Printing plate with reversible electrical charge-controlled wettability

摘要

A method and system for lithographic printing by controlling the surface energy of a printing plate (12) to affect its hydrophilic and hydrophobic properties. These properties enable the ink to be applied to the printing plate (12) in an imagewise manner and provides for rapid production of images on a recording medium. The lithographic printing plate (12) may be rewritten repeatedly between printing jobs or may even by rewritten between individual recording media. <IMAGE>