DOWNLOAD Sharp MX-FN24 / MX-FN25 (serv.man2) Service Manual ↓ Size: 3.31 MB | Pages: 36 in PDF or view online for FREE

Model
MX-FN24 MX-FN25 (serv.man2)
Pages
36
Size
3.31 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / Service Manual
File
mx-fn24-mx-fn25-sm2.pdf
Date

Sharp MX-FN24 / MX-FN25 (serv.man2) Service Manual ▷ View online

MX-FN25  MECHANISM  3 – 9
10. Punch mechanism
Punching is performed for every sheet by punching two holes at the
rear edge of copy paper. 
For diagonal shift of copy paper, skew correction is made. For hori-
zontal shift, the punch unit is shifted accordingly. 
1)
Copy paper is discharged from the machine. 
2)
The finisher inlet sensor detects copy paper. 
3)
Copy paper is pushed against the finisher inlet roller to correct
diagonal skew.
4)
Diagonal skew is corrected and copy paper is transported. 
5)
The horizontal resist sensor detects horizontal shift of copy
paper. 
6)
The punch unit is moved by the detected quantity of horizontal
shift to complete punching. 
7)
The punch unit returns to the home position. 
11. Punch dust collection mechanism
Punch dust made by punching is moved to the front side of the
machine by the transport belt to fall into the punch dust holder. 
The height sensor of the punch dust collection unit detects the
punch dust height in the punch dust holder, detecting full. 
Machine paper exit roller
Finisher inlet roller
Inlet sensor
Horizontal resist sensor
Punch unit
Punch dust collection unit
Punch dust collection unit
Transport belt
Transport belt
Height sensor
Height sensor
MX-FN25  REPLACEMENT AND ADJUSTMENT  4 – 1
MX-FN25
Service Manual
 
[4] REPLACEMENT AND ADJUSTMENT
1. External cover replacement
1)
Open the front door, remove the screw (1 screw), and remove
the upper cover center. 
2)
Remove the upper cover. (2 screws)
3)
Remove the front door shaft bracket, and remove the front
door. (1 screw)
4)
Remove the left side cover. (2 screws)
5)
Remove the blind cover. 
6)
Remove the paper exit port cover. (2 screws)
7)
Remove the rear cover. (2 screws)
2. Tray assembly, left cover replacement
1)
Remove the rear cover. (Refer to the previous page.)
2)
Remove the tray assembly. (1 screw)
3)
Remove the tray cover. (1 screw for each)
4)
Remove the tray bracket. (4 screws, 1 step screw)
5)
Remove the end fence. (3 screws)
Point:
When assembling, open the front cover of the finisher and check to 
confirm the rib can be fixed with a screw.
Rear cover
Paper exit
port cover
Blind cover
Left side cover
Upper cover center
Upper cover
Front door
shaft bracket
Front cover
Upper cover center
Rib
Point:
When removing the tray assembly, since the top position is difficult to 
remove, hold the tray assembly with your hand and pull the gear in the 
ratchet section (1) to release the drive, and the tray can be moved down. 
(2)
When this gear is pulled toward you,
the drive is released.
Tray assembly
Tray cover
Tray bracket
Tray assembly
End fence
MX-FN25  REPLACEMENT AND ADJUSTMENT  4 – 2
3. Shift roller replacement
1)
Open the front door, and pull out the center binding staple unit. 
2)
Remove the snap fit, and remove the shift roller and the drive
belt. 
4. Rollers
A. DRAG ROLLER
1)
Above the shift tray, pull the roller mount [A] out.
2)
Remove the rollers [B] and [C] (
x 1 each)
5. Proof tray paper exit sensor 
replacement
1)
Remove the upper cover. 
2)
Remove the proof tray paper exit sensor bracket. (1 screw)
3)
Remove the proof tray paper exit sensor from the bracket. 
6. Shift tray paper surface sensor upper/
lower replacement
1)
Remove the upper cover. 
2)
Remove the shift tray paper surface sensor bracket. (1 screw)
3)
Remove the shift tray paper surface sensor upper/lower from
the bracket. (1 connector for each)
Shift roller
Shift roller
Snap fit
Center binding staple
[A]
[B]
[C]
Proof tray paper exit
sensor bracket
Proof tray paper
exit sensor
Shift tray paper
surface sensor bracket
Shift tray paper
surface sensor upper
Shift tray paper
surface sensor lower
MX-FN25  REPLACEMENT AND ADJUSTMENT  4 – 3
7. Shift tray paper exit sensor, proof tray 
paper surface sensor replacement
1)
Remove the rear cover, the upper cover, and the front door. 
2)
Remove the inner cover. (2 screws)
3)
Remove the spring. (Snap fit, 1 position)
4)
Remove the paper exit guide plate. (Connector 1 position, 
C-ring 1 position)
5)
Remove the paper exit sensor from the paper exit guide plate.
6)
Remove the guide plate. 
7)
Remove the paper surface sensor bracket from the guide
plate. (1 screw)
8)
Remove the proof tray paper surface sensor from the bracket. 
8. Finisher inlet sensor replacement
1)
Remove the finisher inlet sensor bracket. (1 screw)
2)
Remove the finisher inlet sensor from the bracket. 
9. Staple paper exit sensor replacement
1)
Remove the staple paper exit sensor bracket. (1 screw)
2)
Remove the staple paper exit sensor from the bracket. 
Inner cover
Connector
Shift tray paper exit sensor
Spring
Snap fit
Paper exit
guide plate
C-ring
Proof tray paper surface sensor
Paper surface sensor bracket
Guide plate
Finisher inlet sensor bracket
Finisher inlet sensor bracket
Staple paper exit sensor bracket
Staple paper
exit sensor
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