Electrophotography – Image formation – Development
Reexamination Certificate
2006-03-07
2006-03-07
Royer, William J. (Department: 2852)
Electrophotography
Image formation
Development
Reexamination Certificate
active
07010253
ABSTRACT:
The present invention relates to a developing apparatus for developing an electrostatic image formed on an image carrier, comprising a developing container, a first developing member formed at the first chamber for conveying developer to a first developing portion, a second developing member provided with the second chamber for conveying the developer to a second developing portion and a magnetic field generating means for generating magnetic field for transferring the developer between the first developing member and the second developing member. The diaphragm is disposed in a non-contacting manner to the first developing member and the second developing member and has a restricting member for restricting entry of the developer out of an interior of the developing container to a space between the first developing member and the second developing member.
REFERENCES:
patent: 4063533 (1977-12-01), White
patent: 4724457 (1988-02-01), Abreu et al.
patent: 5995790 (1999-11-01), Takeda
patent: 2004/0022560 (2004-02-01), Hirobe et al.
patent: 2004/0105705 (2004-06-01), Hirobe
patent: 2000-155467 (2000-06-01), None
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Royer William J.
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