Electrophotography – Image formation – Development
Reexamination Certificate
2011-03-22
2011-03-22
Porta, David P (Department: 2884)
Electrophotography
Image formation
Development
C399S254000
Reexamination Certificate
active
07912408
ABSTRACT:
An image forming apparatus includes a development device for supplying a developer containing toner and carrier to an electrostatic latent image carrying member for carrying thereon an electrostatic latent image, or a process cartridge for integrally storing the development device and the electrostatic latent image carrying member. The development device includes a conveyance path for charging and conveying the developer, and a developer carrying member for developing the electrostatic latent image into a toner image with the use of the developer conveyed through the conveyance path. The conveyance path includes a first conveyance member for receiving replenished toner and generating conveyance force for conveying the replenished toner and the developer in one direction, and a second conveyance member for generating conveyance force for conveying a portion of the developer conveyed by the first conveyance member in the opposite direction to the conveyance direction of the first conveyance member.
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Ichikawa Tomoyuki
Iwata Nobuo
Katoh Natsumi
Matsumoto Jun-ichi
Boosalis Faye
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Porta David P
Ricoh Company Limited
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