Patent ID: 8424991

Claim:
An inkjet printing method for performing printing by ejecting ink on the basis of image data while scanning a printing head, in which ejection openings for ejecting the ink are arranged, over a printing medium in a direction different from a direction of the arrangement of the ejection openings, the inkjet printing method comprising: a counting step of counting the number of ink ejections in a predetermined area among a plurality of areas on the basis of image data for each of the plurality of areas, the plurality of areas being obtained by dividing, in a main scanning direction, a region over which the printing head scans; a correction step of correcting the image data included in the plurality of areas on the basis of the number of ink ejections in each of the plurality of areas counted in the counting step to decrease variation in density; and a printing step of performing printing by driving the printing head on the basis of image data corrected in the correction step, wherein in the correction step, image data included in a predetermined area are corrected on the basis of an added-up value of the number of ink ejections from an area corresponding to a position where the printing head scans, and printing is implemented to the corresponding predetermined area in the scan direction.