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MX3501N EXTERNAL VIEW AND INTERNAL STRUCTURE 3 – 2
B. Sensors, switches
No.
Signal
name
Name
Type
Function/Operation
Active condition
1
SPPD2
DSPF paper pass sensor 2
Transmission type
Detects pass of the paper.
L when paper is detected.
2
SPPD1
DSPF paper pass sensor 1
Transmission type
Detects pass of the paper.
L when paper is detected.
3
SCOV
DSPF upper door open/close sensor
Transmission type
Detects open/close of the upper door.
L when the upper door is open.
4
SPRDMD
DSPF document random sensor
Transmission type
Detects the paper size in random paper feed.
L when paper is detected.
5
STUD
DSPF paper feed tray upper limit
sensor
sensor
Transmission type
Detects the upper limit of the paper feed tray.
L when the upper limit of the
paper feed tray is detected.
paper feed tray is detected.
6
SPED1
DSPF document upper limit sensor
Transmission type
Detects the upper limit of the DSPF document.
L when paper is detected.
7
SPWS
DSPF document width sensor
Volume resistor
Detects the document width of the paper feed
tray upper.
tray upper.
—
8
SPLS1
DSPF document length detection
short sensor
short sensor
Transmission type
Detects the document length of the paper feed
tray upper.
tray upper.
H when paper is detected.
9
SPLS2
DSPF document length detection
long sensor
long sensor
Transmission type
Detects the document length of the paper feed
tray upper.
tray upper.
H when paper is detected.
10
SPPD3
DSPF paper pass sensor 3
Transmission type
Detects pass of the paper.
L when paper is detected.
11
SPPD4
DSPF paper pass sensor 4
Transmission type
Detects pass of the paper.
L when paper is detected.
12
SOCD
DSPF open/close sensor
Transmission type
Detects open/close of the DSPF unit.
L when the DSPF unit is open.
13
SLCOV
DSPF lower door open/close sensor
Micro switch
Detects open/close of the lower door.
L when the lower door is open.
14
SPPD5
DSPF paper pass sensor 5
Transmission type
Detects pass of the paper.
L when paper is detected.
15
SPOD
DSPF paper exit sensor
Transmission type
Detects paper exit of the document.
L when paper is detected.
16
SPED2
DSPF document empty sensor
Transmission type
Detects document empty in the paper feed
tray.
tray.
L when paper is detected.
17
STLD
DSPF paper feed tray lower limit
sensor
sensor
Transmission type
Detects the lower limit of the paper feed tray.
H when the lower limit of the
paper feed tray is detected.
paper feed tray is detected.
2
13
11
10
9
8
7
15
4
12
14
2
3
1
11
12
3
7
8
9
1
13
15
5
4
6
14
10
16 17
17
16
5
6
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