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:
Jun. 06, 1989
Filed:
Jun. 02, 1988
Douglas P Connolly, Webster, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An imaging process having reduced toner contamination of the printing machine and copies produced therefrom is provided where successive developed toner images are formed on successive registered areas of an endless imaging member movable through a path past a plurality of processing stations by creating an electrostatic fringe field across the width of the imaging member in advance of the lead edge of developed toner image in a registered area of the image member of sufficient magnitude to attract otherwise contaminating toner thereto as it traverses the path whereby contaminating toner is not attracted to successive registered areas of the imaging member. In a preferred embodiment the fringe scavenger filed has a gradient more than 15 volts per millimeter.