US Patent 7648225 Printing method, printing system and storage medium

A printing method includes: printing an image to be printed on a medium by repeating alternately a dot forming process for forming dots on the medium by ejecting ink from each nozzle of a plurality of nozzles, and a carrying process for carrying the medium in a carrying direction, and forming a plurality of rows of dots, lined up in the carrying direction, that are configured by a plurality of dots lined up in a movement direction; selecting a printing mode according to the number of the dots to be formed in a predetermined region of the medium, from among a plurality of the printing modes each with a different ratio of the number of dot rows formed using a different number of nozzles to the number of dot rows formed using a certain number of nozzles; and printing on the region to be printed based on the selected printing mode.