Ink-jet head and its manufacture method, ink-jet printer and method for manufacturing actuator unit

摘要

A method for manufacturing an ink-jet head comprises: a step of forming a mark (55) for indicating the positions of pressure chambers (10) on a surface of a passage unit (4); a step of preparing a member containing a piezoelectric sheet (41-44) on which a common electrode (34) is supported; a step of fixing the member to the surface of the passage unit; and a step of forming individual electrodes (35), based on the mark, on a face of the member facing the direction opposite to the fixed face thereof to the passage unit.