Printing apparatus and method of controlling printing apparatus

A method for controlling a printing apparatus, the printing apparatus including;

• a print head which includes a first nozzle group in which a plurality of nozzles which discharge slow permeation black ink are arranged at a predetermined pitch in a sub scanning direction, and a second nozzle group in which a plurality of nozzles which discharge excessive permeation black ink are arranged at the same pitch as the first nozzle group in the sub scanning direction and are deviated from the first nozzle group by ½ pitch in the sub scanning direction;
• and
• a control unit which controls scanning of the print head in a main scanning direction and ink discharging through the first and second nozzle groups,
• wherein the control unit performs printing in any one of a plurality of printings including;
• a first printing in which printing is performed such that slow permeation black ink is discharged through the first nozzle group while excessive permeation black ink is not discharged through the second nozzle group, and
• a second printing in which the movement speed of the print head is faster than that in the first printing, one band is printed with one scanning of the print head and printing is performed such that slow permeation black ink is discharged through the first nozzle group and excessive permeation black ink is discharged through the second nozzle group.