Ink jet printer head suitable for printing of FPD substrates

A nozzle plate in the present invention is, sub-cell 22 that a plurality of nozzles 10 in a single bundle are spaced apart a predetermined interval arranged plurality of two-dimensionally relates to an inkjet printhead suitable for the large-scale FPD substrate printing ( 20); An actuator (90) for vibration by an electric power; Is provided between the nozzle plate 20 and the actuator 90 inside is divided into a plurality of sub-cell area 32 corresponding to the sub-cells 22, each sub-cell area 32 is to be fed the ink from the external an ink chamber to be installed (30); The nozzle plate by the vibration of the ink to the diaphragm 40 by an actuator 90 in provided with a, sub-cell area 32 (; and the actuator 90 and the ink chamber 30, the diaphragm 40 is provided between the characterized in that the discharge at 20). The ink-jet printer head, a sub-cell, an actuator, a nozzle plate, an ink chamber