Method and apparatus for ink jet printing

摘要

An ink jet printing method forms an image by ejecting a printing property improving liquid which improves printing property of ejected ink onto a printing medium (106) in advance of ejection of the ink onto the printing medium, and ejecting the ink to the printing property improving liquid applied on the printing medium (106). The ink is ejected onto the printing property improving liquid layer under a condition where a specific relational expression of a thickness of a liquid layer of the printing property improving liquid covering a region of the printing medium (106) to be covered with the ink after impacting the ink thereon, a diameter of the ejected ink and ink ejection speed and so forth is satisfied.