Original Detection Unit; Original Size Detection Pwb (Light Emitting Side); Original Size Detection Pwb (Light Receiving Side) - Sharp AR-M455N Service Manual

Signal
Code
name
LCD LCD unit
TOUCH Touch panel
ORSLED Document size detection light
emitting PWB
ORSPD Document size detection light
receiving PWB
OCSW OCSW SPF open/close detector
/CCFT /CCFT LCD backlight
No. Name
1 LVDS/INV PWB
2 Operation control PWB
C. Maintenance and parts replacement
No. Unit
a Original detection 1
unit
2
b Operation panel 1
unit
2
a-1
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)
4)
AR-M355N/M455N MAINTENANCE AND DETAILS OF EACH SECTION 7 - 64
Name
Display the each memu and the information.
Various adjustments and setting operation are
performed.
Generates the document size detection signal.
Generates the document size detection signal.
Document size detection trigger
LCD backlight
Generates the LCD display signal and a high voltage for the backlight.
Controls the display operation panel.
Parts
Original size detection PWB
(Light emitting side)
Original size detection PWB
(Light receiving side)
LVDS PWB
MFP operation PWB
a-2
b-2
b-1
b
2)
1)
Function/Operation
Function
3) Remove the document size detection PWB (Light emitting
side)
1)
2)
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)
1)
b. Operation panel unit
1) Remove the original exit tray.
2)
Type Note
Transmission type Sensor
CCFT cool CRT
1)
1)
3)
2)
2)
2)
3)
1)