Patent ID: 8253974
Filing Date: 2012-08-28
Classification: B41J,G06K,H04N

Abstract:
1. An image processing apparatus for forming an image by main scanning a printhead having a plurality of printing elements on the same scan line of a print medium multiple times, the apparatus comprising: an input unit configured to input image data; a storage unit configured to store a table that specifies a division ratio of a printing amount for each of the printing elements, wherein, with respect to each scan line, the division ratio is determined based on the number of times of main scanning for forming an image on the scan line, and the number of the printing elements used for each main scan, and wherein the number of times of main scanning for forming an image differs in at least a part of a plurality of scan lines, or a feeding amount of the print medium according to the number of the printing elements to be used differs in at least a part of plurality of scan lines; a setting unit configured to set the printing amount for each of the printing elements for each main scan of the printhead in accordance with the image data based on the table; and an N-ary (where N is an integer not less than two) processing unit configured to generate a dot pattern as a formation target by performing N-ary processing for the printing amount set by said setting unit.