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November 2003 © TOSHIBA TEC 11 - 5 e-STUDIO3511/4511 DRUM RELATED SECTION
11
11.4 Drum Temperature Detection Circuit
(1) Purpose of the drum temperature detection circuit
Since the photoconductive characteristic of the drum surface varies drastically depending on the
surface temperature of the drum, this circuit detects the temperature of the drum surface to gain the
charging potential according to the environment.
(2) Configuration of the drum temperature detection circuit
Temperature/
humidity sensor
Fig. 11-401
CPU
AN7
R8
R7
R9
V
TEMP
R
TH