No.
Component
Function
S22
Paper Position Side HP
Sensor
Controls the movement of the paper position detection unit.
Switches on when the horizontal detection unit is at the home po-
sition (HP is the reference point).
S23
Punch HP Sensor
Detects the home position of the punch unit and controls the ver-
tical movement of the punches when they fire.
S24
Punch Encoder Sensor
When the punch mode is selected for the job (2-hole, 3-hole, etc.),
the machine controls the operation of the punch drive (M24) mo-
tor which drives a small encoder shaped like a notched wheel.
This wheel is rotated forward and reverse precisely to select which
punches are moved up and down during the punch stroke.
S25
Clamp Roller HP Sensor
Controls the movement of the clamp retraction roller (the idle roller
of the clamp roller pair).
S26
Fold Unit Entrance Sensor
Detects 1) the leading edge of the stack during booklet stapling,
and 2) also used to signal an alarm if a paper is detected at the
entrance of the fold unit when the copier is turned on.
S27
Stack Junction Gate HP
Sensor
Controls the opening and closing of the stack junction gate.
Switches on when the stack junction gate is open and at the home
position.
S28
Fold Bottom Fence HP
Sensor
Controls the movement of the bottom fence in the folding unit using
pulse counts based on the size of the paper selected for the job
to position the stack correctly for feeding.
S29
Fold Plate HP Sensor
Along with the fold plate cam HP sensor (S30) this sensor controls
the movement of the fold plate . The fold plate has arrived at the
home position when the edge of the plate enters the gap of this
sensor.
S30
Fold Plate Cam HP Sensor
Along with the fold plate HP sensor (S29), this sensor controls the
movement of the fold plate. The actuator mounted on the end of
the roller that drives the folder plate forward and back makes three
full rotations, i.e. the actuator passes the sensor gap twice and
stops on the 3rd rotation and reverses. This accounts for the left
and right movement of fold plate.
S31
Fold Unit Exit Sensor
1) Detects the folded edge of the stack as it feeds out from the nip
of the fold rollers, stops the rollers, and reverses them so the fold
feeds back into the nip, 2) when the folded booklet finally emerges
Component Layout
41
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