Developing device and image forming device having the same

Details Developing device and image forming device having the same Developing device and image forming device having the same

2007-03-20

2008-11-04

Gray, David M. (Department: 2852)

Electrophotography

Image formation

Development

Reexamination Certificate

active

07447468

ABSTRACT:
A developing device includes a casing, a first mixing conveying screw, and a developer removing unit. The casing is able to store toner. The first mixing conveying screw has a shaft arranged to be able to rotate freely in the interior of the casing, and a spiral in a spiral shape formed on the outer circumference portion of the shaft. The developer removing unit has a plurality of spring members arranged to be lined up in the axial direction corresponding to the spiral pitch of the spiral and are able to contact the spiral, and a retaining member that is retained in the casing and retains the plurality of the spring members.

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patent: 6055405 (2000-04-01), Knott et al.
patent: 6832067 (2004-12-01), Kubo
patent: 2006/0222408 (2006-10-01), Suenami et al.
patent: 04036785 (1992-02-01), None
patent: 05224562 (1993-09-01), None
patent: 2000-250299 (2000-09-01), None
patent: 2001-249538 (2001-09-01), None
patent: 2006126412 (2006-05-01), None

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