Read Sharp AL-2021 Service Manual online
AL-2041 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 5
6. Sensors and switches
1
2
8
9
3
7
6
5
4
No.
Name
Signal
Type
Function / Operation
Output
1
Scanner unit home
position sensor
position sensor
MHPS
Transmission sensor
Scanner unit home position
detection
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)
0V at door open
7
Drum reset switch
DRST
Micro-switch
New drum detection switch
Instantaneously "H" at insertion
of new drum
of new drum
8
SPF sensor
SPID/
SD SW
SD SW
Transmission sensor
Paper entry detection
Cover open/close detection
Cover open/close detection
"L" at paper pass (AL-2031/2041)
9
SPPD sensor
SPPD
Transmission sensor
Paper transport detection
"L" at paper pass (AL-2031/2041)
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