Abstract: An inkjet head (3) comprises a wiring board (80) which. has, two-dimensionally arranged thereon, sets of nozzles (11) , pressure chambers (41) , and actuators (60) and which also has lines of wiring (87, 91) through-vias (85) , and ink flow paths (88); and connection sections (110, 111) which connect the lines of wiring to a drive section, the connection sections (110, 111) being disposed outside the arrangement region (R) in which the sets of the nozzles, the pressure chambers, and the actuators are arranged two-dimensionally. The nozzles are arranged in N rows (N is an integer greater than or equal to 2) , with each of the N rows comprising M nozzles (M is an integer greater than or equal to 2) which are arranged rectilinearly. The through-vias which correspond.

Abstract: An inkjet printhead includes multiple sets each of which includes a nozzle, pressure chamber, and actuator; a circuit board; and a connection member. The circuit board includes a wire, through hole via, and ink channel. The connection member, which connects the wire to a driving unit, is provided outside of an array area where the sets are two-dimensionally arrayed. The number of the nozzle rows is N, and each row includes M nozzles (M and N: integer of 2 or more). The through hole vias corresponding to the nozzles of n nozzle row of the N nozzle rows are provided inside of the array area (n: 1?n<N). The through hole vias corresponding to the nozzles of the N nozzle rows except the n nozzle row are provided outside of the array area.