Electrophotography – Image formation – Development
Reexamination Certificate
2006-12-12
2008-12-16
Chen, Sophia S (Department: 2852)
Electrophotography
Image formation
Development
C399S269000
Reexamination Certificate
active
07466944
ABSTRACT:
A developing device includes a developer-bearing member supporting developer for developing electrostatic images, a first chamber supplying the developer to the developer-bearing member, a second chamber below the first chamber, first and second communicating portions connecting the first and second chambers, a first carrying member carrying the developer in the first chamber in a first direction from the first communicating portion to the second communicating portion, a second carrying member carrying the developer in the second chamber in a second direction from the second communicating portion to the first communicating portion, and a partition between the first and second chambers. A bottom portion of the first chamber is inclined such that a downstream end thereof in the first direction is higher than the other end at a position where the bottom portion faces the developer-bearing member.
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patent: 6259876 (2001-07-01), Fukuda et al.
patent: 6975825 (2005-12-01), Sakamaki et al.
patent: 2007/0025773 (2007-02-01), Tateyama et al.
patent: 5-333691 (1993-12-01), None
patent: 6-51634 (1994-02-01), None
Canon Kabushiki Kaisha
Canon USA Inc IP Div
Chen Sophia S
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