Patent Number: 6,167,214

Title: Feed forward toner concentration control for an imaging system

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 specifically, the present invention relates to a feed forward toner concentration control system and method for replacing toner in each developer structure, which was used to develop a latent image on a photoreceptor belt, in order to maintain toner concentration in at least one developer structure. First and second pixel counts for first and second toner in each sector are received. The first toner mass is estimated based on first pixel counts. The second toner mass is estimated based on second pixel counts. Feed forward dispense commands are generated based on first toner mass estimate and second toner mass estimate to dispense each toner into each corresponding developer structure to replace toner used to develop the latent image on the photoreceptor in order to maintain toner concentration in each developer structure.

Inventors: Scheuer; Mark A. (Williamson, NY), Padmanabhan; Prasad (San Francisco, CA), Ward; Joseph W. (Pittsford, NY)

Assignee: Xerox Corporation

International Classification: G03G 15/01 (20060101); G03G 015/08 ()

Expiration Date: 12/26/2017