Controlling apparatus for developing roller, image forming...

Details Controlling apparatus for developing roller, image forming... Controlling apparatus for developing roller, image forming...

2008-07-29

2008-07-29

Royer, William J (Department: 2852)

Electrophotography

Control of electrophotography process

Control of developing

C399S061000, C399S062000

Reexamination Certificate

active

07406274

ABSTRACT:
An image forming apparatus having a developer controlling apparatus for a developing roller is provided to uniformly control an amount of developer deposited on the developing roller and a developer controlling method thereof. The apparatus includes a sensing part having a first sensor which senses a conductivity of a liquid developer and a second sensor which senses a density of the liquid developer. A control part controls a voltage applied to the developing roller and/or a deposit roller according to the conductivity and the density sensed by the sensing part.

REFERENCES:
patent: 6575096 (2003-06-01), Caruthers et al.
patent: 6600884 (2003-07-01), Shimmura
patent: 08-146736 (1996-06-01), None
patent: 2002-311725 (2002-10-01), None
patent: 99-45538 (1999-06-01), None
patent: 1020010038782 (2001-05-01), None
patent: 1020020070589 (2002-09-01), None

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