| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a charge controller without generating image quality defect even when the film thickness of a body to be charged varies. <P>SOLUTION: The electrostatic charge controller includes a first charge roll 3 for charging a photoreceptor 2 to target potential, a second charge roll 4 for previously charging the photoreceptor 2 to reverse polarity to the target potential, and a control part 14 for controlling charge potential charged to the reverse polarity on the second charge roll 4 so that direct current made to flow in the first charge roll 3 is a prescribed value or more when being charged by the first charge roll 3. Thus, even when the film thickness of the photoreceptor 2 varies, discharge current is sufficiently secured not to generate the image quality defect. <P>COPYRIGHT: (C)2007,JPO&INPIT |
