Electrophotography – Image formation – Development
Reexamination Certificate
2006-10-06
2008-12-09
Tran, Hoan H (Department: 2852)
Electrophotography
Image formation
Development
C399S256000
Reexamination Certificate
active
07463852
ABSTRACT:
An image forming apparatus includes an image carrier configured to form a latent image and a development unit including a development member configured to develop the latent image forming on the image carrier with a developer, and a plurality of conveying members each including at least one spiral vane and configured to rotate around a spiral axis of the spiral vane to revolve and transfer the developer around the spiral axis in a direction along the spiral axis, the plurality of conveying members configured to transfer the developer sequentially from a conveying member to an adjacent conveying member and including a first conveying member arranged at a position closest to the development member to supply developer to the development member, wherein a number of the spiral vanes of the first conveying member are at least two and is also greater than the number of spiral vanes in the remaining conveying members.
REFERENCES:
patent: 5887224 (1999-03-01), Mizuishi et al.
patent: 5950056 (1999-09-01), Hamamichi et al.
patent: 6360066 (2002-03-01), Kawahito et al.
patent: 6366755 (2002-04-01), Takashima
patent: 6687478 (2004-02-01), Sugita et al.
patent: 09-197782 (1997-07-01), None
patent: 10-221937 (1998-08-01), None
patent: 11-024380 (1999-01-01), None
patent: 11-143192 (1999-05-01), None
patent: 2002-287472 (2002-10-01), None
patent: 2003-057929 (2003-02-01), None
patent: 2004-191768 (2004-07-01), None
patent: 2005-017872 (2005-01-01), None
Fujishiro Takatsugu
Hattori Yoshio
Kawahara Shin-ichi
Tanaka Shuji
Yoshida Keiichi
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
Tran Hoan H
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