Patent ID: 6043830
Filing Date: 2000-03-28
Classification: B41J,G03G,G06K

Abstract:
Apparatus for information transfer comprising:an interface for receiving from a computer information representing a voltage signal;a voltage signal source operative to apply voltage signals having a plurality of voltage levels to a plurality of individual elements arranged in operative association with a first surface of a dielectric element having first and second surfaces;a non-imagewise charge flow source having an electrostatic shield and being operative to apply a flow of alternating polarity charges to a second surface of said dielectric element, thereby to provide a charge pattern comprising a plurality of charge density levels and corresponding to said voltage signals, and wherein the spatial resolution of the charge pattern is defined in one direction by the density of said individual elements and in a second direction by an edge of said electrostatic shield;a receiving substrate positioning device operative to place a receiving substrate in proximity to said second surface of said dielectric element; anda second charge source operative to apply a flow of alternating polarity charges to said receiving substrate, thereby to cause information transfer from said dielectric element to said receiving substrate.