Patent ID: 7083255

Claim:
An ink jet printing apparatus for forming an image on a print medium by moving a print head having a plurality of nozzle groups relative to the print medium in a scan direction as the nozzle groups eject ink from their ink ejection nozzles according to print information, the nozzle groups each having a plurality of ink ejection nozzles and being arranged side by side in the scan direction, wherein each of the nozzle groups has at least one nozzle array, the nozzle array having a plurality of nozzles arrayed in a predetermined array direction crossing the scan direction, and wherein the ink jet printing apparatus includes an ejection volume setting means which sets ink volumes applied to a unit area of the print medium by the nozzle groups in such a way that an ink volume per unit area applied by at least the nozzle group situated most upstream in the scan direction is greater than that applied by the other nozzle groups.