Detecting Jams; Outline - Canon Staple Finisher-H1 Service Manual

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Technology > Detecting Jams > Outline

Detecting Jams

Outline

The following sensors are provided to check whether paper is present and whether the
stapler is operating normally.
• Inllet sensor (S1)
• Delivery sensor (S2)
• Staple HP sensor (S11)
• Staple edging sensor (S12)
2 Technology > Detecting Jams > Outline
S1
S2
S11
S12
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Occurrence of a jam is checked (at the check timing) according to the sensor detection state
stored in the CPU on the finisher controller PCB.
When the finisher controller PCB judges that a jam has occurred, it stops feeding/delivering
paper and notifies occurrence of the jam to the host machine.
Jam type Sensor
Inlet sensor delay S1 Detected when the inlet sensor (S1) does not detect
jam paper after lapse of the specified time since reception of
a paper delivery signal from the host machine.
Delivery sensor S2 Detected when the delivery sensor (S2) does not detect
delay jam paper after lapse of the specified time since detection of
paper by the inlet sensor (S1).
Delivery sensor S2 Detected when the delivery sensor (S2) does not turn
staionary jam off after lapse of the specified time since detection of
paper by the delivery sensor (S2).
Inlet sensor early S1 Detected when the inlet sensor (S1) detects paper
arrival jam without receiving a delivery signal from the host
machine.
Or detected when the inlet sensor (S1) detects paper
earlier than the specified timing after reception of a
delivery signal from the host machine.
Stapler jam S11/S12 Detected when the staple HP sensor (S11) cannot
detect the stapler again even after the specified time
has lapsed since the stapler passed through the staple
HP sensor (S11) when stapling is executed.
Or detected when the staple edging sensor (S12)
cannot detect a staple even when recovery operation is
performed ten times when staple edging is executed.
Door open jam S1/S2 Detected when the front door is opened while paper is
being fed (the inlet sensor (S1) or delivery sensor (S2)
detects paper).
Power-on jam S1/S2 Detected when the inlet sensor (S1) or delivery sensor
(S2) detects paper during power-on.
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Jam description
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