Sharp MX-FN19 / MX-FN20 Service Manual ▷ View online
MX-FN19 MAINTENANCE 4 – 64
7) Disconnect the connector [16], and remove the harness from
the clamp and the edge saddle [17].
8) Remove the two screws [18], and pull out the stapling tray [19]
in the delivery direction.
CAUTION: When removing parts in the stapling tray, do not apply a
force to the alignment plates (front/back) and the three
positions on the rear edge regulation plate.
positions on the rear edge regulation plate.
m. Removal of swing unit discharge needle
1) Remove the screw [1] which is fixing the discharge needle at
1) Remove the screw [1] which is fixing the discharge needle at
the center of the swing unit.
2) Remove the two screws [2] which are fixing the earth wire of
the delivery side discharge needle.
3) Pull out the discharge needle [3] at the center of the swing unit
from the bottom.
4) Disengage the pawls [4] (at four positions) which are fixing the
discharge needle on the delivery side. Remove the two dis-
charge needles [5].
charge needles [5].
(3) Discharge needle 2
a. Removal of inlet port discharge needle
1)
1)
Open the upper door, and release the hook that links the upper
door and the inlet upper guide.
door and the inlet upper guide.
2)
Remove the two screws [1], and remove the right side section
[2] of the inlet upper guide.
[2] of the inlet upper guide.
3)
Remove the three screws [3], and remove the inlet discharge
needle [4].
needle [4].
(4) Saddle stitcher controller PCB (FN20)
a. Removal of PCB cover
1)
1)
Remove the seven screws [1], and remove the PCB cover [2].
[18]
[17]
[19]
[18]
[16]
[1]
[2]
[4]
[3]
[5]
[4]
[2]
[1]
[3]
[4]
[1]
[1]
[2]
MX-FN19 MAINTENANCE 4 – 65
b. Removal of saddle stitcher controller PCB
1) Remove the four screws [1] and sixteen connectors [2].
1) Remove the four screws [1] and sixteen connectors [2].
Remove the saddle stitcher controller PCB [3].
3. Punch module (MX-PN12A/B/C/D)
A. Outer cover
(1) Rear cover
a. Removing the rear cover
1) Remove the three screws [1] to remove the rear cover [2].
1) Remove the three screws [1] to remove the rear cover [2].
(2) Upper cover
a. Removing the rear cover
1) Remove the three screws [1] to remove the rear cover [2].
1) Remove the three screws [1] to remove the rear cover [2].
b. Removing the upper cover
1)
1)
Open the front door [1], and remove the three screws [2]. Pull
out the dial [3], and remove the upper cover [4].
out the dial [3], and remove the upper cover [4].
(3) Right guide
a. Removing the right guide
1)
1)
Remove the four screws [1] to remove the right guide [2].
B. Drive system
(1) Punch motor
a. Removing rear cover
1)
1)
Remove the three screws [1] to remove the rear cover [2].
[1]
[1]
[1]
[1]
[2]
[3]
[1]
[2]
[1]
[2]
[2]
[1]
[4]
[3]
[4]
[2]
[1]
[2]
[1]
[2]
MX-FN19 MAINTENANCE 4 – 66
b. Removing the upper cover
1) Open the front door [1], and remove the three screws [2]. Pull
1) Open the front door [1], and remove the three screws [2]. Pull
out the dial [3], and remove the upper cover [4].
c. Removing punch motor
1) Disconnect the connector [1].
2) Remove the two screws [2] to remove the punch motor [3].
1) Disconnect the connector [1].
2) Remove the two screws [2] to remove the punch motor [3].
(2) Horizontal registration motor
a. Removing rear cover
1) Remove the three screws [1] to remove the rear cover [2].
1) Remove the three screws [1] to remove the rear cover [2].
b. Removing right guide
1)
1)
Remove the four screws [1] to remove the right guide [2].
c. Removing horizontal registration motor
1)
1)
Disconnect the connector [1].
2)
Remove the two screws [2], and slide the horizontal registra-
tion motor [3] in the arrow direction to remove it.
tion motor [3] in the arrow direction to remove it.
(3) Punch module
a. Caution for removing punch module
CAUTION: The punch module may be opened during removal.
Open the punch module in advance, if necessary.
b. Removing rear cover
1)
1)
Remove the three screws [1] to remove the rear cover [2].
[2]
[1]
[4]
[3]
[4]
[2]
[2]
[3]
[1]
[1]
[2]
[1]
[2]
[1]
[2]
[2] [3]
[1]
[2]
MX-FN19 MAINTENANCE 4 – 67
c. Removing right guide
1) Remove the four screws [1] to remove the right guide [2].
1) Remove the four screws [1] to remove the right guide [2].
d. Removing the upper cover
1) Open the front door [1], and remove the three screws [2]. Pull
1) Open the front door [1], and remove the three screws [2]. Pull
out the dial [3], and remove the upper cover [4].
e. Removing punch module
1) Remove the E-ring [1], washer [2], and the punch spring [3].
1) Remove the E-ring [1], washer [2], and the punch spring [3].
2)
Turn the gear [1] in the arrow direction, and move the punch
module [2] to the front.
module [2] to the front.
3)
Remove the three screws [1] and the sensor base (upper) [2].
Then, disconnect the connector of the photo sensor PCB [3].
Then, disconnect the connector of the photo sensor PCB [3].
4)
Disconnect the connector [1], and remove the screw [2]. Then,
remove the horizontal registration home position sensor [3].
remove the horizontal registration home position sensor [3].
[1]
[2]
[2]
[1]
[4]
[3]
[4]
[2]
[3]
[1]
[2]
[1]
[2]
[2]
[1]
[1]
[3]
[2]
[1]
[3]
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