An ink-jet head is disclosed. The ink-jet head may include: a chamber containing an ink; a reservoir connected with the chamber to supply the ink to the chamber; a restrictor connected with the chamber and the reservoir to control a flow of the ink; a nozzle connected with the chamber to jet the ink, and located at a position corresponding to where a pressure supplied to the chamber is the maximum; and an actuator supplying a pressure to the chamber such that the ink is jetted. The ink-jet may be operated with a lower driving voltage, and the ink may be jetted in a more stable manner.