Patent ID: 6984011

Claim:
A printing control apparatus that generates print data to be supplied to a printer including a printing head unit, the printing head unit performing main scanning in which a head having a plurality of nozzles that eject ink is moving forward and backward in prescribed directions relative to a print medium, carrying out sub-scanning in which the print medium is forwarded in a sub-scanning direction perpendicular to the main scanning direction relative to the head, and driving the head in accordance with the print data along at least one of the forward or reverse scanning passes such that dots are formed on at least some of a plurality of pixels aligned along the main scanning direction, wherein the printing control apparatus generates the print data before supplying to the printer the print data having pixel value data that includes image pixel value data and adjustment pixel value data irrespective of a size of a blank space on each side of an image in the print data, the image pixel value data indicating a dot formation status regarding image pixels that constitute images, the adjustment pixel value data indicating existence of adjustment pixels in which dots are not formed and are used to adjust positions of the image pixels in the main scanning direction, wherein at least a part of the adjustment pixel value data has a same format as the image pixel value data.