| 摘要 |
PURPOSE:To carry out securely the operation of image forming control, enable to form an image of high quality and reduce the manufacturing cost of an image forming device by applying low control voltage to a control electrode of an aperture electrode. CONSTITUTION:An aperture electrode 1 provided with a plurality of apertures 13 is disposed between a back plate 2 on which a medium 3 to be recorded is mounted and a toner carrier roller 9, and a control electrode 14 for applying voltage divided for respective apertures 13 is formed on the upper face of an insulation sheet 12 of the apertures electrode 1 on the side opposite to the medium 3 to be recorded, while a continuous fixed electrode 15 is formed in the laminar shape on the side close to the surface of the toner carrier roller 9 on the lower face side of the insulation sheet 12, and the surface of said fixed electrode 15 is coated with an insulated layer 16 and the toner carrier roller 9 is brought into contact with the surface of the insulated layer 16. Constant voltage is applied at all times to the fixed electrode 15, while to the control electrode 14 -30V is applied corresponding to the non-image forming section and 0V is applied corresponding to the image forming section. |
