Image forming device that adjusts image density based on...

Details Image forming device that adjusts image density based on... Image forming device that adjusts image density based on...

2006-09-19

2006-09-19

Ngo, Hoang (Department: 2852)

Electrophotography

Control of electrophotography process

Control of developing

C399S055000, C399S279000, C399S285000, C399S286000

Reexamination Certificate

active

07110688

ABSTRACT:
An image forming device includes a developer bearing member, a photosensitive member, a developing-bias applying portion, a pressing-force adjusting portion, and a density adjusting portion. The photosensitive member is disposed in contact with the developer bearing member. An electrostatic latent image is formed on the photosensitive member and developed by the developer supplied from the developer bearing member for forming a developer image. The developing-bias applying portion applies a developing bias to the developer bearing member. The pressing-force adjusting portion adjusts the pressing force between the developer bearing member and the photosensitive member. The density adjusting portion controls both the developing-bias applying portion and the pressing-force adjusting portion to adjust, based on adjustment of both the developing bias and the pressing force, an amount of developer in the developer image developed on the photosensitive member, thereby adjusting density of a developer image on a recording medium.

REFERENCES:
patent: 6157794 (2000-12-01), Katsumi et al.
patent: A 09-311510 (1997-12-01), None
patent: A 10-083121 (1998-03-01), None
patent: A 11-327293 (1999-11-01), None
patent: A 2002-328525 (2002-11-01), None
patent: A 2002-333772 (2002-11-01), None

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