Developing device and image-forming apparatus

Details Developing device and image-forming apparatus Developing device and image-forming apparatus

2011-04-12

2011-04-12

Gray, David M (Department: 2852)

Electrophotography

Image formation

Development

C399S254000, C399S099000

Reexamination Certificate

active

07925186

ABSTRACT:
A developing device includes (a) a developing member; (b) a developer container; (c) a partition member that partitions an interior of the developer container into a primary chamber and a secondary chamber; and (d) a developer-conveying unit that is disposed in the primary chamber, the developing device defining a collected-toner-receiving port through which a collected toner that is collected from a toner image carrier is received into the developer container; and a migration opening through which a developer held in the primary chamber is migratable to the secondary chamber, the developing device further including (e) a capturing unit that is disposed at the migration opening and captures a foreign material which migrates through the migration opening together with the developer; and (f) a foreign-material-removing unit that is disposed at the developer-conveying unit and moves the foreign material out of the developer container in accordance with the rotation of the developer-conveying.

REFERENCES:
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patent: 10-186991 (1998-07-01), None
patent: 10-293458 (1998-11-01), None
patent: 2001-22181 (2001-01-01), None
Kiyoshi Chatani et al., “Image Forming Member, Toner Removing Apparatus, Developing Apparatus, and Image Forming Apparatus,” Unpublished U.S. Appl. No. 11/785,169, filed Apr. 16, 2007.

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