| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an image forming apparatus in which potential unevenness in a bright part derived from exposure sensitivity unevenness in a photoreceptor may be detected by a simple structure. <P>SOLUTION: An image forming apparatus 100 comprises: a photoreceptor 11; charging means 17; exposing means 10; current detecting means 44 for detecting a DC current flowing through the charging means 17; and control means 47 for forming, on the rotating photoreceptor 11, a measurement electrostatic latent image, which is changed in position along a rotation axis direction of the photoreceptor 11 in a stepwise manner or continuously to reach a charging part C and has a prescribed width along the rotation axis direction of the photoreceptor 11, and for obtaining information on an exposure sensitivity distribution along the rotation axis direction of the photoreceptor 11 on the basis of a value of the DC current detected by the current detecting means 44 when the measurement electrostatic latent image reaches the charging part C. <P>COPYRIGHT: (C)2012,JPO&INPIT |
