Developing unit and image forming apparatus having the same

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

2011-01-18

2011-01-18

Gray, David M (Department: 2852)

Electrophotography

Image formation

Development

C399S255000

Reexamination Certificate

active

07873305

ABSTRACT:
A developing unit of an image forming apparatus includes a developer cartridge detachably mounted on the developing unit, a developing case in which a developing member and a first supply member are provided, a developer supply passage to supply a developer stored in the developer cartridge to the developing case, and a developer supplement unit mounted in a portion connecting the developing case and the developer supply passage, to agitate the developer supplied through the developer supply passage and to supply the agitated developer to the developing case.

REFERENCES:
patent: 5345298 (1994-09-01), Corrigan, Jr.
patent: 5398849 (1995-03-01), Smith et al.
patent: 7167667 (2007-01-01), Mabuchi
patent: 2005/0031381 (2005-02-01), Arimoto
patent: 2007/0122203 (2007-05-01), Sugimoto et al.

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