PROBLEM TO BE SOLVED: To realize a control method for a fluid injection device capable of switching between pulse flow injection and continuous flow injection.SOLUTION: The control method is for a fluid injection device comprising a fluid chamber, a volume changing means for changing the volume of the fluid chamber, a pulse flow generating part for injecting a fluid from a fluid injection opening part as a pulse flow or a continuous flow, a fluid supplying means for supplying a fluid to the pulse flow generating part by a predetermined pressure, and an injection command switching means for switching selectively between the pulse flow injection and the continuous flow injection. The injection command switching means selectively switches between the pulse flow injection of driving the volume changing means for converting a fluid into a pulse flow so as to be injected intermittently, and the continuous flow injection of stopping the volume changing means for making higher the fluid supply pressure from the fluid supplying means than in the case of the pulse flow injection for injecting the fluid as a continuous flow.COPYRIGHT: (C)2011,JPO&INPIT【課題】パルス流噴射と連続流噴射とを切替え可能な流体噴射装置の制御方法を実現する。【解決手段】流体噴射装置の制御方法は、流体室と前記流体室の容積を変更する容積変更手段とを有し、流体噴射開口部から流体をパルス流または連続流として噴射させる脈流発生部と、前記脈流発生部に所定の圧力で流体を供給する流体供給手段と、パルス流噴射と連続流噴射とを選択的に切り替える噴射指令切替え手段と、が備えられる流体噴射装置の制御方法であって、前記容積変更手段を駆動し流体を脈流に変換してパルス状に噴射させるパルス流噴射と、前記容積変更手段を停止し、パルス流噴射の場合よりも前記流体供給手段からの流体供給圧力を高めて流体を連続流として噴射させる連続流噴射と、に前記噴射指令切替え手段により選択的に切替える。【選択図】図5
