| 摘要 |
<P>PROBLEM TO BE SOLVED: To set the rotational phase difference of each of a plurality of photoreceptor drums to a prescribed value in a state where rubbing with a belt is restrained to be little. <P>SOLUTION: Driving and rotating the photoreceptor drums (K, Y, M, C) and driving and conveying the belt 2 are simultaneously started by drum/belt driving start means 10-1 (K, Y, M, C, V), and the driving and rotating stop time of each of a plurality of photoreceptor drums and the driving and conveying driving stop time of the conveying belt are set by drum/belt driving time calculation means 10-2 (K, Y, M, C, V) based on the result of detection by reference mark detection parts 5 (K, Y, M, C), then driving and rotating each of a plurality of photoreceptor drums 3 (K, Y, M, C) and driving and conveying the conveying belt 2 are stopped by drum/belt driving stop means 10-3 (K, Y, M, C, V) based on the result of calculation by the drum/belt driving time calculation means 10-2 (K, Y, M, C, V). <P>COPYRIGHT: (C)2006,JPO&NCIPI |
