
5. Sensors and switches
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 PED1 Body upper tray paper presence detection Transmission photo sensor HIGH when paper is present.
I DPPD1 Body upper tray paper transport sensor Transmission photo sensor LOW when paper is present.
J PID Single manual feed paper entry sensor Transmission photo sensor HIGH when paper is present.
12
9
8
7
2 3 5 4 6
10
1
13
14
11
3 – 5
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