exit the vertical path paper sensor (PI17) after feeding
the stack for a prescribed amount with the paper folding motor (M2) after
detecting the stack with the delivery sensor (PI11).
Stitcher SW7 When stitch motors (M7/M6) are rotated forward and the stitch home position
sensors (SW7/SW5) do not turn ON within 0.4 seconds after they are turned
staple SW5
OFF and the motors are rotated backward and the sensors turn ON within 0.4
seconds.
Power-on PI8 When paper is detected by one of the sensor on the paper sensor PCB (1st
paper sensor (PI18), 2nd paper sensor (PI19), 3rd paper sensor (PI20)),
PI11
vertical path paper sensor (PI17), delivery sensor (PI11), paper positioning
PI17
plate paper sensor (PI8), or saddle inlet sensor (PI22) during power ON.
PI18
PI19
PI20
PI22
Door open PI3 When the delivery cover sensor (PI13) or inlet cover sensor (PI19) detects
that the cover is opened during operation.
PI9
When the front cover sensor (PI102) detects cover open with paper present
PI102
on the processing tray while the device is not operating.
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Jam Condition
T-2-11
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