Developing unit and image forming apparatus using the same

Details Developing unit and image forming apparatus using the same Developing unit and image forming apparatus using the same

2007-12-10

2010-12-14

Gray, David M (Department: 2852)

Electrophotography

Image formation

Development

C399S288000

Reexamination Certificate

active

07853181

ABSTRACT:
A developing unit for visualizing an electrostatic latent image formed on a photoreceptor drum with a toner, includes: a hopper for storing a developer; a developing roller for supplying the toner to a photoreceptor drum on which an electrostatic latent image is formed; and an agitating and conveying portion. In the developing unit, the agitating and conveying portion includes first and second agitating and conveying belts, each having toner agitating blades for agitating and conveying the toner. The first and second agitating and conveying belts are rotatably arranged in the hopper with their rotational axes set approximately vertically so as to rotate the toner agitating blades approximately horizontally.

REFERENCES:
patent: 5572299 (1996-11-01), Kato et al.
patent: 2006/0275054 (2006-12-01), Seorl
patent: 5-127537 (1993-05-01), None
patent: 5-289497 (1993-11-01), None
patent: 9-138579 (1997-05-01), None
patent: 2001-201930 (2001-07-01), None
patent: 2003-302837 (2003-10-01), None

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