An inkjet printer comprising: a print head including a plurality of nozzles to eject ink; and a print control section configured to print dots in a plurality of sizes by controlling ejection of ink from the plurality of nozzles; characterized in that: the inkjet printer further comprises a nozzle position specifying section configured to specify a position of a first nozzle of the plurality of nozzles that exhibits defective ejection of the ink; the print control section is configured to change a dot size of a dot printed by a second nozzle, which is positioned adjacent to the first nozzle that was specified, to a larger size than a corresponding dot size specified in image data, and to change a dot size of a dot printed by a third nozzle, which is positioned adjacent to the second nozzle and is not the first nozzle, to a smaller size than the dot printed by the second nozzle after the change in dot size; the print control section is configured to compute an ink ejection amount in a predetermined region including at least a region printed by the first nozzle based on the image data, and in the printing by the second nozzle and the third nozzle within the predetermined region or in a peripheral region of the predetermined region, the print control section is configured to adjust the ratio of printed dots for which the dot size is not changed to printed dots for which the dot size is changed based on the ink ejection amount, wherein the print control section is configured to increase the ratio of dots for which the dot size is not changed as the ink ejection amount decreases. a print head including a plurality of nozzles to eject ink; and a print control section configured to print dots in a plurality of sizes by controlling ejection of ink from the plurality of nozzles; characterized in that: the inkjet printer further comprises a nozzle position specifying section configured to specify a position of a first nozzle of the plurality of nozzles that exhibits defective ejection of the ink; the print control section is configured to change a dot size of a dot printed by a second nozzle, which is positioned adjacent to the first nozzle that was specified, to a larger size than a corresponding dot size specified in image data, and to change a dot size of a dot printed by a third nozzle, which is positioned adjacent to the second nozzle and is not the first nozzle, to a smaller size than the dot printed by the second nozzle after the change in dot size; the print control section is configured to compute an ink ejection amount in a predetermined region including at least a region printed by the first nozzle based on the image data, and in the printing by the second nozzle and the third nozzle within the predetermined region or in a peripheral region of the predetermined region, the print control section is configured to adjust the ratio of printed dots for which the dot size is not changed to printed dots for which the dot size is changed based on the ink ejection amount, wherein the print control section is configured to increase the ratio of dots for which the dot size is not changed as the ink ejection amount decreases. the inkjet printer further comprises a nozzle position specifying section configured to specify a position of a first nozzle of the plurality of nozzles that exhibits defective ejection of the ink; the print control section is configured to change a dot size of a dot printed by a second nozzle, which is positioned adjacent to the first nozzle that was specified, to a larger size than a corresponding dot size specified in image data, and to change a dot size of a dot printed by a third nozzle, which is positioned adjacent to the second nozzle and is not the first nozzle, to a smaller size than the dot printed by the second nozzle after the change in dot size; the print control section is configured to compute an ink ejection amount in a predetermined region including at least a region printed by the first nozzle based on the image data, and in the printing by the second nozzle and the third nozzle within the predetermined region or in a peripheral region of the predetermined region, the print control section is configured to adjust the ratio of printed dots for which the dot size is not changed to printed dots for which the dot size is changed based on the ink ejection amount, wherein the print control section is configured to increase the ratio of dots for which the dot size is not changed as the ink ejection amount decreases.