Patent ID: 6175709
Filing Date: 2001-01-16
Classification: G03G

Abstract:
A toner support, which supports on its surface a non-magnetic one-component developer in the form of a thin layer, coming in contact with or in proximity to an image forming body, and supplies said developer onto the surface of said image forming body, thereby forming a visual image on said image forming body, said toner support comprising:a shaft having a good conductivity; anda semi-conductive elastic layer formed around the outer periphery of said shaft;wherein an electric resistance of said toner support when a voltage of 100 V is applied thereto is in a range of 10.sup.4 to 10.sup.10 .OMEGA.; andthe maximum value of a surface potential of said toner support, which is measured after an elapse of 0.35 sec since the surface of said toner support is charged by generating a corona discharge by means of applying a voltage of 8 kV to a corona discharger disposed apart from the surface of said toner support by 1 mm, is in a range of 90 V or less.