DOWNLOAD Sharp AR-M351N / AR-M451N (serv.man4) Service Manual ↓ Size: 17.31 MB | Pages: 127 in PDF or view online for FREE

Model
AR-M351N AR-M451N (serv.man4)
Pages
127
Size
17.31 MB
Type
PDF
Document
Service Manual
Brand
Device
Copying Equipment / ARM351N-451N Service Manual
File
ar-m351n-ar-m451n-sm4.pdf
Date
PREV: Sharp AR-M351N / AR-M451N (serv.man3) Service Manual / Specification

Sharp AR-M351N / AR-M451N (serv.man4) Service Manual ▷ View online

AR-M351N/M451N  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 64
C. Maintenance and parts replacement
a. Original detection unit
a-1. Original size detection PWB (Light emitting side)
1) Remove the rear cabinet. 
2) Remove the original detection unit (Light emitting side).
3) Remove the document size detection PWB (Light emitting
side)
a-2. Original size detection PWB (Light receiving side)
1) Remove the operation panel lower cabinet. 
2) Remove the original size detection PWB (Light receiving side)
b. Operation panel unit
1) Remove the original exit tray.
Code
Signal 
name
Name
Function/Operation
Type
Note
LCD
LCD unit
Display the each memu and the information.
TOUCH
Touch panel
Various adjustments and setting operation are 
performed.
ORSLED
Document size detection light 
emitting PWB
Generates the document size detection signal.
ORSPD
Document size detection light 
receiving PWB
Generates the document size detection signal.
OCSW
OCSW
SPF open/close detector
Document size detection trigger
Transmission type Sensor
/CCFT
/CCFT
LCD backlight
LCD backlight
CCFT cool CRT
No.
Name
Function
1
LVDS/INV PWB
Generates the LCD display signal and a high voltage for the backlight. 
2
Operation control PWB
Controls the display operation panel. 
No.
Unit
Parts
a
Original detection 
unit
1
Original size detection PWB 
(Light emitting side)
2
Original size detection PWB 
(Light receiving side)
b
Operation panel 
unit
1
LVDS PWB
2
MFP operation PWB
a-1
b-2
b-1
a-2
b
1)
2)
3)
4)
1)
1)
1)
2)
3)
3)
2)
1)
2)
2)
1)
2)
AR-M351N/M451N  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 65
2) Remove the scanner left cabinet.
3) Remove the scanner right cabinet.
4) Remove the operation panel lower cabinet.
5) Remove the harnesses.
6) Remove the operation panel unit.
b-1. LVDS PWB
1) Remove the operation panel unit.
2) Remove the connector and the screw, and remove the LVDS
PWB.
b-2. MFP operation PWB
1) Remove the operation panel unit. 
2) Remove the MFP operation PWB
1)
1)
2)
1)
2)
1)
1)
2)
1)
1)
 1) 
 1) 
 1) 
 2) 
1)
1)
2)
2)
3)
1)
1)
2)
2)
2)
2)
AR-M351N/M451N  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 66
9. Filter
A. Maintenance and parts replacement
(1) Maintenance list
(2) Maintenance and parts replacement
a-1. Ozone filter
1) Remove the paper exit tray cabinet cover, and remove the
ozone filter.
Unit name
No.
Part name
When 
calling
100K
200K
300K
400K
500K
600K
700K
800K
Remark
Filters
1
Ozone filter
▲
▲
▲
▲
▲
▲
▲
▲
1
No.
Unit
Parts
a
1
Ozone filter
▲
AR-M351N/M451N  MAINTENANCE AND DETAILS OF EACH SECTION  7 - 67
10. Drive section
A. Maintenance and parts replacement
(1) Maintenance list
(2) Maintenance and parts replacement
a. Drive unit
1) Remove the screw, and remove the left door.
2) Remove the screw, and remove the rear cabinet.
Unit name
No.
Part name
When 
calling
100K
200K
300K
400K
500K
600K
700K
800K
Remark
Drive section
1
Gears (Specified position)
✕
✩
✩
✩
✩
✩
✩
✩
✩
1
1
1
No.
Unit
Parts
a
Drive unit
1
Gears
✕✩
2
Paper cassette paper feed clutch
3
Paper transport clutch
4
Resist roller clutch
b
1
Drum motor
2
Main motor
a-2
b-1
a-4
a
a-3
b-2
a-1
a-1
a-1
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