Ink-jet recording head

摘要

A passage forming plate (1) is provided with a plurality of pressure chambers (5). A nozzle plate (2) is provided with nozzle holes (6). The nozzle plate (2) is disposed on the front surface (1a) of the passage forming plate (1) so that the nozzle holes (6) communicate with the pressure chambers (5), respectively. Pressure is applied to the ink in the pressure chambers (5) by piezoelectric vibrators (8). A casing member (3) with an ink reservoir (10) for containing the ink to be supplied to the pressure chambers (5) is disposed on the side of the back surface (1b) of the passage forming plate (1). A sealing plate (4) is held between the passage forming plate (1) and the casing member (3). The sealing plate (4) is provided with a plurality of through holes (18) communicating with the plurality of pressure chambers (5), respectively.