Patent ID: 7163280

Claim:
An ink-jet head comprising: a flow path unit in which plural pressure chambers communicating with nozzles are arranged along a plane; an actuator unit which includes plural individual electrodes arranged at positions opposite to the pressure chambers, is fixed to one surface of the flow path unit and changes volumes of the pressure chambers; a flexible printed circuit in which plural signal lines for supplying drive signals to change volumes of the pressure chambers to the individual electrodes are formed as a conductive pattern and the respective signal lines are electrically connected to the corresponding individual electrodes; an adhesive applied to an area not covered with the actuator unit on the one surface of the flow path unit and fixes the flexible printed circuit to the flow path unit; and a stepped part formed between the actuator unit and the adhesive on the one surface of the flow path unit so that movement of the adhesive in a direction of approaching the actuator unit is blocked.