Sharp MX-FNX2 (serv.man7) Service Manual ▷ View online
MX-FNX2/AR-PN1/MX-RBX1 OPERATIONAL DESCRIPTION 5 – 13
F. Punch Unit (AR-PN1A/B/C/D)
(1) Basic Operations
a. Outline
The punch unit is an option, and is designed for installation to the
pickup assembly of the finisher.
The punch unit is not equipped with a paper feeding mechanism,
and the sheets from the host machine move through the punch unit
and then the feed system of the finisher. When the trailing edge of a
sheet from the host machine reaches the punch unit, the sheet is
stopped once, and the punch shaft is rotated to punch a hole along
the trailing edge. These operations are controlled with various com-
mands from the finisher controller PCB as well as the commands
from the punch controller PCB.
The punch unit is an option, and is designed for installation to the
pickup assembly of the finisher.
The punch unit is not equipped with a paper feeding mechanism,
and the sheets from the host machine move through the punch unit
and then the feed system of the finisher. When the trailing edge of a
sheet from the host machine reaches the punch unit, the sheet is
stopped once, and the punch shaft is rotated to punch a hole along
the trailing edge. These operations are controlled with various com-
mands from the finisher controller PCB as well as the commands
from the punch controller PCB.
(2) Punching Operation
a. Outline
The punch unit is located in the pickup assembly of the finisher,
and is used to punch holes in sheets that have been sent from the
host machine and stopped inside it. When the trailing edge of a
sheet reaches the punch unit, the inlet roller of the finisher assem-
bly stops the sheet to punch a hole along the trailing edge of the
sheet.
The punch unit consists of a die and hole puncher (punch blade).
The hole puncher is driven by the punch motor (FPNM). It is
attached to the eccentric cam of the punch shaft, and the rotation of
the punch shaft is converted into reciprocating motion for punching
operation.
The punch motor (FPNM) is a DC motor. The home position of the
punch shaft is detected by the punch home position sensor
(FPHPD). To make sure that the punch motor (FPNM), which is a
DC motor, stops exactly at its home position, the punch motor
(FPNM) is stopped in relation to the count of the clock pulses kept
by the punch motor lock sensor (FPMCK). A single punching oper-
ation is executed by rotating the punch shaft 180
The punch unit is located in the pickup assembly of the finisher,
and is used to punch holes in sheets that have been sent from the
host machine and stopped inside it. When the trailing edge of a
sheet reaches the punch unit, the inlet roller of the finisher assem-
bly stops the sheet to punch a hole along the trailing edge of the
sheet.
The punch unit consists of a die and hole puncher (punch blade).
The hole puncher is driven by the punch motor (FPNM). It is
attached to the eccentric cam of the punch shaft, and the rotation of
the punch shaft is converted into reciprocating motion for punching
operation.
The punch motor (FPNM) is a DC motor. The home position of the
punch shaft is detected by the punch home position sensor
(FPHPD). To make sure that the punch motor (FPNM), which is a
DC motor, stops exactly at its home position, the punch motor
(FPNM) is stopped in relation to the count of the clock pulses kept
by the punch motor lock sensor (FPMCK). A single punching oper-
ation is executed by rotating the punch shaft 180
° from its home
position.
As many as five light-receiving transistors (photosensor PCB) are
mounted over the inlet paper path of the punch unit; on the other
hand, as many as five LEDs (LED PCB) are mounted under the
path, together serving as five sensors. The frontmost sensor
(LED5, PT5) is used as a trailing edge sensor (FPTD) to detect the
training edge of sheets, and the remaining four (LED1 through
LED4, PT1 through PT4) are used as horizontal registration sen-
sors (FPSD1 through FPSD4) to detect the rear position of sheets
when punching holes.
As many as five light-receiving transistors (photosensor PCB) are
mounted over the inlet paper path of the punch unit; on the other
hand, as many as five LEDs (LED PCB) are mounted under the
path, together serving as five sensors. The frontmost sensor
(LED5, PT5) is used as a trailing edge sensor (FPTD) to detect the
training edge of sheets, and the remaining four (LED1 through
LED4, PT1 through PT4) are used as horizontal registration sen-
sors (FPSD1 through FPSD4) to detect the rear position of sheets
when punching holes.
The punch motor (FPNM), punch unit, and sensors make up the
punch slide unit, which moves to the front/rear to suit the selected
paper size. The movement to the front/rear is driven by the punch
horizontal registration motor (FPSM). The home position of the
punch slide unit is detected by the punch horizontal registration
home position sensor (FPSHPD), and the punch horizontal regis-
tration motor (FPSM) is a stepping motor.
The punch motor (FPNM) and punch horizontal registration motor
(FPSM) are controlled with various commands from the finisher
controller PCB as well as the commands from the punch controller
PCB. The waste paper occurring as the result of punching is col-
lected in the waste paper case. The case is monitored by the
LED121 on the waste full LED PCB and PT131 on the waste full
photosensor PCB (FPDD).
punch slide unit, which moves to the front/rear to suit the selected
paper size. The movement to the front/rear is driven by the punch
horizontal registration motor (FPSM). The home position of the
punch slide unit is detected by the punch horizontal registration
home position sensor (FPSHPD), and the punch horizontal regis-
tration motor (FPSM) is a stepping motor.
The punch motor (FPNM) and punch horizontal registration motor
(FPSM) are controlled with various commands from the finisher
controller PCB as well as the commands from the punch controller
PCB. The waste paper occurring as the result of punching is col-
lected in the waste paper case. The case is monitored by the
LED121 on the waste full LED PCB and PT131 on the waste full
photosensor PCB (FPDD).
Finisher
u
nit
control
system
Punch controller PCB
Punch drive system
Horizontal registration
drive system
Punch
m
otor
(FPNM)
drive
signal
Punch controller PCB (1/2)
W
a
ste
full
d
etection
signal
(LED121,PT131)
FPDD
Punch
h
ome
position
s
ensor
d
etection
s
ignal
(FPHPD)
Horizontal
registration
h
ome
position
(FPSHPD)
detection
s
ignal
SREGHP
Punch controller PCB (2/2)
Punch
m
otor
lock
sensor
(FPMCK
)
detection
signal
PUNCHCLK
PT1
LED1
2
3
4
5
5
2
3
4
T
railing
edge
detection
s
ignal
(LED5,
P
T5)
F
PTD
Horizontal
registration
d
etection
signal
(LED1
-
4,
PT1
-
4)
FPSD1
-
4
Horizontal
registration
motor
(FPSM)
drive
s
ignal
PT131
LED121
MX-FNX2/AR-PN1/MX-RBX1 OPERATIONAL DESCRIPTION 5 – 14
b. Punching Operation
The hole puncher is driven by the punch motor (FPNM). The home
position for the hole puncher is detected by the punch home posi-
tion sensor (FPHPD).
The punch unit comes in four types, selected to suit the country of
installation: 2-hole (Punch Unit-J1), 2- and 3-hole (Punch Unit-K1),
or two types of 4-hole (Punch Unit-G1, Punch Unit-H1).
The 2-hole and 4-hole types punch a hole when the punch shaft is
rotated 180
The hole puncher is driven by the punch motor (FPNM). The home
position for the hole puncher is detected by the punch home posi-
tion sensor (FPHPD).
The punch unit comes in four types, selected to suit the country of
installation: 2-hole (Punch Unit-J1), 2- and 3-hole (Punch Unit-K1),
or two types of 4-hole (Punch Unit-G1, Punch Unit-H1).
The 2-hole and 4-hole types punch a hole when the punch shaft is
rotated 180
° from the home position, causing the punch to make a
single round trip. The 2-/3-hole type punches a hole, but the cir-
cumference of the punch shaft is divided into two (half for 2-hole
and the other half for 3-hole).
1)
cumference of the punch shaft is divided into two (half for 2-hole
and the other half for 3-hole).
1)
2-Hole, 4-Hole Type
The home position is identified when the punch home position
sensor (FPHPD) is ON. The punching operation for the first
sheet ends when the punch shaft has rotated 180
The home position is identified when the punch home position
sensor (FPHPD) is ON. The punching operation for the first
sheet ends when the punch shaft has rotated 180
° and the
punch home position sensor (FPHPD) goes ON; the punching
operation for the second sheet ends when the punch shaft has
rotated 180
operation for the second sheet ends when the punch shaft has
rotated 180
° in reverse and the punch home position sensor
(FPHPD) goes ON.
<1> A hole is punched along the trailing edge of the 1st sheet.
<1> A hole is punched along the trailing edge of the 1st sheet.
<2> A hole is made along the trailing edge of the 2nd sheet.
2)
2-/3-Hole Type
The home position is identified when the punch home position
sensor (FPHPD) is ON. To make two holes, the punching oper-
ation for the first sheet ends when the punch shaft rotates 180
The home position is identified when the punch home position
sensor (FPHPD) is ON. To make two holes, the punching oper-
ation for the first sheet ends when the punch shaft rotates 180
°
(half circumference) and the punch home position sensor
(FPHPD) goes ON. At this time, the 3-hole puncher makes a
single round trip in escape direction (moving up the hole
puncher) on a half circumference of the punch shaft. The
punching operation for the second sheet ends when the punch
shaft has rotated 180
(FPHPD) goes ON. At this time, the 3-hole puncher makes a
single round trip in escape direction (moving up the hole
puncher) on a half circumference of the punch shaft. The
punching operation for the second sheet ends when the punch
shaft has rotated 180
° counterclockwise and the punch home
position sensor (FPHPD) goes ON (half circumference).
At this time, the 3-hole puncher makes a single round trip in
escape direction (moving up the hole puncher) on the other
half circumference of the punch shaft.
The punching operation takes place as follows when making
two holes in two sheets of paper:
At this time, the 3-hole puncher makes a single round trip in
escape direction (moving up the hole puncher) on the other
half circumference of the punch shaft.
The punching operation takes place as follows when making
two holes in two sheets of paper:
<1> A hole is made along the trailing edge of the 1st sheet.
While two holes are being made, the 3-hole puncher
makes a single round trip in escape direction.
makes a single round trip in escape direction.
<2> Holes are made along the trailing edge of the 2nd sheet.
While two hole are being made, the 3-hole puncher makes
a single round trip in escape direction (moving up the hole
puncher).
a single round trip in escape direction (moving up the hole
puncher).
(punch shaft at rest/
home position)
(punch shaft CW rotation
by 90°/hole made)
(punch shaft CW rotation by 180°/
end ofpunching operation)
Sensor flag
Punch home position
sensor (FPHPD)
sensor (FPHPD)
Punch shaft
Eccentric cam
Hole
puncher
puncher
Die
Die
Paper
Waste paper
(punch shaft at rest/
home position)
(punch shaft CW rotation
by 90°/hole made)
(punch shaft CW rotation by 180°/
end of punching operation)
Sensor flag
Punch shaft
Eccentric cam
Hole
puncher
puncher
Die
Die
Paper
Waste paper
Punch home position
sensor (FPHPD)
sensor (FPHPD)
(punch shaft at rest/
home position)
(punch shaft CW rotation
by 90°/hole made)
(punch shaft CW rotation by 180°/
end of punching operation)
Sensor flag
Punch shaft
Eccentric cam
Hole
puncher
puncher
Die
Die
Paper
Waste paper
Punch home position
sensor (FPHPD)
sensor (FPHPD)
(punch shaft at rest/
home position)
(punch shaft CW rotation by 90°/
punch at upper limit)
(punch shaft CW rotation by 180°/
punch back to initial position)
(punch shaft at rest/
home position)
(punch shaft CCW rotation
by 90°/hole made)
(punch shaft CCW rotation by 180°/
end of punching operation)
(punch shaft CCW rotation by
90°/punch at upper limit)
(punch CCW rotation by 180°/
punch back at initial position)
(punch shaft at rest/
home position)
MX-FNX2/AR-PN1/MX-RBX1 OPERATIONAL DESCRIPTION 5 – 15
(3) Horizontal Registration Operation
The horizontal registration drive for the punch slide unit is provided
by the punch horizontal registration motor (FPSM). The home posi-
tion of the punch slide unit is detected by the punch horizontal reg-
istration home position sensor (FPSHPD). The punch slide unit
detects the trailing edge of sheets using the trailing edge sensor
(FPTD) and the horizontal registration sensors (FPSD1 through 4),
and causes a move to a specific position matching the trailing edge
of each sheet (in relation to the size of the sheet).
The horizontal registration operation takes place as follows:
1)
by the punch horizontal registration motor (FPSM). The home posi-
tion of the punch slide unit is detected by the punch horizontal reg-
istration home position sensor (FPSHPD). The punch slide unit
detects the trailing edge of sheets using the trailing edge sensor
(FPTD) and the horizontal registration sensors (FPSD1 through 4),
and causes a move to a specific position matching the trailing edge
of each sheet (in relation to the size of the sheet).
The horizontal registration operation takes place as follows:
1)
When the leading edge of a sheet from the host machine is
detected by the trailing edge sensor (FPTD), the punch hori-
zontal registration motor (FPSM) starts to move the punch
slide unit toward the front.
detected by the trailing edge sensor (FPTD), the punch hori-
zontal registration motor (FPSM) starts to move the punch
slide unit toward the front.
2)
When the horizontal registration sensor (FPSD1 through 4)
suited to the paper size signal from the host machine detects
the rear edge of the sheet, the punch horizontal registration
motor (FPSM) causes a farther move to a specific position,
and stops the punch slide unit.
suited to the paper size signal from the host machine detects
the rear edge of the sheet, the punch horizontal registration
motor (FPSM) causes a farther move to a specific position,
and stops the punch slide unit.
3)
When the trailing edge sensor (FPTD) detects the trailing edge
of the sheet, the drive of the feed motor (FFM) is stopped,
thereby stopping the sheet. Then, the punch motor (FPNM) is
driven to punch holes in the sheet.
of the sheet, the drive of the feed motor (FFM) is stopped,
thereby stopping the sheet. Then, the punch motor (FPNM) is
driven to punch holes in the sheet.
4)
When the punching operation ends, the feed motor (FFM) of
the fisher unit is driven and, at the same time, the punch hori-
zontal registration motor (FPSM) is rotated in reverse to return
the punch slide unit to its home position.
the fisher unit is driven and, at the same time, the punch hori-
zontal registration motor (FPSM) is rotated in reverse to return
the punch slide unit to its home position.
5)
For each sheet that arrives in succession, the punch slide unit
is returned to its home position, and is caused to repeat steps
1 through 4.
is returned to its home position, and is caused to repeat steps
1 through 4.
G. Detecting Jams
(1) Outline
The microprocessor (CPU) on the finisher controller PCB is pro-
grammed to check for jams in the finisher/saddle/puncher (option)
at such times as set in advance. It identifies a jam in reference to
the presence/absence of paper at a specific sensor. If a jam is
found, the finisher controller PCB communicates the nature of the
jam to the host machine in the form of a code(which may be
checked in service mode of the host machine).
grammed to check for jams in the finisher/saddle/puncher (option)
at such times as set in advance. It identifies a jam in reference to
the presence/absence of paper at a specific sensor. If a jam is
found, the finisher controller PCB communicates the nature of the
jam to the host machine in the form of a code(which may be
checked in service mode of the host machine).
Punch side resist motor
(FPSM)
(FPSM)
(direction of
paper delivery)
Punch slide unit
Trailing edge sensor
(FPTD)
(FPTD)
Paper
Punch side resist home position sensor
(FPSHPD)
(FPSHPD)
Horizontal registration sensor 1 (FPSD1);
used to detect the edge of sheets of A3, A4,
8.5" x 11", 11" x 17".
used to detect the edge of sheets of A3, A4,
8.5" x 11", 11" x 17".
Horizontal registration sensor 2 (FPSD2);
used to detect the edge of sheets of B4, B5,
8.5" x 11"R, 8.5" x 14".
used to detect the edge of sheets of B4, B5,
8.5" x 11"R, 8.5" x 14".
Horizontal registration sensor 3 (FPSD3);
used to detect the edge of sheets of A4R.
used to detect the edge of sheets of A4R.
Horizontal registration sensor 4 (FPSD4);
used to detect the edge of sheets of B5R.
used to detect the edge of sheets of B5R.
Punch
: CW rotation
: CCW rotation
Feed motor (FFM)
Trailing edge sensor
(FPTD)
(FPTD)
Horizontal registration
sensor (FPSD1 - 4)
sensor (FPSD1 - 4)
Punch home position
sensor (FPHPD)
sensor (FPHPD)
Punch horizontal registration
home position sensor (FPSHPD)
home position sensor (FPSHPD)
Punch horizontal
registration motor (FPSM)
registration motor (FPSM)
Punch motor (FPNM)
FFPD
FED
FAD
FPHPD
FED
FAD
FFPD
FPHPD
FAD
FFPD
FPHPD
: Entry paper sensor
: Alignment tray sensor
: Bookbinding position sensor
: Punch home position sensor
: Alignment tray sensor
: Bookbinding position sensor
: Punch home position sensor
MX-FNX2/AR-PN1/MX-RBX1 OPERATIONAL DESCRIPTION 5 – 16
a. Inlet Paper Sensor (FED) Delay Jam
* Variable depending on the paper size. (Because the paper feed speed may differ according to the paper size. (A4:1.0 sec.))
b. Inlet Paper Sensor (FED) Stationary Jam
* Variable depending on the paper size. (Because the paper feed speed may differ according to the paper size. (A4:1.4 sec.))
c. Binding Position Sensor (FFPD) Delay Jam
d. Binding Position Sensor (FFPD) Stationary Jam
e. Power-On Jam
Paper is detected inside the finisher at power-on or when the door is closed.
Paper is detected inside the finisher at power-on or when the door is closed.
f. Door Open Jam
The finisher is disconnected from its host machine or the front door, or the upper cover is opened while the system is in operation (paper on the
move).
The finisher is disconnected from its host machine or the front door, or the upper cover is opened while the system is in operation (paper on the
move).
g. Staple Jam
The staple drive home position sensor (FSHPD) does not go OFF 600 msec after the stapler is driven. Or, it does not return to its home position
(where the sensor goes ON).
The staple drive home position sensor (FSHPD) does not go OFF 600 msec after the stapler is driven. Or, it does not return to its home position
(where the sensor goes ON).
Feed motor (FFM)
Entry paper sensor
(FED)
(FED)
Jam check
Feed motor (FFM)
Entry paper sensor
(FED)
(FED)
Jam check
Normal
Jam
approx. 1.0sec.
*
Host machine delivery signal
approx. 1.0sec.
*
Host machine delivery signal
Feed motor (FFM)
Entry paper sensor
(FED)
(FED)
Jam check
Entry paper sensor
(FED)
(FED)
Jam check
Normal
Jam
approx. 1.4sec.
*
Feed motor (FFM)
approx. 1.4sec.
*
Binding position
sensor (FFPD)
sensor (FFPD)
Jam check
Binding position
sensor (FFPD)
sensor (FFPD)
Jam check
Normal
Jam
1080 ms
Stack delivery motor
(FAM)
(FAM)
Stack delivery motor
(FAM)
(FAM)
1080 ms
Staple motor (FFSM)
Binding position
sensor (FFPD)
sensor (FFPD)
Jam check
Binding position
sensor (FFPD)
sensor (FFPD)
Jam check
Normal
Jam
approx. 16.2sec.
approx. 16.2sec.
Staple motor (FFSM)
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