Patent ID: 8035852

Claim:
A frame data producing apparatus for use in an image recording apparatus for forming an image on an image recording surface by relatively moving image recording units each having a plurality of image recording dot forming elements for forming an image recording dot group of a plurality of image recording dots on said image recording surface, in a predetermined scanning direction over the image recording surface, and successively supplying frame data for each of said image recording units to the image recording unit as the image recording unit moves in the scanning direction to cause said image recording units to form said image recording dot group on said image recording surface on a chronological basis, said frame data producing apparatus comprising: an image recording dot forming element-specific data generator for generating image recording dot forming element-specific data to be successively supplied to each of said image recording dot forming elements from image data corresponding to the image to be formed on said image recording surface; and a frame data generator for generating intermediate data including extracted data change points of said image recording dot forming element-specific data and thereafter generating said frame data by inverting the intermediate data with respect to said data change points of said intermediate data.