Patent ID: 8333452

Claim:
An image forming apparatus comprising: a recording head, including a first group of nozzles arranged in a first direction and a second group of nozzles arranged in the first direction and provided adjacent to the first group of nozzles in a second direction that is perpendicular to the first direction, and configured to record dots on a recording medium by jetting ink drops thereon from the nozzles; and a print control unit configured to control a relative scan of the recording head with respect to the recording medium in the second direction so that a first non-overlapping region on the recording medium is scanned by at least one first nozzle of the first nozzle group, an overlapping region on the recording medium is scanned by at least three second nozzles of the first nozzle group, other than the first nozzle, and at least three third nozzles of the second nozzle group, and a second non-overlapping region on the recording medium is scanned by at least one fourth nozzle of the second nozzle group, other than the third nozzles, wherein the print control unit controls a recording density of the dots and a number of consecutive dots recorded by the at least three second nozzles in the second direction within the overlapping region to decrease from a first boundary between the overlapping region and the first non-overlapping region towards a second boundary between the overlapping region and the second non-overlapping region, and a recording density of the dots and a number of consecutive dots recorded by the at least three third nozzles in the second direction within the overlapping region to decrease from the second boundary towards the first boundary.