Image forming apparatus

Details Image forming apparatus Image forming apparatus

2007-09-04

2007-09-04

Evanisko, Leslie (Department: 2854)

Incremental printing of symbolic information

Electric marking apparatus or processes

Electrostatic

C347S253000

Reexamination Certificate

active

11324229

ABSTRACT:
A photoreceptor cleanerless image forming apparatus and method for overlappingly forming yellow, cyan, magenta, and black toner images and decreasing color mixture or an exposure error due to reverse transfer toner or untransferred toner are provided. The image forming apparatus100comprises four image forming units100a,100b,100c,and100dconfigured to be photoreceptor cleanerless in a4-drum tandem manner. Each image forming unit includes a photoreceptor103a,103b,103c, or103d,a charger105a,105b,105c,or105d,an exposure apparatus106a,106b,106c,or106d,and a developing apparatus109a,109b,109c,or109d. When exposure resolutions Ry, Rc, Rm, and Rk are assumed for exposure sources of the exposure apparatuses in the image forming units which form yellow, cyan, magenta, and black images, respectively, the exposure resolutions are configured to satisfy the conditions of Rk≦Rc≦Rm and Rm>Rk. This decreases an exposure error (image hysteresis) in an image formed on paper.

REFERENCES:
patent: 5835830 (1998-11-01), Fukuda et al.
patent: 6108017 (2000-08-01), Katakura et al.
patent: 6240269 (2001-05-01), Kaya et al.
patent: 6323888 (2001-11-01), Iwamatsu et al.
patent: 6564021 (2003-05-01), Nakai et al.
patent: 7030895 (2006-04-01), Aoki et al.
patent: 5-341643 (1993-12-01), None
patent: 08-146696 (1996-06-01), None
patent: 11-024354 (1999-01-01), None

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