There is provided an inkjet printer including an inkjet head, a conveyance section, and a controller. The ink jet head includes a plurality of nozzle groups. Between the plurality of nozzle groups, the nozzles forming the nozzle groups are positioned in conformity with each other, respectively, in a second direction. The controller causes the conveyance section to convey the recording medium between a first pass and a second pass such that the respective nozzle groups have partly overlapped scanning areas, and causes the ink jet head to print separately between the first pass and the second pass in the second direction. The controller sets usable bordering positions in the overlapping range with respect to the passes. The controller sets the usable bordering positions based on one of such conditions as a duty of printing on the recording medium and a type of the nozzle groups to be used in printing.