Patent ID: 8184339

Claim:
A data generating apparatus for generating binary data used for performing printing on a printing medium by using a printing head in which a plurality of nozzles are arranged, said apparatus comprising: a setting part for setting a printing mode, in which a plurality of movements of the printing head are performed and the printing medium is conveyed by a conveying amount smaller than an arranging width of the plurality of nozzles of the printing head between each of the plurality of movements, to perform printing on an area corresponding to the conveying amount; a selection part for selecting pattern data used for binarization having a number of pixels in a conveying direction of the printing medium, the number of pixels being equal to one-Kth (K is a positive integer) of a number of pixels that corresponds to the conveying amount in the printing mode set by said setting part, from a plurality of pattern data used for binarization that differ in a number of pixels in the conveying direction of the printing medium from each other; and a generation part for generating binary data corresponding to the area by using the pattern data selected by said selection part.