Read Sharp AR-M35 / AR-M450 (serv.man8) Service Manual online
AR-350/450 BASIC PAPER TRANSPORT PATH AND PAPER EXIT 3-10
(3) Delivery Operation after Stapling
When stapling is complete, the finisher controller PCB drives the deliver
motor in the forward direction to feed the paper stack (sandwiched
between the stack delivery rollers) in the delivery direction. The delivery
between the stack delivery rollers) in the delivery direction. The delivery
belt home position sensor is turned OFF. The delivery motor is driven a
specified number of pulses, causing the swing guide to ascend. At the
same time, the slide motor is driven to return the stapler back to the
same time, the slide motor is driven to return the stapler back to the
standby position, followed by driving of the delivery motor. Then, the
paper stack is delivered with the nails of the delivery belt that rotates in
sync with the stack delivery rollers.
sync with the stack delivery rollers.
(4) Stapler Unit
The staple/fold motor (FFSM) 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 (STHPS).
cam is detected by the staple home position sensor (STHPS).
The staple/fold motor is rotated in the forward or reverse direction under
the control of the macro computer (IC13) on the finisher controller PCB.
When the staple home position sensor is OFF, the finisher controller PCB
When the staple home position sensor is OFF, the finisher controller PCB
rotates the staple/fold motor in the forward direction until the sensor turns
ON, allowing the staple cam to the original position.
The staple empty sensor (SPS) is used to detect presence/absence of a
The staple empty sensor (SPS) is used to detect presence/absence of a
staple cartridge in the machine and presence/absence of staples in the
cartridge.
The stale top position sensor (SS) is used to determine whether staples
The stale top position sensor (SS) 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/fold motor (FFSM)
unless the staple safety switch (SSS) is ON (the swing guide is close).
unless the staple safety switch (SSS) is ON (the swing guide is close).
This assures safety in case where you happen to put your finger in the
stapler.
Stapler
Swing guide
Stack delivery
roller (lower)
roller (lower)
Paper stack
Delivery tray
Delivery belt
Paddle motor (FPM)
Swing guide home
position sensor (ARHPS)
position sensor (ARHPS)
Light-shielding plate
Staple safety switch
(SSS)
(SSS)
Swing guide
Stack delivery roller
(upper)
Stack delivery roller
(lower)
Finisher controller PCB
Staple/hold motor dr
iv
e signal
Staple top position detect signal
Staple empty detect signal
Staple home position detect signal
M7
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