Development device, process cartridge, and image forming apparatus using the development device
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United States of America Patent
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Apr 12, 2011
Grant Date -
Sep 18, 2008
app pub date -
Mar 17, 2008
filing date -
Mar 15, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
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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