Fusing Temperature Control - Ricoh D109 Service Training

End thermostat
Slide 73
Temperature Control
The BICU checks the signal from the thermistor every 1.5 seconds.
The BICU controls the fusing lamp depending on the following conditions:
Current temperature
Previous temperature (1.5 seconds before)
Target fusing temperature
The target fusing temperature starts at 180ºC and then goes to 170ºC after one
minute.
Examine the target temperature table in the Service Manual.

Fusing Temperature Control

Center thermostat
Thermistor
73
S-C4L Training