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:
Apr. 29, 2008
Filed:
Oct. 31, 2005
Michael D. Thompson, Rochester, NY (US);
James M. Chappell, Webster, NY (US);
Steven C. Hart, Webster, NY (US);
Patrick J. Howe, Fairport, NY (US);
Ajay Kumar, Fairport, NY (US);
Steven R. Leroy, Hilton, NY (US);
Paul W. Morehouse, Webster, NY (US);
Palghat S. Ramesh, Pittsford, NY (US);
Fei Xiao, Penfield, NY (US);
Michael D. Thompson, Rochester, NY (US);
James M. Chappell, Webster, NY (US);
Steven C. Hart, Webster, NY (US);
Patrick J. Howe, Fairport, NY (US);
Ajay Kumar, Fairport, NY (US);
Steven R. Leroy, Hilton, NY (US);
Paul W. Morehouse, Webster, NY (US);
Palghat S. Ramesh, Pittsford, NY (US);
Fei Xiao, Penfield, NY (US);
Xerox Corporation, Norwalk, CT (US);
Abstract
A development subsystem is used to develop developer having semiconductive carrier particles and toner particles. The development subsystem includes a developer housing, for retaining a quantity of developer having semiconductive carrier particles and toner particles, a first magnetic roll having a stationary core with at least one magnet and a sleeve that rotates about the stationary core of the first magnetic roll, a second magnetic roll having a stationary core with at least one magnet and a sleeve that rotates about the stationary core of the second magnetic roll, and a motor coupled to the first and the second magnetic rolls to drive the rotating sleeves of the first and the second magnetic rolls in a direction that is against the direction of a photoreceptor that rotates in proximity to the first and the second magnetic rolls. The first and the second magnetic rolls carry semiconductive carrier particles and toner particles through a development zone formed by the first and the second magnetic rolls.