The present image forming apparatus converts driving data in such a manner that when a volume of liquid to be ejected in an (m+1)-th print cycle following an m-th print cycle is a maximum volume of ink among a plurality of predetermined volumes of ink, a volume of liquid to be ejected in the m-th print cycle is any volume other than zero and the maximum volume among the predetermined volumes, in which m-th print cycle (m is an integer number no less than “0”) no ink is to be ejected.