Patent ID: 8363251
Filing Date: 2013-01-29
Classification: B41J,H04N

Abstract:
1. An image forming apparatus that generates N pieces of print data representing dot patterns to be printed on the same region of a recording medium to form an image represented by image data, the apparatus comprising: an obtaining unit configured to obtain constraint data that specifies non-print pixels obtained from a result of halftone processing to the image data; a division unit configured to divide each pixel value of the image data into N values to generate N pieces of input data; a generation unit configured to generate the N pieces of print data, wherein the generation unit generates at least one of the N pieces of print data by converting the input data by halftone processing that uses the constraint data; and an updating unit configured to update the constraint data by adding print pixels of k pieces of print data that have been already generated to the constraint data as non-print pixels when the generation unit generates k+1th piece of print data by the conversion.