Patent ID: 6296347
Filing Date: 2001-10-02
Classification: B41J,G03G

Abstract:
A PC board used for a direct recording apparatus comprising transfer means for retaining charged recording particles and transferring said recording particles in a predetermined direction and a back electrode opposed to said transfer means to electrically attract said recording particles;said PC board comprising:a first aperture formed in said PC board;a second aperture formed in said PC board on a downstream side from said first aperture in said predetermined direction and at a position shifted with respect to said first aperture in a direction perpendicular to said predetermined direction;a first electrode corresponding to said first aperture to control said recording particles to jump from said transfer means toward said back electrode through said first aperture depending on an electric signal supplied from an external power source;a second electrode corresponding to said second aperture to control said recording particles to jump from said transfer means toward said back electrode through said second aperture depending on an electric signal supplied from said external power source;wherein each of said first and second electrodes has a shape wherein a part of a ring shape surrounding said aperture is cut off in said perpendicular direction, andwherein said first electrode does not overlap with said second electrode in said perpendicular direction,said PC board being provided between said transfer means and said back electrode to control said recording particles to jump or not to jump toward said back electrode.