2MF/2MG
18. Fuser unit switch (FUSW) ..................... Detects open/close rear unit (fuser unit).
19. Temperature sensor (TEMS)................. Detects the ambient temperature and absolute humidity.
20. Fuser thermistor 1 (FTH1) .................... Measures the heat roller temperature.
21. Fuser thermistor 2 (FTH2) .................... Measures the heat roller (center) temperature.
22. Home position sensor (HPS) ................ Detects the ISU in the home position.
2-2-4