Sharp AL-2020, Service Manual

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AL-2020/2035/2040/2050/2060 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 8
B. AL-2050/2060
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No. Name Signal Type Function / Operation 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 Paper empty sensor SPID Transmission sensor Paper entry detection "H" paper empty
9 Paper exit sensor SRJD Transmission sensor Paper exit detection "H" paper empty
10 PD1 sensor PD1 Micro-switch Paper width detect (AL-2060 only) "H" at A4 size or less
"L" at A4 size or more
11 Paper sensor SPPD Transmission sensor Paper transport detection "H" paper empty
12 Upper door open/close sensor SCOD Transmission sensor Cover open/close detection "L" open