Electrophotography – Image formation – Development
Reexamination Certificate
2011-07-12
2011-07-12
Gray, David M (Department: 2852)
Electrophotography
Image formation
Development
Reexamination Certificate
active
07979013
ABSTRACT:
A developing device that can be formed at low cost and without increasing the complexity of a die structure of a casing comprises a development roller, a supply roller, a developing portion having an agitating member, a toner hopper disposed above the developing portion, an agitating member in the toner hopper, a partitioning member provided between the developing portion and the toner hopper and having an opening portion, and a collected developer storage portion forming portion for forming a storage space for collected toner collected from the development roller by the supply roller within a fixed distance of the supply roller such that the collected toner moves to the vicinity of the agitating member in the developing portion in accordance with a developer flow generated by the rotation of the supply roller. A pre-incorporation component formed by integrating the partitioning member, the collected developer storage portion forming portion, and a bearing portion for supporting the agitating members is incorporated into the casing.
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Kawakami Yoshihiro
Kubota Tomohiro
Ooyoshi Hirobumi
Shimizu Yoshiyuki
Tatsumi Kenzo
Do Andrew V
Gray David M
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh & Company, Ltd.
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