Patent ID: 7891093
Filing Date: 2011-02-22
Classification: B41J,Y10T

Abstract:
1. A method for manufacturing an inkjet head, comprising: producing a channel unit including a plurality of pressure chambers communicating with nozzles respectively and arrayed in a plane, and ink channels extending from ink inlets to the nozzles through the pressure chambers respectively, the pressure chambers having openings in one surface of the channel unit parallel to the plane; producing an actuator unit including individual electrodes having planar shapes not larger than planar regions of the pressure chambers respectively, a common electrode formed over the individual electrodes, and a piezoelectric sheet put between the common electrode and a plurality of the individual electrodes; bonding the actuator unit to the one surface of the channel unit while aligning the individual electrodes such that the individual electrodes are included in the planar regions of the pressure chambers respectively in plan view; increasing internal pressure in each of the pressure chambers; and pressing a flexible cable against the actuator unit with increased internal pressure in each of the pressure chambers so as to connect terminals of the flexible cable to the individual electrodes of the actuator unit respectively, the flexible cable serving to supply driving signals to the actuator unit.