MX-2300N, MX-2700N, MX-2300G, MX-2700G, MX-2300FG, MX-2700FG (serv.man11). Service Manual MX-RPX1 - Sharp Copying Equipment Service Manual (repair manual). Page 6

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MX-RPX1  EXTERNAL VIEW AND INTERNAL STRUCTURE  4 – 2
B. Sensors and switches
No.
Signal
Name
Type
Function/operation
Active condition
1
SCOV
SPF cover SW
Microswitch
Detects open/close of the paper feed 
cover.
H level at cover open.
2
SPPD1
SPF paper entry detection 1 sensor 
(Commonly used for random detection)
Transmission 
type
Detects paper entry and the paper size in 
random feed.
H level when paper is detected.
3
SPPD2
SPF paper entry detection 2 sensor 
(PS front)
Transmission 
type
Detects paper in front of the PS roller.
H level when paper is detected.
4
SPPD3
SPF scan front sensor
Transmission 
type
Detects paper in front of the scan position.
H level when paper is detected.
5
SOCD
SPF open/close sensor
Transmission 
type
Detects open/close of the RSPF.
L level when the RSPF is closed.
6
SPPD5
SPF reverse rear sensor
Transmission 
type
Detects reversed paper.
H level when paper is detected.
7
SPPD4
SPF reverse gate front detection
Transmission 
type
Detects paper in front of the reverse gate. 
H level when paper is detected.
8
SPED
SPF document empty sensor
Transmission 
type
Detects paper empty on the tray.
H level when paper is detected.
9
SPWS
SPF document width sensor
Volume 
resistance
Detects the document width on the tray.
10
SPLS1
SPF document length short sensor
Transmission 
type
Detects the document length on the tray.
H level when paper is detected.
11
SPLS2
SPF document length long sensor
Transmission 
type
Detects the document length on the tray.
H level when paper is detected.
12
STMPU
SPF stamp UN installation sensor
–
Detects installation of the finish stamp unit. 
H level when the finish stamp unit is 
installed.
11
10
9
2 5
8
7
4
3
6 1

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