Patent ID: 8342631

Claim:
An inkjet print apparatus comprising: a print device that performs a print by ejecting ink; a scanning device for causing the print device to scan a same print area a plurality of times; a thinning device that thins out binary image data for the same print area by using different mask patterns corresponding to the respective plurality of times of the scans of the same print area; and a print control device that completes the print on the same print area by printing thinned images on the same print area on the basis of binary image data sets obtained by the thinning device for the respective plurality of times of the scans, wherein each of the different mask patterns includes a first area and a second area, the first area having the binary image data thinned out at a relatively high percentage, the second area having the binary image data thinned out at a relatively low percentage, and a difference in print percentage between the first area and the second area in each of both edge parts of an image to be printed where the print head scans back is smaller than a difference in print percentage between the first area and the second area in a center part of the image.