Sharp AR-F13 (serv.man2) Service Manual ▷ View online
AR-F13 OPERATIONAL DESCRIPTION 4-8
B.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
descends, the paper stack is sandwiched between the upper and lower
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 specified stapling position (when rear 1-point stapling is specified,
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.
C.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
belt home position sensor is turned OFF. The delivery motor is driven a
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
standby position, followed by driving of the delivery motor. Then, 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.
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)
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)
AR-F13 OPERATIONAL DESCRIPTION 4-9
D.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).
The staple/fold motor is rotated in the forward or reverse direction under
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 rotates the staple/fold motor in the forward direction until the sensor
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
staple cartridge in the machine and presence/absence of staples in the
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
are pushed up to the top of the staple cartridge.
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).
This assures safety in case where you happen to put your finger in the
This assures safety in case where you happen to put your finger in the
stapler.
(1)Stapler Movement Controller
The stapler unit is moved by the slide motor (FSM). Its home position is
detected by the slide home position sensor (SHPS). The stapler waits at
the back irrespective of the staple mode and paper size. After paper has
the back irrespective of the staple mode and paper size. After paper has
been stacked on the processing tray, the stapler is moved to the
specified stapling position in response to the stapling command from the
host machine.
host machine.
The standby position of the stapler and the stapling position depending
on the staple mode are shown below.
a.Front 1-point stapling
The stapler waits at the back. The stapler moves to and returns from the
stapling position for each stapling operation.
b.Rear 1-point stapling
The stapler waits at the back. The stapling position is the same as the
standby position.
c.Middle 2-point stapling
The stapler waits at the back. The stapler moves to and returns from the
stapling position for each stapling operation. The stapler first staples a
paper stack at the rear stapling position and then staples it at the front
paper stack at the rear stapling position and then staples it at the front
stapling position.
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
Feed direction
Stapling position
Stopper
Stapler
Standby position
Feed direction
Stapler
Stopper
Standby position
Stabling position
Stabling position
Feed direction
Standby position
Stapler
Stapling position
Stopper
Stapling position
AR-F13 OPERATIONAL DESCRIPTION 4-10
d.Middle 2-point stapling (bind mode)
The stapler waits at the back. The stapler moves to and returns from the
stapling position for each stapling operation. The stapler first staples a
paper stack at the rear stapling position and then staples it at the front
stapling position.
stapling position.
Stapling Operation Sequence
Rear 1-point Stapling of 2 Sheets
4. Delivery Tray Operation
A.Outline
The machine has a delivery tray in the finisher unit and a bind tray in the
saddle unit.
saddle unit.
The bind tray in the saddle unit is of the fixed type and all the folded
paper stacks are delivered to this tray. This tray has a bind tray sensor
(FES) to detect presence/absence of paper.
(FES) to detect presence/absence of paper.
The delivery tray in the finisher unit is moved up and down using a shift
motor (FLM).
The finisher has a tray paper sensor (BES) to detect presence/absence
The finisher has a tray paper sensor (BES) to detect presence/absence
of paper on the stack tray.
The home position sensor of the delivery tray is detected by the paper
surface sensor (STHPS). When paper has already been stacked on the
surface sensor (STHPS). When paper has already been stacked on the
delivery tray, the home position is on the top surface of the stacked
paper. When paper has not yet been stacked on the delivery tray, the
home position is at the position where the edge of the delivery tray is
home position is at the position where the edge of the delivery tray is
detected. At power-on, the finisher controller PCB drives the shift motor
(FLM) to return the delivery tray to the home position.
When the paper coming from the processing tray is stacked on the
When the paper coming from the processing tray is stacked on the
delivery tray, the shift motor is driven a specified number of pulses,
causing the delivery tray to descend. Clock pulses are detected by the
shift motor clock sensor (LE). Then, the delivery tray returns to the home
shift motor clock sensor (LE). Then, the delivery tray returns to the home
position for the next stacking operation.
The upper limit of the delivery tray is detected by the shift upper limit
sensor (ULS). When the shift upper limit sensor (ULS) is turned ON, the
sensor (ULS). When the shift upper limit sensor (ULS) is turned ON, the
finisher controller PCB stops the shift motor (FLM) that is ascending.
The lower limit of the delivery tray is detected by the shift lower limit
sensor (LLLS). When the shift lower limit sensor (LLLS) is turned ON,
sensor (LLLS). When the shift lower limit sensor (LLLS) is turned ON,
the finisher controller PCB stops the shift motor (FLM) that is
descending.
The finisher unit has a full stack sensor (PI24) to detect overstacking of
The finisher unit has a full stack sensor (PI24) to detect overstacking of
large-size or mixed paper according to the stack height.
Feed direction
Standby position
Stapler
Stopper
Stapling position
Stapling position
Host machine delivery signal
Start signal
Inlet sensor (ES)
Processing tray sensor
(AS)
(AS)
Feed motor (FFM)
Delivery motor (FAM)
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)
Aligning plate home position
sensor (front) (FJHPS)
sensor (front) (FJHPS)
Staple/fold motor
(FFSM)
(FFSM)
Staple home position
sensor (STHPS)
sensor (STHPS)
CW rotation
CCW rotation
Delivery belt home
position sensor (OBHPS)
position sensor (OBHPS)
360msec
10msec
20msec
360msec
Stack delivery
Staple
Tray paper sensor (BES)
Shift motor (FLM)
Shift motor clock sensor
(LE)
Shift lower limit sensor
(LLLS)
Full stack sensor (XXXX)
Shift upper limit sensor
(ULS)
Delivery tray
Paper surface sensor (SLS)
Edge
AR-F13 OPERATIONAL DESCRIPTION 4-11
5. Saddle Unit
A.Basic Operations
(1)Outline
The machine stitches a stack of sheets (middle 2-point), then folds the
stack in two in the finisher. These operations are controlled by the
finisher controller PCB.
finisher controller PCB.
The finisher controller PCB is controlled by the commands from the host
machine.
B.Feed/Drive System
(1)Outline
This machine stitches the paper stack coming from the finisher, folds it,
and delivers it to the bind tray in the saddle unit in response to the
and delivers it to the bind tray in the saddle unit in response to the
commands from the host machine.
That is, the machine performs the following operations:
a) Paper feed-in
b) Stitching
b) Stitching
c)
Stack feed
d) Folding/delivery
a.Paper feed-in
After being aligned on the processing tray, a stack of sheets is
sandwiched between the stack delivery rollers. As the stack delivery
sandwiched between the stack delivery rollers. As the stack delivery
rollers rotate, the stack is fed toward the saddle unit.
b.Stitching
When the center of the paper stack (stitching position) reaches the
stapler's staple position, the stapler stitches the paper stack.
When only one sheet is fed from the host machine, the next step (stack
feed) is performed without performing the stitching operation.
feed) is performed without performing the stitching operation.
c.Stack feed
The stack feed rollers feed the paper stack to the stack folding/delivery
position where the center of the stack (stitched position) is level with the
paper pushing plate and paper folding roller's nip part.
paper pushing plate and paper folding roller's nip part.
a) Paper feed-in
b) Stitching
c) Stack feed
d) Folding/delivery
Stack delivery roller (upper)
Paper stack
Stack delivery roller
(lower)
Staple
Stapler (lower)
Stapler (upper)
Paper fold roller
Paper pushing plate
Stack feed roller (upper)
Stack feed roller (lower)
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