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:
May. 30, 2000
Filed:
May. 17, 1999
Michael D Thompson, Rochester, NY (US);
Tuan Anh Vo, Hawthorne, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An apparatus for developing a latent image recorded on an imaging surface, comprising, a housing defining a chamber storing a supply of developer material; a donor member, spaced from the imaging surface, for transporting developer material on the surface thereof to a region opposed from the imaging surface, said donor member includes an electrode array on the outer surface thereof, said array including a plurality of spaced apart electrodes extending substantial across width of the surface of the donor member; means for loading developer material onto said donor member, a multi-phase voltage source operatively coupled to said electrode array, the phase being shifted with respect to each other such as to create an electrodynamic wave pattern having at a phase velocity for moving developer material to and from a development zone; and an AC voltage source operatively coupled to said electrode array, for applying an AC voltage in said development zone between the donor member and said imaging surface.