PROBLEM TO BE SOLVED: To suitably change an ability such as incision according to a travel speed of an injection port in a liquid injection device.SOLUTION: A liquid injection device comprises: a liquid injection mechanism comprising a liquid chamber and an air bubble generating unit that is provided in the liquid chamber and generates air bubbles and a control unit that changes a drive signal that drives the air bubble generating unit according to a travel speed of the liquid injection mechanism.COPYRIGHT: (C)2015,JPO&INPIT【課題】液体噴射装置において、噴射口の移動速度に応じた切開等の能力の変更を好適に行うこと。【解決手段】液体室と、前記液体室内に設けられ気泡を発生させる気泡発生部と、を具備する液体噴射機構と、前記液体噴射機構の移動速度に応じて、前記気泡発生部を駆動する駆動信号を変更する制御部と、を備える。【選択図】図5
