Read Sharp MX-FN19 / MX-FN20 / MX-PN12 Specification online
MX-FN19 OPERATIONAL DESCRIPTION 6 – 16
D. Trailing edge assist operation
When paper stacks are delivered, the trailing edge assist guide is
used to support the trailing edge of the stacks as well as the deliv-
ery roller for improvement in performance of stacking of paper
delivered to the stapling tray.
used to support the trailing edge of the stacks as well as the deliv-
ery roller for improvement in performance of stacking of paper
delivered to the stapling tray.
E. Delivery operation
The delivery is implemented whenever three sheets *1 of large size
paper or four sheets *2 of small size paper are offset on the sta-
pling tray.
As the swing motor runs, the swing guide is lowered. Then, paper
stack is caught between the upper and lower delivery rollers, and
delivered by the delivery roller and the trailing edge assist guide.
The trailing edge guide is stopped when it reaches the predefined
position, and returned with the reverse rotation of the trailing edge
assist motor. Then, the delivery motor runs continuously, and the
paper stack is delivered by the upper and the lower delivery rollers.
paper or four sheets *2 of small size paper are offset on the sta-
pling tray.
As the swing motor runs, the swing guide is lowered. Then, paper
stack is caught between the upper and lower delivery rollers, and
delivered by the delivery roller and the trailing edge assist guide.
The trailing edge guide is stopped when it reaches the predefined
position, and returned with the reverse rotation of the trailing edge
assist motor. Then, the delivery motor runs continuously, and the
paper stack is delivered by the upper and the lower delivery rollers.
* Depends on the number of originals (Ranges from two minimally
to four maximally. For example, if number of originals is ten,
paper stacks are delivered in the following sequence: 3 sheets, 3
sheets, 4 sheets)
paper stacks are delivered in the following sequence: 3 sheets, 3
sheets, 4 sheets)
* Depends on the number of originals (Ranges from two minimally
to six maximally. For example, if number of originals is seven,
paper stacks are delivered in the following sequence: 4 sheets, 3
sheets. If number of originals is ten, paper stacks are delivered in
the following sequence: 4 sheets, 6 sheets.)
paper stacks are delivered in the following sequence: 4 sheets, 3
sheets. If number of originals is ten, paper stacks are delivered in
the following sequence: 4 sheets, 6 sheets.)
4. Staple operation
A. Outline
This machine incorporates two stapler units. The stapler unit in the
finisher staples at one point in the front, one point at the back, or
two points. The stitcher unit in the saddle stitcher staples at two
points in the center of paper stack.
finisher staples at one point in the front, one point at the back, or
two points. The stitcher unit in the saddle stitcher staples at two
points in the center of paper stack.
B. Stapler unit
Stapling is executed by the staple motor (FFSM). A single rotation
of the cam by the motor results in one stapling operation. The cam
is checked by the staple home position sensor (FSHPD) to find out
whether it is at the home position.
The stapler motor is controlled by the microprocessor (IC2) on the
finisher controller PCB so that it is rotated clockwise or counter-
clockwise.
When the stapling home position sensor is off, the finisher control-
ler PCB rotates the stapler motor clockwise until the sensor turns
on so as to return the stapling cam to its initial state.
The presence/absence of the staple cartridge and the presence/
absence of staples inside the staple cartridge are detected by the
staple sensor (FSD).
The staple edge sensor (FSTD) is used to find out whether a staple
has been edged out to the end of the cartridge.
The finisher controller PCB does not drive the staple motor (FFSM)
unless the staple safety switch (FSAD) is on. This is to protect
against injuries that could occur when a finger is stuck inside the
stapler.
of the cam by the motor results in one stapling operation. The cam
is checked by the staple home position sensor (FSHPD) to find out
whether it is at the home position.
The stapler motor is controlled by the microprocessor (IC2) on the
finisher controller PCB so that it is rotated clockwise or counter-
clockwise.
When the stapling home position sensor is off, the finisher control-
ler PCB rotates the stapler motor clockwise until the sensor turns
on so as to return the stapling cam to its initial state.
The presence/absence of the staple cartridge and the presence/
absence of staples inside the staple cartridge are detected by the
staple sensor (FSD).
The staple edge sensor (FSTD) is used to find out whether a staple
has been edged out to the end of the cartridge.
The finisher controller PCB does not drive the staple motor (FFSM)
unless the staple safety switch (FSAD) is on. This is to protect
against injuries that could occur when a finger is stuck inside the
stapler.
Back alignment plate
Offset sheet
Front alignment plate
Tray
Traling edge assist
home position sensor (FASHPD)
Paper
Stapling tray stopper
Trailing edge assist guide
Trailing edge assist motor (FASM)
Stapling tray stopper
Stack delivery roller
Swing guide
Return roller
Trailing edge assist
guide
Stapler unit
Stitcher
unit
(Front/back)
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