Conditioning apparatus for non-impact, direct charge electrographic printer belt

摘要

A belt conditioner for non-impact electrographic printing apparatus using a flexible dielectric belt (10) including a conductive member forming a ground plane (51) opposite the dielectric surface (52) has plural electrically conductive rollers (40, 41) engaging the dielectric charge receiving surface (52) to effect controlled discharge of the surface to a uniform surface electrostatic voltage before direct charge deposition by a print head (14) to form a latent electrostatic image. Corona discharge devices (35, 36, 37) can also be utilized with the rollers (40, 41) to obtain the desired belt conditioning.