| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent density unevenness of an image from generating and to prevent an image quality from worsening because the continuity of an image density is hindered for a photosensitive body in which charging unevenness is present, or a photosensitive body in which also sensitivity unevenness coexists in addition to that, while upsizing and cost increase of an apparatus are avoided. <P>SOLUTION: For each of a plurality of divided regions divided from a photosensitive body drum 1 surface, an exposure source 2 is controlled so that exposure is carried out by an exposure which has an increasing exposure Ea corresponding to a difference between an initial potential of the divided region and a reference initial potential V0 added to an exposure obtained by nearly linearly converting a pixel gradation, in all gradations of the pixel gradation including a gradation 0. Exposure control for the increasing exposure Ea is carried out by increasing an exposure time for each pixel. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
