| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus where a discharge product is suppressed from sticking to a photoreceptor by optimizing an AC bias applied to the photoreceptor, and also, the wearing of the photoreceptor is reduced by omitting an auxiliary AC apply process, and also, an easy electrification control is attained, and to provide a method of controlling the electrification of an electrifying roll. <P>SOLUTION: The image forming apparatus includes: a film thickness detecting means 33 for detecting the film thickness of a photoreceptor layer on the photoreceptor 2 without applying the AC component; an environment detecting means S for detecting the environment; an AC component setting means 35 for setting the AC component of the bias based on the detection results by the film thickness detecting means 33 and the environment detecting means S; and an electrification control means 30 for controlling a voltage or a current to be applied to the electrifying roll 3 based on the value of the AC component set by the AC component setting means 35. <P>COPYRIGHT: (C)2007,JPO&INPIT |
