Drum Temperature Detection Circuit - Toshiba e-STUDIO350 Service Manual

11.4 Drum Temperature Detection Circuit

(1) Purpose of the drum temperature detection circuit
The amount of charge on the drum surface varies greatly with the surface temperature of the drum.
This circuit detects the temperature of the drum surface, and the amount of charge on the drum
surface is controlled to be constant based on the result.
(2) Configuration of the drum temperature detection circuit
Drum
thermistor
November 2003 © TOSHIBA TEC
+5V
DRTH
GND GND
Drum temperature detection circuit
Fig. 11-401
11 - 7
DRTMP-1
CPU
e-STUDIO350/450 DRUM RELATED SECTON
11