Electrophotography – Image formation – Development
Reexamination Certificate
2011-04-12
2011-04-12
Gray, David M (Department: 2852)
Electrophotography
Image formation
Development
C399S061000, C399S258000
Reexamination Certificate
active
07925188
ABSTRACT:
A novel development device includes a developer roller, a developer reservoir, a rotatable conveyor, and a replenisher unit. The developer roller is configured to supply toner particles to the electrostatic latent image. The developer reservoir is configured to hold the developer therewithin for application to the developer roller. The rotatable conveyor is configured to rotate within the developer reservoir to convey the developer toward the developer roller. The replenisher unit has a tubular member terminating at a port opening in the developer reservoir. The replenisher unit is configured to direct a particulate material through the tubular member into the developer reservoir via the port. The particulate material is toner particles, carrier particles, or a mixture of toner particles and a given amount of carrier particles. The port is submerged in the developer within the developer reservoir as the rotatable conveyor rotates.
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Hashimoto Shunichi
Kawasumi Masanori
Murakami Eisaku
Satoh Masahiko
Senoh Tetsuya
Gray David M
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Ricoh Company Limited
Yi Roy
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