Sharp SF-1120 User Manual
Page 16
5. Sensors and switches (Explained with the SF-1120 and the SF-CM15)
For the ADU sensor, refer to page 5-18.
No.
Signal name
Name
Type
Operation, function
1
TCS
Toner density control sensor
Transmission sensor
HIGH when toner density falls.
2
ILSW
Front cabinet open/close switch
Interlock switch
ON when closed.
3
MSW
Power switch
Seesaw switch
4
TH
Fusing heater thermistor
Thermistor
Greater resistance at low temperature
5
TS
Fusing heater thermostat
Thermostat
Contact open at abnormally high
temperature
6
POD
Paper exit paper sensor
Transmission photo sensor LOW when paper is present.
7
MHPS
Mirror home position sensor
Transmission photo sensor HIGH when paper is sensed.
8
MMRE
Main motor encoder
Transmission photo sensor Rotation pulse output
9
TFD
Waste toner full switch
Lead switch
HIGH when sensed.
F
LHPS
Lens home position sensor
Transmission photo sensor LOW when reduction.
G
PPD
Paper transport sensor
Transmission photo sensor LOW when paper is present.
H
1 CSD0
∼
2
Body upper tray paper size detection (SF-1020 only)
Tact switch
Shorted when the switch is turned on.
I
2 CSD0
∼
2
Body lower tray paper size detection
Tact switch
Shorted when the switch is turned on.
J
3 CSD0
∼
2
Option upper tray paper size detection
@
1
Tact switch
Shorted when the switch is turned on.
K
4 CSD0
∼
2
Option lower tray paper size detection
@
2
Tact switch
Shorted when the switch is turned on.
L
PED1
Body upper tray paper presence detection (SF-1020 only) Transmission photo sensor HIGH when paper is present.
M
PED2
Body lower tray paper presence detection
Transmission photo sensor HIGH when paper is present.
N
PED3
Option upper tray paper presence detection
@
1
Transmission photo sensor HIGH when paper is present.
O
PED4
Option lower tray paper presence detection
@
2
Transmission photo sensor HIGH when paper is present.
P
Motor sensor 2 Body lower stage paper feed motor encoder sensor
Transmission photo sensor Rotation pulse output
Q
Motor sensor 3 Option upper paper feed motor encoder sensor
@
1
Transmission photo sensor Rotation pulse output
R
Motor sensor 4 Option lower paper feed motor encoder sensor
@
2
Transmission photo sensor Rotation pulse output
S
DPPD1
Body upper tray paper transport sensor
Transmission photo sensor LOW when paper is present.
T
DPPD2
Body lower tray paper transport sensor
Transmission photo sensor LOW when the side door is open and
paper is present.
U
DPPD3
Option upper tray paper transport sensor
Transmission photo sensor LOW when the option door is open
and paper is present.
V
DPPD4
Option lower tray paper transport sensor
Transmission photo sensor LOW when the option door is open
and paper is present.
W
PID
Single manual feed paper entry sensor
Transmission photo sensor HIGH when paper is present.
X
OCSW
OC cover open/close sensor
Transmission photo sensor OC cover open/close detection
Y
ORS
Original size sensor
Photo transistor
Original size detection
Z
DMS
Drum mark sensor
Reflection sensor
Drum mark detection
[
IDS
Toner patch density sensor
Reflection sensor
Toner patch density detection
@
1: SF-CM15, SF-CM16
@
2: SF-CM15 only
9
8
7
2
3
5
4
6
23
11
10
27
1
28
12
16
13
14
15
19
18
17
24
25
26
20 21 22
31
29
30
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