| 摘要 |
PROBLEM TO BE SOLVED: To suppress reduction in image quality.SOLUTION: A head 1 includes an ejection surface 1a having a plurality of ejection openings 108 disposed at equal intervals in relation to a main scanning direction. These ejection openings 108 constitute a plurality of ejection opening sets 108A, 108B. Each of the ejection opening sets 108A, 108B is constituted of two discharge openings 108 adjacent in the main scanning direction. The two discharge openings 108 constituting each discharge opening set 108A, 108B are disposed so that a virtual straight line LA, LB mutually connecting centers of the respective ejection openings is parallel with the ejection surface 1a and is inclined with respect to a direction intersecting the main and sub-scanning directions. In two discharge opening sets 108A, 108B adjacent in the main scanning direction, the virtual lines LA, LB are inclined oppositely to each other relative to the sub-scanning direction. |
