Patent ID: 7499193
Filing Date: 2009-03-03
Classification: G03G,H04N

Abstract:
1. An image-forming apparatus, comprising: an image-forming section to form a multicolor image on a recording medium by recording a plurality of unicolor images in such a manner that said plurality of unicolor images are superimposed with each other on said recording medium, based on printing image data sets, each of which represents each of said plurality of unicolor images; and a controlling section that determines at least a sub-scanning velocity in a sub-scanning direction relative to said recording medium, corresponding to a printing magnification factor, and adjusts at least an output-start timing in said sub-scanning direction for every printing image data set representing each of said unicolor images, according to said sub-scanning velocity determined in advance; wherein said controlling section adjusts said output-start timing of each of said printing image data sets, so as to prevent said multicolor image from generating a color drift caused by misregistration between said plurality of unicolor images to be superimposed on said recording medium.