Toshiba e-STUDIO520 Service Manual page 294

Multifunctional digital systems

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Fuser roller front thermistor (THM1)

This thermistor cannot be used for the temperature control of the fuser roller. It detects a temper-

ature abnormality at the side area of the fuser roller where the paper does not pass through.

(10) Fuser roller center thermostat (THMO1) and Fuser roller side thermostat (THMO2)

These thermostats cut off the power supply to the IH coil (IH-COIL) when the fuser roller

becomes abnormally hot as the result of a problem such as a thermistors (THM1, 2 and 3) mal-

function. The thermostats (THMO1 and 2) of this equipment are used to prevent abnormal oper-

ation, and when any abnormality is detected, they must be replaced altogether with the other

damaged parts of the fuser unit.

e-STUDIO520/600/720/850 FUSER UNIT

E-studio600 E-studio720 E-studio850