Sharp AR-M35 / AR-M450 (serv.man8) Service Manual ▷ View online
AR-350/450 BASIC PAPER TRANSPORT PATH AND PAPER EXIT 3-6
<2>Job Offset
The machine pulls the sheet once to the processing tray. It then moves
the sheet to the front or the rear using the aligning plate. When it has
the sheet to the front or the rear using the aligning plate. When it has
deposited a specific number of sheets, it delivers them in the form of a
aligning plane. When the number of sheets stacked on the processing
tray reaches a specified value, the sheets are delivered in a form of a
tray reaches a specified value, the sheets are delivered in a form of a
stack. Even if the specified value is not reached, stacked sheets are
temporarily delivered when 10 sheets of large-size paper (300 mm or
longer) or 30 sheets of small-size paper (299 mm or shorter) have been
longer) or 30 sheets of small-size paper (299 mm or shorter) have been
stacked. (5- and STMT-sizes: 10 sheets)
<3>Stapling
The machine stacks sheets coming from its host machine on the
processing tray. When the number of sheets stacked on the processing
tray reaches a specified value, the finisher staples them delivers the
stapled stack to the delivery tray.
stapled stack to the delivery tray.
<4>Saddle Delivery
The machine deposits a stack of sheets on the processing tray, staples it
(middle 2-point), and then moves it to the saddle unit. The saddle unit
(middle 2-point), and then moves it to the saddle unit. The saddle unit
folds the stack in two, and delivers it to the bind tray.
4th set
(direction of delivery)
Results of offset delivery (4 jobs)
2nd set
3rd set
1st set
) !"#$%
AR-350/450 BASIC PAPER TRANSPORT PATH AND PAPER EXIT 3-7
(2) Feed/Delivery
a. Outline
The machine forwards the sheets coming from its host machine to the
delivery tray, processing tray, or saddle unit according to the type of
delivery used. The sheets forwarded to the processing tray or the saddle
delivery used. The sheets forwarded to the processing tray or the saddle
unit are offset, stapled, or folded.
The table below shows the motors that are associated with moving and
aligning sheets. These motors are controlled (rotated clockwise or
aligning sheets. These motors are controlled (rotated clockwise or
counterclockwise) by the microprocessor (CPU) on the finisher controller
PCB.
The paper path is equipped with the sensors shown in the table below
The paper path is equipped with the sensors shown in the table below
used to monitor the arrival or passage of sheets.
If a sheet fails to arrive at or move past a specific sensor within a specific
period of time, the finisher controller will assume a jam, and stops the
period of time, the finisher controller will assume a jam, and stops the
ongoing operation and, at the same time, communicates the presence of
a jam to the host machine.
Notation
Name
Description
Connector on finisher
controller PCB
FFM
Feed motor
Stepping motor
CN10
FPM
Paddle motor
Stepping motor
CN10
FAM
Delivery motor
Stepping motor
CN13
FFJM
Alignment plate
motor (front)
motor (front)
Stepping motor
CN3
FRJM
Alignment plate
motor (rear)
motor (rear)
Stepping motor
CN3
FFSM
Staple/fold motor Brush DC motor CN6
PI14
FFJM
FFSM
FFC
FSM
FLM
FAM
FRJM
FPM
FFM
Finisher controller PCB (1/2)
F
eed motor
dr
iv
e signal FEEDMTR
P
addle motor
dr
iv
e signal PDLMTR
Alignment plate motor
(rear) dr
iv
e signal RJOGMTR
Bind clutch dr
iv
e signal B_CLU
Alignment plate motor
(front) dr
iv
e signal FJOGMTR
Finisher controller PCB (2/2)
Staple/fold motor drive signal BINDMTR
Staple/f
old motor cloc
k detect signal
BIND_CLK
Shift motor drive signal SIFTMTR
Delivery motor drive signal EJCTMTR
Slide motor drive signal SLIDMTR
Notation Name
Description
Connector on finisher
controller PCB
controller PCB
ES
Inlet sensor
Photointerrupter CN16
FPS
Fold position sensor Photointerrupter CN16
Finisher controller PCB
FPS
F
old position paper detect signal BIND_P
ES
Inlet paper detect signal ENT_P
* !"#$%
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
+ !"#$%
AR-350/450 BASIC PAPER TRANSPORT PATH AND PAPER EXIT 3-9
B. Stapling Operation
(1) Outline
Staple operation is performed to staple a specified sheets of paper using
a stapler unit.
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
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
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.
(2) Stapling Operation
When stacking and alignment of paper on the processing tray are
complete, the finisher controller PCB drives the paddle motor (FPM) in
the reverse direction and lowers the swing guide. When the swing guide
the reverse direction and lowers the swing guide. When the swing guide
descends, the paper stack is sandwiched between the upper and lower
stack delivery rollers.
The finisher controller PCB moves the stapler for stapling according to
The finisher controller PCB moves the stapler for stapling according to
the specified stapling position (when rear 1-point stapling is specified,
the stapler does not move but it staples at the standby position). As the
stapler moves forward, the processing tray stopper is folded forward.
stapler moves forward, the processing tray stopper is folded forward.
Sensor
Simbol Connector
Function
Remarks
Slide home
position sensor
position sensor
SHPS
CN11-3
Detects the home
position for the stapler
moving back and forth.
position for the stapler
moving back and forth.
-
Staple home
position sensor
position sensor
STHPS CN11-4
Detects the home
position for the stapling
operation
position for the stapling
operation
In the
stapler
stapler
Staple empty
sensor
sensor
SPS
CN11-5
Detects presence or
absence of staples in
the cartridge.
absence of staples in
the cartridge.
In the
stapler
stapler
Staple top
position sensor
position sensor
SS
CN11-6
Detects the staple top
position.
position.
In the
stapler
stapler
Function
Motor
Symbol
Remarks
Moves the stapler.
Slide motor
FSM
-
Performs stapling operation.
Staple/fold motor
FFSM
-
Paper stack
Slide motor
(FSM)
Stapler
Slide home position sensor (SHPS)
Light-shielding plate
(Deliver direction)
Stapler
Swing guide
Stack delivery roller (upper)
Stack
delivery
roller
(lower)
Processing tray stopper
Paper stack
Delivery tray
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)
, !"#$%
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