Read Sharp MX-FN14 Service Manual online
7
7
7-7
7-7
PUNCH
SECTION
PUNCH
SECTION
Control
composition
The
punch
section
is
composed
of
the
die
section
and
the
punch
blades.
T
h
e
p
u
n
c
h
b
la
d
e
s
ar
e
d
ri
ve
n
b
y
th
e
F
in
is
h
e
r
P
u
n
c
h
M
o
to
r
(F
P
M
).
T
h
e
r
ac
k
ge
ar
i
s
d
ri
ve
n
back
and
forth
by
the
Finisher
Punch
Motor
(FPM)
to
lift
the
punch
blades
through
the
punch
lift
indication
pin
to
make
punching.
T
h
e
h
o
m
e
p
o
si
ti
o
n
s
o
f
th
e
p
u
n
c
h
b
la
de
s
ar
e
d
e
te
c
te
d
by
t
h
e
F
in
is
h
e
r
P
u
n
c
h
P
o
si
ti
o
n
S
e
n
so
r2
(FPPS2)
and
the
Finisher
Puncher
Cam
Home
Position
Sensor
(FPCHPS),
and
the
lowering
positions
of
the
bunch
blades
are
detected
by
the
Finisher
Punch
Position
Sensor1
(FPPS1).
T
h
e
F
in
is
h
e
r
P
u
n
c
h
M
o
to
r
(F
P
M
)
is
a
D
C
m
o
to
r.
T
o
s
to
p
t
h
e
F
in
is
h
e
r
P
u
n
c
h
M
o
to
r
(F
P
M
)
c
o
rr
e
c
tl
y
at
t
h
e
h
o
m
e
p
o
si
ti
o
n
,
th
e
s
p
e
c
ifi
e
d
n
u
m
b
e
r
o
f
c
lo
c
ks
i
s
c
o
u
n
te
d
b
y
th
e
F
in
is
h
e
r
Punch
Motor
Rotation
Sensor
(FPMRS)
to
stop
the
punch
motor.
The
Finisher
paper
enter
detector
(FPED)
is
provided
at
the
inlet
section
of
the
punch
unit
to
detect
the
lead
edge
and
the
rear
edge
of
paper.
In
addition,
five
light-receiving
transistors
(photo
sensor
PWB)
are
provided
on
the
upper
side
of
the
inlet
paper
transport
path
of
the
punch
unit,
and
five
light
emitting
LED
(LED
PWB)
are
provided
on
the
lower
side,
which
act
as
fi
ve
sensors.
These
sensors
a
re
horizont
al
resist
sensors,
a
nd
used
t
o
det
ect
t
he
posit
ions
in
the
rear
edge
of
paper
for
punching.
The
punch
motor,
the
punch
section,
and
the
above
sensors
compose
the
punch
slide
unit,
and
they
are
moved
back
and
forth
according
to
the
paper
size
by
the
Finisher
Punch
Shift
Motor
(FPSM).
The
home
position
of
the
punch
slide
unit
is
detected
by
the
Finisher
Puncher
H
o
m
e
P
o
si
ti
o
n
S
e
n
so
r
(F
P
H
P
S
).
T
h
e
F
in
is
h
e
r
P
u
n
c
h
S
h
if
t
M
o
to
r
(F
P
S
M
)
is
a
2
-
p
h
a
se
stepping
motor.
T
he
pu
nch
mo
to
r
and
t
he
pu
nch
s
hi
ft
mo
to
r
ar
e
dr
iv
en
by
t
he
co
n
tr
o
l
si
gna
ls
f
ro
m
t
he
fi
n
is
h
er
controller
PWB
and
the
punch
driver
PWB.
Punch
dust
generated
by
punching
is
accumulated
in
the
punch
dust
container.
Punch
dust
fu
ll
is
d
e
te
c
te
d
b
y
th
e
r
e
fle
c
ti
o
n
-
ty
p
e
s
e
n
so
r
(L
E
D
1
/
P
T
1
o
n
t
h
e
F
in
is
h
e
r
P
u
n
c
h
D
u
st
F
u
ll
Sensor
PWB).
�
R
ac
k
ge
ar
P
un
ch
bl
ad
es
P
un
ch
bl
ad
es
D
ie
P
un
ch
sl
id
e
un
it
P
un
ch
er
ba
se
F-2-7F-2-7
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