| 摘要 |
A liquid ejection head has recessed portions are formed in an ejection face, such that a distance d1 is between a center of an ejection opening in one recessed portion and an other-side side face of another recessed portion adjacent thereto on one side, where a distance d2 is between the center and a one-side face of another recessed portion adjacent to the one recessed portion on the other side, and where a distance x1 is between the center and a one-side side face of the one recessed portion, and a distance x2 is between the center and an other-side side face thereof. A central position of a bottom portion of the one recessed portion is positioned relative to the center, such that a relationship between distance d1 and distance d2 is the same as a relationship between distance x1 and distance x2. |
