Sharp MX-5500N / MX-6200N / MX-7000N (serv.man17) Peripheral ▷ View online
MX-FNX4 OPERATIONAL DESCRIPTION 5 – 17
C. Shifting the stapler unit
The stapler unit is moved by the stapler shift motor (FSM). Its home
position is detected by the stapler shift home position sensor
(FSTHPD). When the staple signal arrives from the host machine,
the stapler moves to the staple wait position appropriate for staple
position and the paper size. See the figures shown below for an
idea of the wait position according to the stapling mode.
Front 1-Point Stapling
The wait position is the same as the stapling position.
position is detected by the stapler shift home position sensor
(FSTHPD). When the staple signal arrives from the host machine,
the stapler moves to the staple wait position appropriate for staple
position and the paper size. See the figures shown below for an
idea of the wait position according to the stapling mode.
Front 1-Point Stapling
The wait position is the same as the stapling position.
Rear 1-Point Stapling
The wait position is the same as the stapling position.
The wait position is the same as the stapling position.
2-Point Stapling
The stapler is kept in wait in the front of the paper. Stapling occurs
at two points, first in the front, and then at the back.
The stapler is kept in wait in the front of the paper. Stapling occurs
at two points, first in the front, and then at the back.
Staple
home
position
detection
signal
Staple
detection
signal
Staple
edge
position
detection
signal
Staple
drive
signal
Finisher controller PCB
FFSM
Back alignment
plate
Stopper
Staple position/
wait position
Feeding direction
Front alignment
plate
Back alignment plate
Staple position/
wait position
Stopper
Feeding direction
Front alignment plate
Back alignment plate
Staple position
Stopper
Staple position/
wait position
Stopper
Stopper
Front alignment
plate
Feeding direction
MX-FNX4 OPERATIONAL DESCRIPTION 5 – 18
D. Stapling operation
Outline
The stapler unit staples a stack of as many sheets as specified.
The stapling position differs according to the selected staple mode
and paper size.
The stapler unit is checked by the stapler shift home position sen-
sor (FSTHPD) to find out whether it is at the home position.
The stapler unit staples a stack of as many sheets as specified.
The stapling position differs according to the selected staple mode
and paper size.
The stapler unit is checked by the stapler shift home position sen-
sor (FSTHPD) to find out whether it is at the home position.
The stapler unit is equipped with the stapler alignment interference
sensor (FSJOGD). While the stapler alignment interference sensor
(FSJOGD) is on, running of the staple motor (FFSM) is prohibited.
This is intended for prevention of breakage of the stopper caused
by stapling in the stopper due to out-of-step.
When starting operation after power-on, the finisher controller PCB
drives the stapler shift motor (FSM) to return the stapler unit to the
home position. If the stapler unit is already at the home position, it
is kept as it is in wait.
sensor (FSJOGD). While the stapler alignment interference sensor
(FSJOGD) is on, running of the staple motor (FFSM) is prohibited.
This is intended for prevention of breakage of the stopper caused
by stapling in the stopper due to out-of-step.
When starting operation after power-on, the finisher controller PCB
drives the stapler shift motor (FSM) to return the stapler unit to the
home position. If the stapler unit is already at the home position, it
is kept as it is in wait.
Stapling First Sheet
The finisher controller PCB moves the stapler depending on the
predetermined stapling position. The finisher controller PCB stops
the delivery motor (FAM) as soon as the trailing edge of the first
sheet has moved past the No.1 feed roller. Then, it rotates the
delivery motor reverse to drive the delivery roller and the return
roller, and paper is delivered to the stapling tray. The presence of
paper on the stapling tray is detected by the stapling tray sensor
(FSTPD). After paper is delivered to the stapling tray, the swing
motor (FSWM) runs to raise the stapling tray sensor (FSTPD).
When the swing guide home position sensor (FSWHPD) detects
the raise of the swing guide, the swing motor is stopped, and the
swing guide is held at the raised position.
After the stapling tray sensor detects the presence of paper, the
alignment motor runs to align paper.
The alignment motors (FFJM/FRJM) are driven for alignment of
paper after the stapling tray paper sensor detects paper.
The finisher controller PCB moves the stapler depending on the
predetermined stapling position. The finisher controller PCB stops
the delivery motor (FAM) as soon as the trailing edge of the first
sheet has moved past the No.1 feed roller. Then, it rotates the
delivery motor reverse to drive the delivery roller and the return
roller, and paper is delivered to the stapling tray. The presence of
paper on the stapling tray is detected by the stapling tray sensor
(FSTPD). After paper is delivered to the stapling tray, the swing
motor (FSWM) runs to raise the stapling tray sensor (FSTPD).
When the swing guide home position sensor (FSWHPD) detects
the raise of the swing guide, the swing motor is stopped, and the
swing guide is held at the raised position.
After the stapling tray sensor detects the presence of paper, the
alignment motor runs to align paper.
The alignment motors (FFJM/FRJM) are driven for alignment of
paper after the stapling tray paper sensor detects paper.
Paper
Stapler shift motor
(FSM)
Stapler
Stapler alignment interference
sensor (FSJOGD)
Stapler shift home position sensor
(FSTHPD)
Slant staple in the front
Two point staple
Slant staple at the back
Half of
paper
width
Sensor
Code
Connector
Function
Remarks
Staple shift home position sensor
FSTHPD
J721B-6
Detects home position of stapler in the front or back
-
Stapler alignment interference sensor
FSJOGD
J717-3
Detects staple prohibition area
-
Staple home position sensor
FSHPD
J717-5
Detects home position of stapling
In stapler
Staple edge sensor
FSTD
J717-6
Detects edge of staple
In stapler
Staple sensor
FSD
J717-7
Detects presence or absence of staple in cartridge
In stapler
Function
Motor
Code
Remarks
Drive for shifting stapler
Stapler shift motor
FSM
-
Drive for staple operation
Staple motor
FFSM
-
Swing guide
Stack delivery roller
No.1 delivery rolelr
Return roller
Stapler
Stapling tray
MX-FNX4 OPERATIONAL DESCRIPTION 5 – 19
Second and Subsequent Sheets
The finisher controller PCB drives the swing motor (FSWM) when
the trailing edge of the second sheet has moved past the No.1 feed
roller to lower the swing guide. Then, it reverses the delivery motor
to turn the delivery roller (upper) and the return roller and deliver
paper to the stapling tray. At this time, the delivery roller (lower) is
not turned because the delivery lower roller clutch (FAORC) is off.
Presence of paper in the stapling tray is detected by the stapling
tray paper sensor (FSTPD).
When paper is fed to the stapling tray, the swing motor (FSWM)
runs to raise and lower the swing guide. If the swing guide home
position sensor (FSWHPD) detects the raise of the swing guide,
the swing motor is stopped, and the swing guide is held at the
raised position.
After the stapling tray paper sensor detects the presence of paper,
the alignment motors (FFJM/FRJM) are run to align paper.
The finisher controller PCB drives the swing motor (FSWM) when
the trailing edge of the second sheet has moved past the No.1 feed
roller to lower the swing guide. Then, it reverses the delivery motor
to turn the delivery roller (upper) and the return roller and deliver
paper to the stapling tray. At this time, the delivery roller (lower) is
not turned because the delivery lower roller clutch (FAORC) is off.
Presence of paper in the stapling tray is detected by the stapling
tray paper sensor (FSTPD).
When paper is fed to the stapling tray, the swing motor (FSWM)
runs to raise and lower the swing guide. If the swing guide home
position sensor (FSWHPD) detects the raise of the swing guide,
the swing motor is stopped, and the swing guide is held at the
raised position.
After the stapling tray paper sensor detects the presence of paper,
the alignment motors (FFJM/FRJM) are run to align paper.
Stapling Last Sheet
When the last sheet has been put in order, the finisher controller
PCB turns on the alignment motors (FFJM/FRJM) to move the
alignment plates to the alignment positions (to butt the plates
against the stack). Then, the finisher controller PCB staples at the
predetermined position.
After stapling, the finisher controller PCB runs the swing motor
(FSWM) to lower the swing guide. Then, paper stack is delivered to
the tray by the delivery roller, return the roller, and the trailing edge
assist guide.
When the last sheet has been put in order, the finisher controller
PCB turns on the alignment motors (FFJM/FRJM) to move the
alignment plates to the alignment positions (to butt the plates
against the stack). Then, the finisher controller PCB staples at the
predetermined position.
After stapling, the finisher controller PCB runs the swing motor
(FSWM) to lower the swing guide. Then, paper stack is delivered to
the tray by the delivery roller, return the roller, and the trailing edge
assist guide.
E. Stitcher unit (MX-FNX4)
The stitcher base unit consists of two stitchers and stitcher bases.
The stitchers are fixed in position, and are not designed to slide or
swing.
Stitching is executed by driving the rotary cam by the stitcher
motors (FSFSTM, FSRSTM). The front and rear stitcher units are
operated with a time delay so as to prevent wrinkling of paper
between staples and to limit the load applied to the power supply.
(A time delay for initiating the stitcher motor startup current helps
decrease the load on the power supply.)
The stitcher home position sensors (FSSHP2, FSSHP1) are used
to monitor the movement of the rotary cam, enabling identification
of individual stitcher operations. The presence/absence of staples
inside the staple cartridge fitted to the stitcher is detected by the
staple sensors (FSSD2, FSSD1).
The alignment plates keep both edges of the stack in place while
stitching takes place.
The stitchers are fixed in position, and are not designed to slide or
swing.
Stitching is executed by driving the rotary cam by the stitcher
motors (FSFSTM, FSRSTM). The front and rear stitcher units are
operated with a time delay so as to prevent wrinkling of paper
between staples and to limit the load applied to the power supply.
(A time delay for initiating the stitcher motor startup current helps
decrease the load on the power supply.)
The stitcher home position sensors (FSSHP2, FSSHP1) are used
to monitor the movement of the rotary cam, enabling identification
of individual stitcher operations. The presence/absence of staples
inside the staple cartridge fitted to the stitcher is detected by the
staple sensors (FSSD2, FSSD1).
The alignment plates keep both edges of the stack in place while
stitching takes place.
Swing guide home position sensor (FSWHPD)
Swing motor
(FSWM)
Stack delivery motor (FAM)
Stack delivery lower roller clutch (FAORC)
Swing guide
Stack delivery roller
(lower)
Stack delivery roller
(upper)
Return roller
Stapler
Swing guide
Stack delivery roller
No.1 delivery roller
Stapling tray
Swing guide
Stack delivery roller
Return roller
Stapler
Trailing edge assist guide
MX-FNX4 OPERATIONAL DESCRIPTION 5 – 20
F. Stitch operation (MX-FNX4)
To enable stitching at two locations on a stack, two stitcher units
(front, rear) are used. Each stitcher unit is equipped with a stitcher
motors (FSFSTM, FSRSTM) for drive, a stitcher home position
sensors (FSSHP2, FSSHP1) for detection of position and a staple
sensors (FSSD2, FSSD1) for detection of the presence/absence of
staples.
The stitcher base is designed so that it may be drawn out to the
front from the saddle stitcher for replacement of the staple cartridge
or removal of a staple jam. The stitcher unit in sensor (FSSIND) is
used to make sure that the stitcher base is properly fitted to the
saddle stitch unit.
Safety switches are not mounted for the saddle stitch unit (front,
rear), as the location does not allow access by the user.
(front, rear) are used. Each stitcher unit is equipped with a stitcher
motors (FSFSTM, FSRSTM) for drive, a stitcher home position
sensors (FSSHP2, FSSHP1) for detection of position and a staple
sensors (FSSD2, FSSD1) for detection of the presence/absence of
staples.
The stitcher base is designed so that it may be drawn out to the
front from the saddle stitcher for replacement of the staple cartridge
or removal of a staple jam. The stitcher unit in sensor (FSSIND) is
used to make sure that the stitcher base is properly fitted to the
saddle stitch unit.
Safety switches are not mounted for the saddle stitch unit (front,
rear), as the location does not allow access by the user.
5. Stack tray operation
A. Tray operation
This machine has two delivery trays, No.1 tray (upper) and No.2
tray (lower). The upper and lower trays can move up and down
independently.
The No.1 tray is moved up and down by the No.1 tray shift motor
(FTLM1), and No.2 tray by the No.2 tray shift motor (FTLM2).
The No.1 tray paper sensor (FBED1) and the No.2 tray paper sen-
sor (FBED2) are provided for detection of presence of paper
stacked on the tray.
The stack height sensor (FSLD1) detects the home position of the
No.1 tray, and the second stack height sensor (FSLD2) detects the
home position of the No.2 tray. If paper has already been stacked
on the tray, the home position is located at the top of the stack. If no
paper is stacked on the tray, the home position is located at the
point that the edge of the tray is detected.
The finisher controller PCB starts the drive of the No.1 tray shift
motor (FTLM1) and the No.2 tray shift motor (FTLM2) to return the
tray to its home position as the power supply switch turns on. When
the tray is already at the home position, it is moved away from the
home position once, then returned to that position. When both No.1
tray and No.2 tray are at the home positions, the above operation is
performed for the No.1 tray and No.2 tray in this order.
The finisher controller PCB raises the No.2 tray so that it is at the
delivery port, if the tray specified by the host machine is the No.2
tray.
After paper is stacked on the tray, the No.1 tray shift motor (FTLM1)
or the No.2 tray shift motor (FTLM2) is driven by the predetermined
pluses, and the tray is lowered. Then, the tray is returned to its
home position for the next stack.
The upper limit and lower limits of tray are detected by the three
area sensors (FAED1, FAED2, FAED3, FAED21, FAED22,
FADE23) on the No.1 tray/No.2 tray shift area sensor PCB. When
the finisher controller PCB detects the upper end or lower end of
the tray, drive of the No.1 tray shift motor (FTLM1) and the No.2
tray shift motor (FTLM2) is stopped.
Excess in stack height of large size and caused when large size
and mixed size paper can be detected by the combination of ON/
OFF of the area sensors (FAED1, FAED2, FAED3, FAED21,
FAED22, FADE23).
The finisher controller PCB cuts off the +24V power of the No.1 tray
shift motor (FTLM1) to stop the operation of the finisher as soon as
the No.1 tray close detector switch (FCCD) turns on.
tray (lower). The upper and lower trays can move up and down
independently.
The No.1 tray is moved up and down by the No.1 tray shift motor
(FTLM1), and No.2 tray by the No.2 tray shift motor (FTLM2).
The No.1 tray paper sensor (FBED1) and the No.2 tray paper sen-
sor (FBED2) are provided for detection of presence of paper
stacked on the tray.
The stack height sensor (FSLD1) detects the home position of the
No.1 tray, and the second stack height sensor (FSLD2) detects the
home position of the No.2 tray. If paper has already been stacked
on the tray, the home position is located at the top of the stack. If no
paper is stacked on the tray, the home position is located at the
point that the edge of the tray is detected.
The finisher controller PCB starts the drive of the No.1 tray shift
motor (FTLM1) and the No.2 tray shift motor (FTLM2) to return the
tray to its home position as the power supply switch turns on. When
the tray is already at the home position, it is moved away from the
home position once, then returned to that position. When both No.1
tray and No.2 tray are at the home positions, the above operation is
performed for the No.1 tray and No.2 tray in this order.
The finisher controller PCB raises the No.2 tray so that it is at the
delivery port, if the tray specified by the host machine is the No.2
tray.
After paper is stacked on the tray, the No.1 tray shift motor (FTLM1)
or the No.2 tray shift motor (FTLM2) is driven by the predetermined
pluses, and the tray is lowered. Then, the tray is returned to its
home position for the next stack.
The upper limit and lower limits of tray are detected by the three
area sensors (FAED1, FAED2, FAED3, FAED21, FAED22,
FADE23) on the No.1 tray/No.2 tray shift area sensor PCB. When
the finisher controller PCB detects the upper end or lower end of
the tray, drive of the No.1 tray shift motor (FTLM1) and the No.2
tray shift motor (FTLM2) is stopped.
Excess in stack height of large size and caused when large size
and mixed size paper can be detected by the combination of ON/
OFF of the area sensors (FAED1, FAED2, FAED3, FAED21,
FAED22, FADE23).
The finisher controller PCB cuts off the +24V power of the No.1 tray
shift motor (FTLM1) to stop the operation of the finisher as soon as
the No.1 tray close detector switch (FCCD) turns on.
Stitch home position sensor
(front)(FSSHP2)
Stitch motor (front)(FSFSTM)
Stitch home position sensor
Stitch home position sensor
(back)(FSSHP1)
Stitch motor (back)(FSRSTM)
No.1 paper sensor (FS1PD)
Alignment motor (FSJM)
:Alignment
:Escape
Cam
Pedestal
Stitcher (back)
Stitcher (front)
Stack
Rack
No.1 tray paper sensor (FBED1)
No.1 tray close detection switch (FCCD)
No.1 tray shift
motor (FTLM1)
No.1 tray shift
area sensor PCB
No.2 tray shift
motor (FTLM2)
No.2 tray shift
area sensor PCB
No.2 tray paper sensor (FBED2)
Rack
Shielding plate
Click on the first or last page to see other MX-5500N / MX-6200N / MX-7000N (serv.man17) service manuals if exist.