Printing apparatus and printing method

A printing apparatus including a first nozzle array having ejection ports configured to eject a color material ink and arranged in a sub scanning direction and a second nozzle array and a third nozzle array each having ejection ports configured to eject a reactive liquid and arranged in the sub scanning direction, the printing apparatus printing an image in a predetermined region on a print medium by scanning the first nozzle array, the second nozzle array, and the third nozzle array N times (where N is an integer of 2 or greater) in a main scanning direction intersecting with the sub scanning direction, the printing apparatus comprising

• a control unit configured to perform control so that
• in a case where the application amount of the reactive liquid to the predetermined region is a first amount, the application amount of the reactive liquid by the second nozzle array is larger than that by the third nozzle array,
• in a case where the application amount of the reactive liquid to the predetermined region is a second amount which is larger than the first amount, the application amount of the reactive liquid by the third nozzle array is larger than that by the second nozzle array, and
• out of the N scans with which the second nozzle array and the third nozzle array print the image in the predetermined region on the print medium, a total application amount of the reactive liquid printed by first N/2 scans and a total application amount of the reactive liquid printed by second N/2 scans are different between the second nozzle array and the third nozzle array.