Ricoh M049 Service Training page 43

Thermostat
Thermistor
q
After image is transferred, paper enters fusing unit and image is fused to paper
by heat and pressure of hot roller and pressure roller.
q
CPU monitors hot roller temperature through thermistor in contact with hot
roller surface. Thermostat protects fusing unit from overheating.
Slide 43
For more details, see the Service Manual.
FUSING
Overview
Hot Roller
43
M049 (MF-2a) / M048 (MF-2b)
Pressure Roller