Read Sharp AR-M35 / AR-M450 (serv.man8) Service Manual online
AR-350/450 BASIC PAPER TRANSPORT PATH AND PAPER EXIT 3-8
(3) Job Offset
a. Outline
"Job offset" refers to the operation by which the machine delivers a set of
sheets with them pulled forward or backward for sorting.
Switching between the forward and backward directions is made using
Switching between the forward and backward directions is made using
an aligning plate (front) and an aligning plate (rear).
The sheet coming between the delivery rollers is fed onto the processing
tray and then fed toward the stopper by the paddle.
tray and then fed toward the stopper by the paddle.
A swing guide is at the up position while a sheet is being pulled onto the
processing tray or during alignment. It is at the down position during
stack feeding, stack delivery, or stapling.
stack feeding, stack delivery, or stapling.
At power-on, the finisher controller PCB drives the aligning plate (front)
motor (FFJM) and the aligning plate (rear) motor (FRJM) to return the
two aligning plates to their home positions.
two aligning plates to their home positions.
b. Processing Tray Paper Stacking Operation
A sheet coming between the delivery rollers is fed onto the processing
tray.Then, the paddle taps on the sheet surface twice (once for the
tray.Then, the paddle taps on the sheet surface twice (once for the
second and subsequent sheets) to locate the sheet against the
processing tray stopper.
c. Offset Operation
Each sheet is pulled forward or backward using the aligning plate (front)
and the aligning plate (rear).
and the aligning plate (rear).
The offset operation is performed each time a sheet is pulled onto the
processing tray.
Offsetting in the forward direction
Offsetting in the backward direction
d. 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
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
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
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.
Job offset sequence
Sensor
Symbol Connector Function
Motor
Simbol
Aligning plate
(front) home
position sensor
(front) home
position sensor
FJHPS
CN4-3
Drives the
aligning plate
(front)
aligning plate
(front)
Aligning
plate
(front)
motor
plate
(front)
motor
FFJM
Aligning plate
(rear) home
position sensor
(rear) home
position sensor
RJHPS CN5-15
Drives the
aligning plate
(rear)
aligning plate
(rear)
Aligning
plate
(rear)
motor
plate
(rear)
motor
FRJM
Swing guide
home position
sensor
home position
sensor
ARHPS CN9-9
Drives the
swing guide
drive.
swing guide
drive.
Paddle
motor
motor
FPM
Paddle home
position sensor
position sensor
PHPS
CN9-3
Drives the
paddle
(feeds paper).
paddle
(feeds paper).
Paddle
motor
motor
FPM
Aligning plate
(front)
(front)
Alignment plate (front)
motor (FFJM)
motor (FFJM)
Alignment plate (rear)
motor (FRJM)
motor (FRJM)
Light-shielding plate
(Front)
Paper
Aligning plate (front) home position sensor (FJHPS)
Light-shielding plate
Aligning plate (rear)
home position sensor (RJHPS)
home position sensor (RJHPS)
Aligning plate (rear)
Swing guide
Delivery belt
Stack delivery roller (lower)
Processing tray stopper
Paddle
Stack delivery roller (upper)
Aligning plate
Paper
Aligning plate (rear)
Sheet to be offset
Tray
Aligning plate (front)
Tray
Aligning plate (rear)
Sheet to be offset
Aligning plate (front)
Swing guide
Host machine delivery signal
Start signal
Inlet sensor (ES)
Processing tray sensor
(AS)
(AS)
Feed motor (FFM)
Delivery motor (FAM)
Delivery belt home
position sensor (OBHPS)
position sensor (OBHPS)
Paddle motor (FPM)
Paddle home position
sensor (PHPS)
sensor (PHPS)
Swing guide home
position sensor (ARHPS)
position sensor (ARHPS)
Stapler safety switch
(SSS)
(SSS)
Alignment motor (front)
(FFJM)
(FFJM)
CW rotation
CCW rotation
Aligning plate home position
sensor (front) (FJHPS)
sensor (front) (FJHPS)
Alignment motor (rear)
(FRJM)
(FRJM)
Aligning plate home position
sensor (rear) (RJHPS)
sensor (rear) (RJHPS)
360msec
60msec
360msec
360msec
360msec
30msec
220msec
+ !"#$%
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