6. Sensors and switches
No. Name Signal Type Function Output
1
Mirror home position
sensor
MHPS Transmission sensor
Mirror (scanner unit) home
position detection
“H” at home position
2 SDOD sensor SDOD Transmission sensor
SPF open/close detection
Book sensor
“L” at paper pass
3 POD sensor POD Transmission sensor Paper exit detection “H” at paper pass
4 SPF sensor
SPID/
SDSW
Transmission sensor
Paper entry detection
Cover open/close detection
“L” at paper pass
5 SPPD sensor SPPD Transmission sensor Paper transport detection “L” at paper pass
6 PPD2 sensor PPD2 Transmission sensor Paper transport detection 2 “L” at paper pass
7 Cassette detection switch CED1 Microswitch
Cassette installation
detection
“H” at cassette insertion
8 Cassette detection switch CED2 Microswitch
Cassette installation
detection
9 Paper size detection switch PSW1 Microswitch
Detects A4/Letter or
smaller sizes
1 or 0V of 5V at door
open
10
Paper size detection
swtich 2
PSW2 Microswitch
Detects A4/Letter or
smaller sizes
11 PPD1 sensor PPD1 Transmission sensor Paper transport detection 1 “L” at paper pass
12 PPD3 sensor PPD3 Transmission sensor Paper transport detection 3 “L” at paper pass
13 Door switch DSW Micro switch
Door open/close detection
(safety switch for 5V)
1 or 0V of 5V at door
open
14 Door switch DSW Micro switch
Door open/close detection
(safety switch for 24V)
1 or 0V of 24V at door
open
15 Drum reset switch DRST Micro switch New drum detection switch
Instantaneously “H” at
insertion of new drum
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
AR-F152
4 – 5
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