| 摘要 |
An ink jet recording head (55) is capable of: preventing any of stagnation in ink flow, formation of vapor bubbles, cavitation, or like problems from occurring in the ink flow; realizing an excellent ink ejection operation, and thereby realizing a high quality gradation expression in recording; and, lessening a degree of a required accuracy both in dimension and in alignment of its components being stacked together. In a method for manufacturing the ink jet recording head (55) provided with a pressure generating chamber (19), this chamber (19) is constructed of a through-hole of a chamber plate (16) and a pair of plates (23, 30), between which plates (23, 30) the chamber plate (16) is sandwiched. The processing step for forming this through-hole further comprises the sub-steps of: forming a first resist film (17) and a second resist film (18) on a first and a second surface of the chamber plate (16), respectively, wherein the resist films (17, 18) assume substantially a same shape, but are different in length from each other when measured in a direction parallel to a flow direction (I) of ink; and, etching away both the first and the second surface of the chamber plate (16) using the resist films (17, 18) as its masks so that the through-hole is formed in the chamber plate (16) and serves as the pressure generating chamber (19). <IMAGE> |
