A printing method comprises the steps of: in a first movement, moving a print head to form dots on a medium at aperiodic intervals in a moving direction of the print head, wherein the print head includes N pieces of nozzles arranged at a constant pitch in a direction that intersects with the moving direction, wherein the N pieces of nozzles are for forming N dots of a same color, and wherein N is an integer of at least two; in second through M-th movements, moving the print head to form, on the medium, the rest of the dots that were not formed in the first movement, wherein M is an integer of at least two; and repeating the first through M-th movements to print information on the medium.