IMAGE FORMATION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an image formation device with less failure and long life cycle of the product which can certainly control the phase angle of a polygon mirror without applying a burden to a motor which actuates the polygon mirror and can reduce a color shift in the sub-scanning direction when the color shift generated in the same device is corrected.

SOLUTION: The amount of color shift is substituted with the one representing that the position of writing start of a 1st imaging means in the sub-scanning direction is delayed more than the one of a 2nd imaging means in the same direction by correcting the positions of writing start of the imaging means in the sub-scanning direction.

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