Developer supply roller and developing unit

Details Developer supply roller and developing unit Developer supply roller and developing unit

2008-01-22

2008-01-22

Gray, David M (Department: 2852)

Electrophotography

Image formation

Development

C399S283000

Reexamination Certificate

active

07321745

ABSTRACT:
A developer supply device provided is in contact with a developer carrying device. It comprises a surface member having at least one opening elongated in an axial direction of the developer supply device. The number of cellular walls counted in the circumferential direction is increased without increasing the number of openings so that the power of scraping the developer is increased. As a result, the dirty background on the print is minimized, thus enhancing the image quality.

REFERENCES:
patent: 5473417 (1995-12-01), Hirano
patent: 5930570 (1999-07-01), Saito et al.
patent: 6196958 (2001-03-01), Shiraki et al.

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