Electrophotography – Control of electrophotography process – Of plural processes
Patent
1997-05-28
1999-01-12
Pendegrass, Joan H.
Electrophotography
Control of electrophotography process
Of plural processes
399 74, 250205, 2505591, G03G 1500
Patent
active
058600388
ABSTRACT:
An image forming apparatus includes an photoconductive drum, a charger, an exposing device, a developing device and a transferring device. A photo-sensor is disposed around the photoconductive drum. The photo-sensor senses the intensity of the reflected light from the surface of the photoconductive drum and the reflected light from the reference toner image formed on the photoconductive drum. The intensity of the emitted light from photo-sensor is changed corresponding to a continuous lighting time of the photo-sensor. Therefore, the intensity is compensated in response to the continuous lighting time of the photo-sensor. As a result, accurate toner density is detected.
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Fujimori Kouta
Kato Shinji
Maruta Takayuki
Pendegrass Joan H.
Ricoh & Company, Ltd.
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