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.
Patent No.:
Date of Patent:
Sep. 06, 2005
Filed:
Jun. 26, 2003
Eric S. Hamby, Fairport, NY (US);
R. Enrique Viturro, Rochester, NY (US);
Eric M. Gross, Rochester, NY (US);
Douglas A. Kreckel, Webster, NY (US);
Eric S. Hamby, Fairport, NY (US);
R. Enrique Viturro, Rochester, NY (US);
Eric M. Gross, Rochester, NY (US);
Douglas A. Kreckel, Webster, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
A method for sensing toner concentration in a developer housing with an optical system containing developer material including toner and carrier, the method, including: emitting light with the optical system through a viewing window in the developer housing onto developer material in the housing; sensing the light reflected off the developer material with the optical system; calculating a toner concentration measurement based upon the sensed light reflected off the developer material; and compensating the toner concentration measurement to account for optical variation due to the developer material condition.