The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 16, 2002

Filed:

Sep. 25, 2000
Applicant:
Inventors:

Roger W. Budnik, Rochester, NY (US);

James M. Pacer, Webster, NY (US);

Scott L. Kauffman, Rochester, NY (US);

Richard M. Maier, Rochester, NY (US);

Assignee:

Xerox Corporation, Stamford, CT (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 1/508 ;
U.S. Cl.
CPC ...
G03G 1/508 ;
Abstract

In a xerographic development system, a primary developer supply is used to develop electrostatic latent images. A secondary developer supply is available to dispense new developer, as needed, into the primary developer supply. A series of inputs, including counting the number of printed pixels and monitoring the reflectivity of a set of test patches, is entered into an algorithm which controls the dispensing of new developer. The various inputs are converted into metrics which relate to an amount of time fresh developer is dispensed into the primary developer supply.


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