Patent ID: 7380896

Claim:
An ink jet printing apparatus comprising a print head including a plurality of chips each having at least one nozzle array of a plurality of nozzles through which the same color ink is ejected, the chips being connected together along a direction in which the nozzles are arranged, the print head further including connecting portion nozzles that connect a nozzle array in each chip to a nozzle array in an adjacent chip and non-connecting portion nozzles different from the connecting portion nozzles, the ink jet printing apparatus forming an image by allowing ink droplets to be ejected from the nozzles while relatively moving the print head and print media in a direction crossing the nozzle array arranging direction, wherein a plurality of different nozzle arrays are provided in the print head in the crossing direction, the connecting portion nozzles in one of the nozzle arrays overlaps the non-connecting portion nozzles in another nozzle array, and control means controls ejection of ink droplets through the non-connecting portion nozzles in accordance with printing conditions when the connecting portion nozzles and the non-connecting portion nozzles are used to form the same raster extending in the relative moving direction.