Electrophotography – Control of electrophotography process – Of plural processes
Patent
1996-10-10
1998-03-31
Grimley, Arthur T.
Electrophotography
Control of electrophotography process
Of plural processes
399 49, 399 50, 399 52, G03G 1500, G03G 1502, G03G 1504
Patent
active
057349487
ABSTRACT:
In order to effectively perform image stabilization by control of retaining initial characteristics of a photosensitive body, if correlation between initial and aged values corresponding to bright and dark part signals of the photosensitive body is such that a variation between the initial and aged values of the dark part signal (dark .DELTA.) is greater than a variation between the initial and aged values of the bright part signal (bright .DELTA.), an image stabilizer, first, controls a charging characteristic of the aged values by changing a charging output to the photosensitive body so that the bright .DELTA. and the dark .DELTA. are equal to each other. Next, the image stabilizer makes the aged characteristics of the photosensitive body virtually identical to the initial characteristics by changing an exposure output so that the aged and initial values of the dark part signal become equal to each other.
REFERENCES:
patent: 5107302 (1992-04-01), Bisaiji
patent: 5214474 (1993-05-01), Ishizuka
patent: 5223896 (1993-06-01), Shimizu et al.
patent: 5453773 (1995-09-01), Hattori et al.
patent: 5499079 (1996-03-01), Kinoshita et al.
Ino Toshiaki
Ishida Toshihisa
Masuda Jitsuo
Nagayama Katsuhiro
Saiko Hideji
Chen Sophia S.
Conlin David G.
Grimley Arthur T.
Lowry David D.
Sharp Kabushiki Kaisha
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