Patent ID: 8132878

Claim:
An ink jet printing apparatus for causing a printing head to perform a plurality of printing scannings on a predetermined area of a printing medium along a predetermined direction, the printing head being capable of ejecting an ink and a processing liquid in order to form an image using the ink on the printing medium and cover the formed image using the processing liquid, the printing medium being transported a predetermined distance in a transporting direction crossing the predetermined direction during time between the plurality of printing scannings, the ink jet printing apparatus comprising: a generating unit operable to generate processing liquid ejection data for ejecting the processing liquid from the printing head for the predetermined area for which the formation of the image by the ink is completed; and a control unit configured to cause the printing head to eject the processing liquid, based on the processing liquid ejection data generated by the generating unit, wherein the predetermined area includes a first pixel area and a second pixel area, a length of the predetermined area in the transporting direction corresponding to the predetermined distance of the printing medium transported by one transporting operation, and wherein the plurality of printing scannings includes a first scanning on the predetermined area in which the ink is ejected on the first pixel area and a second scanning, subsequent to the first scanning, on the predetermined area in which the ink is ejected on the second pixel area and the processing liquid is ejected on the first pixel area.