A printing head, having symmetrically-arranged ejection openings, can suppress deterioration in image quality as caused by manufacturing errors or problems in mounting accuracy thereof. Specifically, in the case the printing head inclines, for example, by 0.5 degrees at a line connecting corresponding ejection openings of ejection opening arrays relative to the scanning direction, deviations occur in the dots formed through one of the ejection opening arrays with reference to the dots formed through another ejection opening array. However, the deviations can be minimized by arranging adjacently small-ejection opening arrays for cyan and magenta with a spacing reduced between those ejection opening arrays.