| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid ejection head which can effectively prevent deviation of landing positions of flying droplets caused by an air flow, a turbulent flow and the like, and to provide a liquid ejection head unit and a liquid ejector.SOLUTION: The inkjet recording head 10 discharges liquid droplets to a relatively moving recording sheet S via a nozzle opening 13 formed in a nozzle plate 14 under pressure generated in a pressure generation chamber 11 filled with the liquid. The nozzle plate 14 is constituted to be deformed in shape in conjunction with discharging of the liquid droplets. The inkjet recording head has an air chamber 51 which has one opening blocked by the nozzle plate 14 and another opening blocked by a lid member 52 to form a space filled with the air, an air nozzle opening 53 which is formed in the lid member 52 at a position concentric with the central axis L of the nozzle opening 13 with respect to a discharge direction of the liquid droplets and is larger in diameter than the nozzle opening 13, and an air ejection mechanism 50 constituted to discharge the air of the air chamber 51 together with the liquid droplets via the air nozzle opening 53 in conjunction with deformation of the nozzle plate 13. |
