Electrophotography – Control of electrophotography process – Control of charging
Reexamination Certificate
2006-07-11
2006-07-11
Ngo, Hoang (Department: 2852)
Electrophotography
Control of electrophotography process
Control of charging
C399S048000
Reexamination Certificate
active
07076181
ABSTRACT:
A method of maintaining a surface charge on a photoreceptor within a predetermined voltage range is provided, comprising the steps of providing a charging device adjacent to a surface of the photoreceptor, determining a reference voltage to be applied by the charging device to the photoreceptor surface to establish a first photoreceptor surface voltage, and applying the reference voltage to the surface of the moving photoreceptor with the charging device while measuring a first photoreceptor current. The method further comprises comparing the first photoreceptor current to predetermined characteristics of the photoreceptor to calculate a first output value, comparing the first output value to predetermined characteristics of the photoreceptor and calculating a first correction voltage, and applying the first correction voltage to the photoreceptor surface with the charging device to obtain a surface voltage on the photoreceptor that is within the predetermined operational voltage range.
REFERENCES:
patent: 4420244 (1983-12-01), Landa
patent: 4438099 (1984-03-01), Azzariti
patent: 4935777 (1990-06-01), Noguchi et al.
patent: 4939542 (1990-07-01), Kurando et al.
patent: 4963926 (1990-10-01), Onishi et al.
patent: 5173434 (1992-12-01), Shimizu et al.
patent: 5182596 (1993-01-01), Nakazawa et al.
patent: 5285242 (1994-02-01), Kotani et al.
patent: 5305060 (1994-04-01), Fukushima
patent: 5355197 (1994-10-01), Hopkins
patent: 5436697 (1995-07-01), Negishi
patent: 5534977 (1996-07-01), Saitoh et al.
patent: 5602628 (1997-02-01), Sugiyama et al.
patent: 5659839 (1997-08-01), Mizude et al.
patent: 5733698 (1998-03-01), Lehman et al.
patent: 5916718 (1999-06-01), Kellie et al.
patent: 6223006 (2001-04-01), Scheuer et al.
patent: 6365307 (2002-04-01), Markovics
patent: 6591071 (2003-07-01), Hayashi
Brenner Robert E.
Edwards William D.
Kellie Truman F.
Kagan Binder PLLC
Samsung Electronics Company, Ltd.
LandOfFree
Closed loop control of photoreceptor surface voltage for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Closed loop control of photoreceptor surface voltage for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Closed loop control of photoreceptor surface voltage for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3554207