Electrophotography – Image formation – Development
Reexamination Certificate
2005-03-22
2005-03-22
Brase, Sandra L. (Department: 2852)
Electrophotography
Image formation
Development
C399S258000
Reexamination Certificate
active
06871033
ABSTRACT:
A development unit performing developing operation for developing electrostatic latent image with toner. The development unit includes a holding chamber wall defining a toner holding chamber, and a development chamber wall defining a development chamber in which a developing roller and a toner supply roller are provided. A partition wall is provided for partitioning the holding chamber from the development chamber. An elongated through hole is formed in the partition wall for bringing the holding chamber into fluid communication with the development chamber. An agitator is rotatably provided in the holding chamber for supplying the toner in the holding chamber into the development chamber through the through hole. A plurality of slats or grids are provided at the through hole, so that a plurality of slits are provided between neighboring slats. These slits allows the toner to pass therethrough from the holding chamber to the development chamber, and these slats restricts return of the toner from the development chamber to the holding chamber.
REFERENCES:
patent: 5012285 (1991-04-01), Oka et al.
patent: 5548384 (1996-08-01), Weed
patent: 5822664 (1998-10-01), Oka et al.
patent: 5842091 (1998-11-01), Nakano
patent: 5943537 (1999-08-01), Ahn
patent: 6025106 (2000-02-01), Azuma et al.
patent: 6484007 (2002-11-01), Ozeki et al.
patent: 6485876 (2002-11-01), Takezawa et al.
patent: 6584293 (2003-06-01), Wang et al.
patent: 5-119621 (1993-05-01), None
patent: A 8-106205 (1996-04-01), None
patent: 8-171276 (1996-07-01), None
patent: A 9-6113 (1997-01-01), None
patent: A 10-20746 (1998-01-01), None
patent: B2 2952036 (1999-07-01), None
patent: A 2000-284595 (2000-10-01), None
patent: A 2000-310902 (2000-11-01), None
patent: 2000-347493 (2000-12-01), None
patent: A 2001-114193 (2001-04-01), None
patent: 2001-194883 (2001-07-01), None
patent: 2001-194883 (2001-07-01), None
patent: 2001-272854 (2001-10-01), None
Horinoe Mitsuru
Sato Shougo
Brase Sandra L.
Brother Kogyo Kabushiki Kaisha
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