Electrophotography – Image formation – Development
Reexamination Certificate
2006-01-31
2006-01-31
Chen, Sophia S. (Department: 2852)
Electrophotography
Image formation
Development
C399S054000, C399S257000
Reexamination Certificate
active
06993272
ABSTRACT:
A method for producing a toner of a custom color in a developer unit including a housing defining a reservoir for storing a supply of toner, a donor member for transporting toner to an imaging surface; including: identifying custom color requested; determining color of toner in the reservoir; detoning toner on the donor member if the color of toner in the reservoir is beyond a predefined value in color space from the custom color requested; calculating and dispensing primaries toner colors to be added to the reservoir to obtained the custom color requested; mixing the primary toner colors dispensed in the reservoir; and evaluating and comparing the color components of the toner being mixed to the custom color requested.
REFERENCES:
patent: 5557393 (1996-09-01), Goodman et al.
patent: 5781828 (1998-07-01), Caruthers et al.
patent: 5892891 (1999-04-01), Dalal et al.
patent: 5933683 (1999-08-01), Snelling et al.
patent: 6618564 (2003-09-01), Lange et al.
patent: 6640075 (2003-10-01), Weber et al.
Co-pending U.S. Appl. No. 10/284,541, filed Oct. 30, 2002, entitled Electrophotographic Development System With Toner Purging, by Scott D. Weber et al.
Bray Daniel M.
Lange Clark V.
Bean II Lloyd F.
Chen Sophia S.
Gleitz Ryan
Xerox Corporation
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