| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve highly accurate meander correction control for a belt by preventing increases in the size and cost of an apparatus. <P>SOLUTION: An image forming apparatus 100 includes: a contactor 202 that contacts a widthwise edge of an intermediate transfer belt 8 and is displaced according to the widthwise position of the intermediate transfer belt 8; and a displacement sensor 403 for detecting the position of the contactor 202. Based on the detection result of the displacement sensor 403, the widthwise position of the intermediate transfer belt 8 is controlled. At this time, based on output from the displacement sensor 403, the widthwise position of the intermediate transfer belt 8 is controlled by defining, as a home position, the position where a positional change of the edge of the intermediate transfer belt 8 is equal to or greater than a predetermined threshold value Th. <P>COPYRIGHT: (C)2011,JPO&INPIT |
