Sharp MX-FN19 / MX-FN20 / MX-PN12 (serv.man2) Service Manual ▷ View online
MX-FN19 MAINTENANCE 4 – 40
3) Disconnect all the connectors [9] of the finisher controller PCB.
4) Remove the four screws [10] to remove the finisher controller
4) Remove the four screws [10] to remove the finisher controller
PCB base [11].
5) Release the pawl [13] of the clutch [12] on the back of the
delivery roller, and remove the clutch [12].
6) Remove the E-ring [14] and the bearing [15], and remove the
delivery roller.
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.
l. Removal of return roller
CAUTION: Aging treatment is applied to the return roller in order to
prevent against an increase in feed power. If the roller is
wiped with wet cloth, feed power is increased to cause a
feed trouble. Therefore, do not clean the return roller.
When installing the return roller, avoid touching the
roller surface as far as possible.
wiped with wet cloth, feed power is increased to cause a
feed trouble. Therefore, do not clean the return roller.
When installing the return roller, avoid touching the
roller surface as far as possible.
1)
Remove the clips [1] of the return roller shaft at two positions.
2)
Pull out the return roller shaft, and remove the two return roll-
ers [2] together with the collar.
ers [2] together with the collar.
3)
Separate the return roller and the collar.
CAUTION: When installing the return roller, be careful of the install-
ing direction. If it is installed in the wrong direction, the
stack capacity is reduced.
stack capacity is reduced.
Front side: Black
Back side: White
Back side: White
(6) Return roller unit
a. Removal of front cover
1)
1)
Open the front cover [1], and remove the clip [2].
2)
Lift the front cover [1], and remove it.
[10]
[11]
[9]
[10]
[13]
[14] [15]
[12]
[18]
[17]
[19]
[18]
[16]
[1]
[2]
[1]
㪝㫉㫆㫅㫋
㪙㪸㪺㫂
FN19
[1]
[2]
FN20
MX-FN19 MAINTENANCE 4 – 41
b. Removal of rear cover
1) Remove the screws [1] (three screws (FN19), six screws
1) Remove the screws [1] (three screws (FN19), six screws
(FN20)), and lift and remove the rear cover [2].
c. Removal of front inside lower cover (FN19)
1) Remove the screw [1], and remove the leg cover [2].
1) Remove the screw [1], and remove the leg cover [2].
2) Remove the three screws [3], and shift the front inside lower
cover [4] to the left side, and remove it.
d. Removal of saddle inlet front inside cover (FN20)
1)
1)
Remove the three screws [1], and remove the saddle inlet front
inside cover [2].
inside cover [2].
e. Removal of front inside upper cover
1)
1)
Remove the four screws [1], and remove the front inside upper
cover [2].
cover [2].
FN19
FN20
[1]
[2]
[1]
[1]
[2]
[1]
FN19
FN20
MX-FN19 MAINTENANCE 4 – 42
f. Removal of left upper cover
1) Remove the two screws [1].
2) With the upper door [2] open, tilt the left upper cover [3] to the
1) Remove the two screws [1].
2) With the upper door [2] open, tilt the left upper cover [3] to the
right, and remove it.
CAUTION: When installing, be sure to engage the two pawls [4] of
the left upper cover with the metal plates.
g. Removal of grate-shaped upper guide
1) Move down the tray [1] lower than the grate-shaped upper
1) Move down the tray [1] lower than the grate-shaped upper
guide [2]. (For moving of the tray, refer to "Removal of No. 1
tray")
tray")
2) Remove the five screws [3], and remove the grate-shaped
upper guide [2].
h. Removal of No. 1 tray
CAUTION: Note for installing or moving the tray
When moving down the tray, push up the shutter [1],
and release the latch [2] on the lower surface of the tray
to lower the tray.
When the latch is released, the tray will free-fall. Hold
the tray with your hand during the removal.
and release the latch [2] on the lower surface of the tray
to lower the tray.
When the latch is released, the tray will free-fall. Hold
the tray with your hand during the removal.
1)
Remove the screw [1], and remove the metal plate [2] and the
slide guide [3]. If the grate-shaped upper guide has been
removed, this procedure is unnecessary.
slide guide [3]. If the grate-shaped upper guide has been
removed, this procedure is unnecessary.
2)
Remove the screw [4], and remove the stopper [5].
[3]
[2]
[1]
[4]
[3]
[2]
[1]
[2]
[1]
[1]
[3]
[2]
[5]
[4]
MX-FN19 MAINTENANCE 4 – 43
3) Remove the two screws [6], open the harness holder [7] at
three positions, and disconnect the connector [8] at two posi-
tions.
tions.
4) Insert your finger into the hole in the back of the No. 1 tray [9].
Push the tray lift motor gear [10] toward you to release the
clutch, and lift the No. 1 tray [9].
clutch, and lift the No. 1 tray [9].
CAUTION: When the clutch of the tray lift motor gear is released, it
falls by its own weight. When releasing the clutch,
therefore, hold the tray at the bottom in advance. When
installing it, take care not to twist the tray cable.
therefore, hold the tray at the bottom in advance. When
installing it, take care not to twist the tray cable.
i. Removal of No. 2 tray
CAUTION: Note for installing or moving the tray
When moving down the tray, push up the shutter [1],
and release the latch [2] on the lower surface of the tray
to lower the tray.
When the latch is released, the tray will free-fall. Hold
the tray with your hand during the removal.
and release the latch [2] on the lower surface of the tray
to lower the tray.
When the latch is released, the tray will free-fall. Hold
the tray with your hand during the removal.
1)
Remove the screw [1], and remove the stopper [2].
2)
Remove the two screws [3], and disconnect the connector [4].
3)
Insert your finger into the hole in the back of the No.2 tray [5].
Push the tray lift motor gear [6] toward you to release the
clutch, and lift the No.2 tray [5].
Push the tray lift motor gear [6] toward you to release the
clutch, and lift the No.2 tray [5].
CAUTION: When the clutch of the tray lift motor gear is released, it
falls by its own weight. When releasing the clutch,
therefore, hold the tray at the bottom in advance. When
installing it, take care not to twist the tray cable.
therefore, hold the tray at the bottom in advance. When
installing it, take care not to twist the tray cable.
[7]
[8]
[6]
[6]
[9]
[10]
[2]
[1]
[2]
[1]
[4]
[3]
[3]
[5]
[6]
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