Patent ID: 6963708
Filing Date: 2005-11-08
Classification: G03G

Abstract:
1. A charging system for charging a charge retentive surface having a width dimension, comprising: at least one corona producing element, spaced from the charge retentive surface and arranged generally along the width dimension; and grid elements, interposed between said at least one corona producing element and the charge retentive surface, wherein the grid elements are arranged generally parallel to each other along the width dimension and comprise differentiated grid feature patterns, where the differentiated grid feature patterns comprise the same geometric shape having a plurality of grid mesh opening sizes, and wherein each geometric shape has a center point of its opening and wherein the distance between a first set of parallel lines, each line of which intersects the center point of adjoining shapes of a first grid feature pattern, differs from the distance between a second set of parallel lines, each line of which intersects the center point of adjoining features of a second grid feature pattern and each line of which has the same orientation to the shapes of the second grid feature pattern as the orientation of the first set of parallel lines to the shapes of the first feature pattern.