Sharp AL-2030, Service Manual, Page: 15 / 108

AL-2040CS EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 5
5. Sensors and switches
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2
8
9
3
4
10
5
11
6
7
No. Name Signal Type Function Output
1 Scanner unit home position
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) 1 or 0V of 24V at door open
7 Drum reset switch DRST Micro-switch New drum detection switch Instantaneously "H" at
insertion of new drum
8 SPF sensor SPID/
SD SW Transmission sensor Paper entry detection
Cover open/close detection "L" at paper pass
9 SPPD sensor SPPD Transmission sensor Paper transport detection "L" at paper pass
10 2nd cassette DSW Micro-switch 2nd cassette door open detection 1 or 0V of 5V at door open
11 PPD3 sensor PPD3 Transmission sensor Paper transport detection 3 "L" at paper pass