Electrophotography – Image formation – Development
Reexamination Certificate
2007-08-28
2007-08-28
Gray, David M. (Department: 2852)
Electrophotography
Image formation
Development
C399S256000
Reexamination Certificate
active
11378810
ABSTRACT:
An improved development station extends the useful life of toner in the housing and increases the number of images developed by the developer supply. The improved development station includes a toner supply for providing toner to a developer sump; a mixing auger for uniformly blending and charging toner particles supplied by the toner supply into the developer material; a magnetic roller for receiving the developer material and bringing the developer material into contact with a photoreceptive member, and a variable developer material restrictor for variably restricting flow of developer material to vary the mechanical stress delivered to the developer material.
REFERENCES:
patent: 5659859 (1997-08-01), Kikuta et al.
patent: 6785481 (2004-08-01), Bray et al.
McConville Paul John
Wayman William H.
Gray David M.
Maginot Moore & Beck
Ready Bryan
Xerox Corporation
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