Patent ID: 6386684
Filing Date: 2002-05-14
Classification: B41J

Abstract:
A curved print head for electrostatic printing, said print head being cylindrically concave to and for use with a cylindrical drum having an axis and a radius of curvature comprising:a first electrode extending substantially parallel to the axis of the drum and having a radius of curvature larger than the radius of curvature of the drum, wherein said first electrode is placed relative to the drum such that the distance between said first electrode and the drum varies across the width of the first electrode and extending substantially parallel to the axis of the drum; a second electrode having a radius of curvature larger than the radius of curvature of the drum, wherein said second electrode is placed relative to the drum such that the distance between said second electrode and the drum varies across the width of the second electrode; said first and said second electrode having a radius of curvature substantially similar to the radius of curvature of the curved print head; and a dielectric between said first and said second electrode.