Sensors And Switches; Al-2020/2035/2040 - Sharp AL-2020 Service Manual

5. Sensors and switches

A. AL-2020/2035/2040
No. Name
1 Scanner unit home
position sensor
2 POD sensor
3 PPD2 sensor
4 Cassette detection switch
5 PPD1 sensor
6 Door switch
7 Drum reset switch
8 SPF sensor
9 SPPD sensor
AL-2020/2035/2040/2050/2060 EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 7
2
1
7
Signal Type
MHPS Transmission sensor
POD Transmission sensor
PPD2 Transmission sensor
CED1 Micro-switch
PPD1 Transmission sensor
DSW Micro-switch
DRST Micro-switch
SPID/ Transmission sensor
SD SW
SPPD Transmission sensor
6
Function / Operation
Scanner unit home position
detection
Paper exit detection
Paper transport detection 2
Cassette installation detection
Paper transport detection 1
Door open/close detection
(safety switch for 24V)
New drum detection switch
Paper entry detection
Cover open/close detection
Paper transport detection
8
9
3
4
5
Output
"H" at home position
"H" at paper pass
"L" at paper pass
"H" at cassette insertion
"L" at paper pass
1 or 0V of 24V at door open
Instantaneously "H" at insertion
of new drum
"L" at paper pass (AL-2035/2040)
"L" at paper pass (AL-2035/2040)