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:
Mar. 27, 2001
Filed:
Nov. 12, 1999
Dale R. Mashtare, Bloomfield, NY (US);
Christopher Snelling, East Rochester, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An apparatus for non-interactive, dry powder development of electrostatic Images composed of solid areas and fine lines areas on an imageable surface including a housing containing developer material; a magnetic member, spaced a predefined distance from said image, for transporting said developer material from said housing to develop solid areas of said image, said magnetic roll including an magnetic core and a cylindrical sleeve enclosing and rotating about said magnetic core; and a resonating donor member, adjacent to said magnetic roll and spaced from the image receiving member and adapted to transport marking particles to a development zone adjacent the image receiving member; an electrode positioned in the development zone between the image receiving member and the donor member; a voltage supply for electrically biasing said electrode during a developing operation with an alternating current to detach marking particles from said resonating donor member, forming a cloud of marking particles in the development zone, and developing fine line areas of said image from the cloud.