Stapler/stacker jam detection
The following sensors detect paper and determine whether paper is delivered properly.
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Stacking paper-path-entry sensor (PI103)
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Stacking paper-path-delivery sensor (PI104)
A jam is identified by checking whether paper is present at each sensor at the timing programmed in
the memory of the microcomputer (CPU) on the stacker controller PCA. When the CPU identifies a
jam, it suspends the stacker's delivery operation and informs the product of the jam. When all doors
are closed after the paper jam is removed, the stacker use the two sensors (stacking paper-path-
entry sensor and stacking paper-path-delivery sensor) to check for further jams. If the sensors detect
paper, the stacker determines that the paper jam has not been removed and sends another jam
removal signal to the product.
Figure 1-111 Jam detection sensors
PI103
PI104
152 Chapter 1 Theory of operation ENWW
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