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:
Dec. 15, 1998
Filed:
Apr. 01, 1998
Fred W Schmidlin, Pittsford, NY (US);
Other;
Abstract
A system for delivering electrostatic toner to an image receiving member includes a traveling electrostatic wave toner conveyor with a delivery segment adjacent to the image receiving member. The delivery segment includes parallel traveling wave conveyor electrodes and nudging electrodes. The conveyor electrodes are connected to a source of DC-biased multiphase electric power to establish a traveling electrostatic wave in the delivery segment to move toner in a synchronous surfing mode. The nudging electrodes are connected to a source of repulsive DC voltage of the same polarity as the toner to slow and deflect toner toward the image receiving member. The delivery segment further includes overlaid barrier electrodes to maintain uniform delivery of toner to all apertures in an electronically addressable printhead.