Electrophotography – Image formation – Development
Reexamination Certificate
2006-11-21
2006-11-21
Brase, Sandra L. (Department: 2852)
Electrophotography
Image formation
Development
C399S119000
Reexamination Certificate
active
07139513
ABSTRACT:
A developing device unit has a developing device unit main body which rotates about a rotary shaft. Plural developing devices are disposed on the developing device unit main body. The developing devices respectively have developing device main bodies, and developing agent cartridges containing four color developing agents are respectively loaded into the developing device main bodies. The developing agent cartridges are attached/detached in a direction substantially tangential to the rotating direction of the developing device unit main body when a grip section is gripped and operated by the operator in the case where the developing agent cartridges are at a location substantially opposite an image carrier with respect to the rotary shaft.
REFERENCES:
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patent: 6104898 (2000-08-01), Awano et al.
patent: 6104900 (2000-08-01), Ishikawa et al.
patent: 6535705 (2003-03-01), Asakura et al.
patent: 6834173 (2004-12-01), Yamaguchi et al.
patent: 6889024 (2005-05-01), Shiraki et al.
patent: 6915094 (2005-07-01), Tsuruya et al.
patent: 11-149211 (1999-06-01), None
Harumoto Katsumi
Okamoto Masaya
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