PROBLEM TO BE SOLVED: To reduce a period of time until fluid is injected at inexpensive costs.SOLUTION: A fluid injection device comprises: a fluid injection section causing fluid to be injected an injection control section controlling injection of the fluid from the fluid injection section a fluid container storing the fluid supplied to the fluid injection section a connection flow passage connecting the fluid injection section and the fluid container and becoming a flow passage where the fluid flows an open/close section opening and closing the connection flow passage and a volume change section changing a volume in the fluid container while causing the open/close section to perform opening and closing of the connection flow passage. The fluid injection device includes: a first injection mode where the injection control section causes the fluid to be injected from the fluid injection section while the volume change section is reducing the volume in a state of the connection flow passage being opened by the open/close section and the volume change section causes the open/close section to close the connection flow passage subsequent to the injection of the fluid and a second injection mode where the injection control section permits the injection of the fluid from the injection control section while the volume change section is causing the open/close section to open the connection flow passage subsequent to the first injection mode.COPYRIGHT: (C)2016,JPO&INPIT【課題】安価に流体を噴射させるまでの時間を短縮すること。【解決手段】本発明の液体噴射装置は、流体を噴射させる流体噴射部と、前記流体噴射部からの流体の噴射を制御する噴射制御部と、前記流体噴射部に供給される前記流体を収容する流体容器と、前記流体噴射部および前記流体容器を接続し前記流体が流れる流路となる接続流路と、前記接続流路を開閉させる開閉部と、前記開閉部に前記接続流路の開閉を行わせるとともに前記流体容器内の容積を変更させる容積変更部と、を備え、前記容積変更部が前記開閉部に前記接続流路を開かせた状態で前記容積を減少させるとともに前記噴射制御部が前記流体噴射部から流体を噴射させ、当該流体の噴射後に前記容積変更部が前記開閉部に前記接続流路を閉じさせる第1噴射モードと、前記第1噴射モードの後に、前記容積変更部が前記開閉部に前記接続流路を開かせるとともに前記噴射制御部が前記噴射制御部からの流体の噴射を許可する第2噴射モードと、を有する。【選択図】図7
