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:
Jan. 09, 2001
Filed:
Oct. 27, 1999
Patricia J. Donaldson, Pittsford, NY (US);
John Buranicz, Rochester, NY (US);
Paul A. Garsin, Webster, NY (US);
Eric S. Hamby, Fairport, NY (US);
Daniel W. MacDonald, Farmington, NY (US);
Mark A. Scheuer, Williamson, NY (US);
Edward W. Smith, Jr., Rochester, NY (US);
Eric M. Gross, Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
The present invention generally relates to an imaging system, and more specifically, a method and apparatus for accurately predicting toner usage and hence toner dispensing requirements in an imaging system. More particularly, the present invention relates to a toner concentration control system for maintaining toner concentration in a developer structure, which is connected to a dispenser containing toner. The toner concentration control system comprises: a sensor, reading the toner concentration; means for determining a toner age correction of toner concentration read by the sensor based on toner age of the toner in the developer structure; means for adjusting a toner concentration target based on the correction; and means for generating a feedback dispense command based on the adjusted toner concentration target to dispense toner into the developer structure to maintain the toner concentration in the developer structure.