Patent ID: 6050677
Filing Date: 2000-04-18
Classification: G03G

Abstract:
A method for DEP printing on a surface of an image receiving substrate irrespective of surface topology and conductivity of said substrate, comprising the steps of:applying a conductive layer upon said surface of said substrate;connecting said conductive layer by a conductive charge applying device to a voltage source;providing a DC field between said conductive layer and a source of toner particles, creating a flow of charged toner particles from said source of toner particles to said conductive layer;interposing a printhead structure, having printing apertures and control electrodes around said printing apertures, between said source of toner particles and said substrate;applying a voltage on said control electrodes for image wise controlling said flow of toner particles;image wise depositing toner particles on said conductive layer on said surface of said substrate through said printing apertures and fixing said toner particles to said substrate.