Stapling Operation - Sharp AR-FN7 Service Manual

Offsetting in the backward direction
Tray
Fig.F02-203-04
(4)Stack Delivery Operation
Stack delivery takes place when 10 sheets of large-size paper or 30
sheets of small-size paper (A5- and STMT-sizes: 10 sheets) have been
stacked on the processing tray with them offset in either direction.
The paddle motor rotates and the swing guide descends to hold the
paper stack between the upper and lower stack delivery rollers. The
delivery motor rotates in the forward direction to rotate the delivery
rollers, feeding the paper stack 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. Next,
the paper delivery motor is driven. Next, the delivery motor is driven to
deliver the paper stack with the nails of the delivery belt that rotates in
sync with the stack delivery rollers.
Fig.F02-203-05
Job offset sequence
Start signal
Host machine delivery signal
Inlet sensor (ES)
Processing tray sensor
(AS)
Feed motor (FFM)
Delivery motor (FAM)
Delivery belt home
position sensor (OBHPS)
360msec
Paddle motor (FPM)
Paddle home position
sensor (PHPS)
Swing guide home
position sensor (ARHPS)
Stapler safety switch
(SSS)
Alignment motor (front)
(FFJM)
Aligning plate home position
sensor (front) (FJHPS)
Alignment motor (rear)
(FRJM)
Aligning plate home position
sensor (rear) (RJHPS)
Fig.F02-203-06
Aligning plate (rear)
Sheet to be offset
Aligning plate (front)
Swing guide
360msec 360msec 360msec
60msec 30msec 220msec
CW rotation CCW rotation
AR-FN7/PN1 OPERATIONAL DESCRIPTION 4-7

3. Stapling Operation

A.Outline
Staple operation is performed to staple a specified sheets of paper using
a stapler unit.
The stapling position depends on the staple mode and paper size.
When the machine starts immediately after power-on, the finisher
controller PCB drives the slide motor (FSM) to return the stapler unit to
the home position. The stapler unit starts moving toward the front of the
stapler frame. It stops when the slide home position sensor (SHPS) on
the slide PCB located under the stapler unit. Next, the slide motor is
driven a specified number of pulses. The stapler unit moves to rear
standby position at the back of the machine, entering the standby state.
Sensor Symbol Connector
Slide home SHPS CN11-3
position sensor
Staple home STHPS CN11-4
position sensor
Staple empty SPS CN11-5
sensor
Staple top SS CN11-6
position sensor
Function
Moves the stapler. Slide motor
Performs stapling operation. Staple/fold motor
Table.T02-301-01
Paper stack
Slide motor
(FSM)
Slide home position sensor (SHPS)
Fig.F02-301-01
Function Remarks
Detects the home -
position for the stapler
moving back and forth.
Detects the home In the
position for the stapling stapler
operation
Detects presence or In the
absence of staples in stapler
the cartridge.
Detects the staple top In the
position. stapler
Motor Symbol Remarks
FSM -
FFSM -
Stapler
(Deliver direction)
Light-shielding plate