| 摘要 |
PURPOSE:To permit development of a magnetic toner consisting of a binder resin, coloring material and magnetic powder by a simultaneous method and transfer thereof to plain paper by a corona transfer method by coating an electric charge transfer carrier on the surface of said toner. CONSTITUTION:The charge transfer carrier 5 is coated on the surface of the magnetic toner 1 consisting of the binder resin 2, the coloring material 3 and the magnetic powder 4. The conductivity of the toner 1 on a sleeve as a function of the rotating speed and impressed voltage of the sleeve is thus improved by the friction and agitation which arise at the time of forming a magnetic brush and, therefore, the provision of such a toner which has the electrical conductivity at the time of development and an insulating characteristic at the time of transfer is permitted. The toner which permits corona transfer as an ordinary toner at the time of transfer is thereby realized. |
