| 摘要 |
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 (91) which are connected respectively to the actuators, through-vias (85) which are connected respectively to the lines of wiring, and ink flow paths (88) which supply ink respectively to the pressure chambers; and connection sections (110, 111) which connect the lines of wiring to a drive section. 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 to the nozzles in the first row are disposed at positions closer to the connection section than the ink flow paths which correspond to the nozzles in the first row, and the through-vias which correspond to the nozzles in the N-th row are disposed at positions closer to the connection section than the ink flow paths which correspond to the nozzles in the N-th row. The configuration enables the nozzles to be more densely arranged and the reliability of the lines of wiring to be improved. |
