Image forming apparatus having reduced image errors from image bearing bodies and method of manufacturing same

摘要

An image forming apparatus has a plurality of image bearing bodies (30,40,50,60) in a predetermined sequence, an intermediate transfer medium (70) for running in contact with each of the plurality of image bearing bodies (30,40,50,60), and a plurality of supporting rollers for driving the intermediate transfer medium (70). A distance between centers of at least two image bearing bodies (30,40,50,60) is positive integral multiple of the length of circumference of one of the supporting rollers.