2NC/2NF/2NG/2NN/3P7/3P8/3P9-1
2-1-4
1. Paper sensor (PS) ................................ Detects the presence of paper in the cassette.
2. Paper size length switch (PLSW).......... Detects the length of paper in the cassette.
3. Paper size width switch (PWSW).......... Detects the width of paper in the cassette.
4. MP paper sensor (MPPS) ..................... Detects the presence of paper on the MP tray.
5. Registration sensor (RS)....................... Controls the secondary paper feed start timing.
6. Original detection switch (ODSW) ........ Detects the opening/closing of the document processor.
7. Original size sensor (OSS) ................... Detects the size of the original.
8. Home position sensor (HPS) ................ Detects the ISU in the home position.
9. Toner sensor (TS) ................................. Detects the amount of toner remaining in the toner container.
10. Waste toner sensor (WTS).................... Detects when the waste toner box is full.
11. Fuser thermistor1 (FTH1) ..................... Detects the heat roller temperature (Edge).
12. Fuser thermistor2 (FTH2) ..................... Detects the heat roller temperature (Center).
13. Eject sensor (FUES) ............................. Detects a paper misfeed in the fuser or eject section.
14. Power source switch (PSSW) ............... Change ON/OFF the power supply of a main PWB, an operation
PWB, etc.
15. Front cover switch (FRCSW) ................ Detects the opening and closing of the front cover.
16. Right cover switch (RCSW) .................. Detects the opening and closing of the right cover.
Shuts off 24 V DC power line when the right cover is opened.
17. Temperature sensor (TEMS)................. Detects the temperature and absolute humidity in the machine.
List of correspondences of switch and sensor names
No. Name used in service manual Name used in parts list Part.No.
1 Paper sensor (PS) PARTS SENSOR OPT SP 303M894260
2 Paper size length switch (PLSW) PUSH SWITCH 03SN /SW-192N 5ESP03090001+01
3 Paper size width switch (PWSW) SW.PUSH 7SP01000004+H01
4 MP paper sensor (MPPS) PARTS SENSOR OPT SP 303M894260
5 Registration sensor (RS) PARTS SENSOR OPT SP 303M894260
6 Original detection switch (ODSW) PARTS SENSOR OPT SP 303M894260
7 Original size sensor (OSS) SENSOR ORIGINAL 302NG44040
8 Home position sensor (HPS) PARTS SENSOR OPT SP 303M894260
9 Toner sensor (TS) - -
10 Waste toner sensor (WTS) - -
11 Fuser thermistor1 (FTH1) - -
12 Fuser thermistor2 (FTH2) - -
13 Eject sensor (FUES) - -
14 Power source switch (PSSW) PARTS PWB SWITCH ASSY SP 302NG94300
15 Front cover switch (FRCSW) SW.PUSH 7SP01000004+01
16 Right cover switch (RCSW) SW.MICRO 7SM010202+++H01
17 Temperature sensor (TEMS) - -
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