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US 5,345,298 AGranted
Magnetic brush development apparatus for toner add/mix dispenser
AssigneeXerox Corporation
InventorRichard W. Corrigan, Jr.
Life of this patent
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AssigneeXerox Corporation
InventorRichard W. Corrigan, Jr.
Estimating the term…
A developer dispensing assembly for dispensing developer to an electrostatographic development apparatus has a developer dispensing tube, a toner supply at a first end of the tube, a developer supply adjacent the toner supply, an auger to transport toner and developer from the first end of the tube to the opposite end of the tube, the developer dispensing tube having an array of developer dispensing apertures arranged in a geometric pattern having a spatial relationship with respect to each other to dispense toner enriched developer through the apertures to the development apparatus at a substantially uniform dispensing profile as said developer and toner are transported from the first end of the tube to the opposite end of the tube for varied feed rates of developer and toner to the dispensing tube.
A developer dispensing assembly for dispensing developer to an electrostatographic development apparatus comprising a developer dispensing tube, a toner supply means at a first end of said tube, developer supply means adjacent said toner supply means, transport means to transport toner and developer from said first end of said tube to the opposite end of said tube, said developer dispensing tube having an array of developer dispensing apertures arranged in a geometric pattern having a spatial relationship with respect to each other to dispense toner enriched developer through said apertures to said development apparatus at a substantially uniform dispensing profile as said developer and toner are transported from said first end of said tube to said opposite end of said tube for varied feed rates of developer and toner to said dispensing tube.
Two component magnetic brush development apparatus including means to deliver two component developer to a developer roll rotatable about at least one stationary magnet, a trim bar to control the level of developer on said rotatable developer roll, means to enable a portion of developer trimmed by said trim bar to be delivered to a developer dispensing assembly for initial contact with freshly dispensed toner, means to mix developer with freshly dispensed toner, said developer dispensing assembly comprising a developer dispensing tube, a toner supply means at a first end of said tube, developer supply means adjacent said toner supply means, transport means to transport toner and developer from said first end of said tube to the opposite end of said tube, said developer dispensing tube having an array of developer dispensing apertures arranged in a geometric pattern having a spatial relationship with respect to each other to dispense developer and toner through said apertures to said development apparatus at a substantially uniform dispensing profile as said developer and toner are transported from said first end of said tube to said opposite end of said tube for varied feed rates of developer and toner to said dispensing tube.
Dependencies are inferred from the claim text.