Method of manufacturing liquid ejecting device

A method of manufacturing a liquid ejecting device equipped with a liquid ejection head comprising a pressure chamber communicating with an ejection port for ejecting liquid and having an opening for introducing liquid to be ejected from the ejection port and a plurality of air chambers separated from the pressure chamber, a piezoelectric body being arranged between the pressure chamber and at least one of the air chambers, a pair of electrodes being provided, one on the wall of the pressure chamber and the other on the wall of the at least one of the air chambers so as to sandwich the piezoelectric body, the liquid ejection head being so constructed as to eject liquid from the ejection port by applying a voltage between the pair of electrodes and causing the piezoelectric body to expand and contract, the method comprising:

• bonding a wiring substrate having a connection terminal to be electrically connected to the electrode provided on the wall of the pressure chamber, wiring extending from the connection terminal and a through hole representing a cross-sectional area smaller than the cross-sectional area of the opening and formed at a position corresponding to the opening to a bonding surface of the liquid ejection head arranged at the side of the opening by means of an adhesive film;
• and
• electrically connecting the connection terminal of the wiring substrate and the electrode provided on the wall of the pressure chamber of the liquid ejection head.