| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electrostatic charging controller which easily detects an image quality defect to control a voltage applied to a photoreceptor 2 to an optimal value. <P>SOLUTION: The electrostatic charging controller has an electrode 12 which is disposed in proximity to the photoreceptor 2 and covers the photoreceptor 2 in its axial direction throughout, and a voltage detection part 13 for detecting a surface potential of the photoreceptor 2 , which is induced in the electrode 12. Since the electrode 12 covering the photoreceptor 2 in its axial direction throughout is provided, the surface potential in the axial direction of the photoreceptor 2 and the image quality defect can be detected at once. Consequently, the optimal voltage to be applied to the photoreceptor can be quickly obtained. <P>COPYRIGHT: (C)2007,JPO&INPIT |
