ELECTROSTATIC RECORDING APPARATUS

摘要

PURPOSE:To stably form a sharp image on lain paper by a simple structure by applying the high voltage corresponding to printing data between a segment electrode and a screw pole to selectively transfer the toner on a dielectric body to paper. CONSTITUTION:A corona ion having positive polarity inverse to the friction charge polarity of toner (t) is discharged to the rear of a dielectric drum 6 by a corona discharge device and the toner (t) is uniformly adhered to the peripheral surface of the dielectric drum 6 by the electrostatic attraction force of said drum and the toner t0 adhered and carried on the peripheral surface of the dielectric drum 6 is fed to an electrode opposed part F by the rotation of the drum 6. By controlling the opening and closing of a switch 4e corresponding to printing data, an electric field is formed to the opposed part (intersecting point) of a segment electrode 4d and the linear electrode 4g provided to a screw pole 4b and the toner charged negatively is transferred from the surface 6a of the dielectric drum 6 to paper P by the force of the electric field.