Drum Temperature Detection Circuit - Toshiba e-STUDIO520 Service Manual

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11.3 Drum Temperature Detection Circuit

The drum temperature detection circuit is composed as shown in the figure below. It converts the input

voltage from the drum thermistor into a digital signal by means of the A/D converter embedded in the

main CPU on the LGC board. The drum thermistor is an element whose resistance value is smaller

when the temperature is higher. Therefore, when the temperature becomes higher, the input voltage to

the main CPU becomes lower.

Drum thermistor

e-STUDIO520/600/720/850 DRUM/CLEANER UNIT

E-studio600 E-studio720 E-studio850