Patent ID: 6891554
Filing Date: 2005-05-10
Classification: G03G

Abstract:
1. An image forming device, comprising: a body to be scanned that moves in a sub-scanning direction; a writing means for scanning the body in a main scanning direction with a light beam according to image information to form a reference image on the body and repeating the scanning plural times to form plural images; and a second body on which the plural images are overlaid to form a color image, wherein the writing means starts writing the reference image at a start time ty wherein a start time for an image other than the reference image is changed depending on the start time of the reference image, and wherein the predetermined time is T/2 where T is a period of the main scanning synchronizing signal of the writing means, and wherein the writing means delays starting writing the image other than the reference image by T when the following relationship is satisfied: wherein t 1 =(ty 1 −tx 1 ) and t 2 =(ty 2 −tx 2 ) where tx 2 represents a time when an image forming start signal of the sub-scanning direction for the image other than the reference image is detected, and ty 2 represents a start time when the main scanning synchronizing signal is firstly generated by the writing means after the time tx 2 .