An inkjet printing apparatus configured to perform a printing operation on a recording medium set on a platen in a plurality of passes, the inkjet printing apparatus comprising: a head configured to reciprocate in a main scanning direction while discharging an ink curable by being irradiated with light on the recording medium; an irradiator having a plurality of irradiation elements divided correspondingly to respective passes and configured to irradiate the ink on the recording medium with light; and an irradiation controller configured to control the plurality of irradiation elements, wherein the plurality of irradiation elements are controlled by the irradiation controller so as to turn on those of the plurality of the irradiation elements that correspond to the passes before and inclusive of an (n - m)th pass, and so as to turn off or control those of the plurality of irradiation elements that correspond to the last m passes to have a lower illuminance than the those of the plurality of irradiation elements that correspond to the passes before and inclusive of the (n - m)th pass, where n is the number of the plurality of passes, and m is an integer smaller than n and greater than or equal to 1, so that the ink discharged in the last m passes on the recording medium remains uncured, characterized in that: the irradiator has a plurality of rows in which a plurality of the irradiation elements are arranged in the main scanning direction, the plurality of rows being arranged in the sub scanning direction orthogonal to the main scanning direction, and the irradiation controller is configured to control the plurality of irradiation elements such that in the plurality of irradiation elements corresponding to the last m passes, there is at least one row of irradiation elements that are turned on, and there is at least one row of irradiation elements that are turned off or that have a lower illuminance than the irradiation elements that are turned on. a head configured to reciprocate in a main scanning direction while discharging an ink curable by being irradiated with light on the recording medium; an irradiator having a plurality of irradiation elements divided correspondingly to respective passes and configured to irradiate the ink on the recording medium with light; and an irradiation controller configured to control the plurality of irradiation elements, wherein the plurality of irradiation elements are controlled by the irradiation controller so as to turn on those of the plurality of the irradiation elements that correspond to the passes before and inclusive of an (n - m)th pass, and so as to turn off or control those of the plurality of irradiation elements that correspond to the last m passes to have a lower illuminance than the those of the plurality of irradiation elements that correspond to the passes before and inclusive of the (n - m)th pass, where n is the number of the plurality of passes, and m is an integer smaller than n and greater than or equal to 1, so that the ink discharged in the last m passes on the recording medium remains uncured, characterized in that: the irradiator has a plurality of rows in which a plurality of the irradiation elements are arranged in the main scanning direction, the plurality of rows being arranged in the sub scanning direction orthogonal to the main scanning direction, and the irradiation controller is configured to control the plurality of irradiation elements such that in the plurality of irradiation elements corresponding to the last m passes, there is at least one row of irradiation elements that are turned on, and there is at least one row of irradiation elements that are turned off or that have a lower illuminance than the irradiation elements that are turned on. the irradiator has a plurality of rows in which a plurality of the irradiation elements are arranged in the main scanning direction, the plurality of rows being arranged in the sub scanning direction orthogonal to the main scanning direction, and the irradiation controller is configured to control the plurality of irradiation elements such that in the plurality of irradiation elements corresponding to the last m passes, there is at least one row of irradiation elements that are turned on, and there is at least one row of irradiation elements that are turned off or that have a lower illuminance than the irradiation elements that are turned on.