Read Sharp AR-M155 (serv.man3) Service Manual online
AR-M150/M155/M155X EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 4
5. Sensors and switches
(With optional SPF/RSPF installed)
No.
Name
Signal
Type
Function
Output
1
Scanner unit home position
sensor
sensor
MHPS
Transmission sensor
Scanner unit home position detection
"H" at home position
2
POD sensor
POD
Transmission sensor
Paper exit detection
"H" at paper pass
3
PPD2 sensor
PPD2
Transmission sensor
Paper transport detection 2
"L" at paper pass
4
Cassette detection switch
CED1
Micro-switch
Cassette installation detection
"H" at cassette insertion
5
PPD1 sensor
PPD1
Transmission sensor
Paper transport detection 1
"L" at paper pass
6
Door switch
DSW
Micro-switch
Door open/close detection
(safety switch for 24V)
(safety switch for 24V)
1 or 0V of 24V at door open
7
SPF sensor
SPID/
SD SW
SD SW
Transmission sensor
Paper entry detection
Cover open/close detection
Cover open/close detection
"L" at paper pass
8
SPPD sensor
SPPD
Transmission sensor
Paper transport detection
"L" at paper pass
9
PD1 sensor
PD1
Micro-switch
Paper width detect
"H" at A4 size or less
"L" at A4 size or more
"L" at A4 size or more
1
8
7
2
3
4
5
9
6
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