| 摘要 |
[PROBLEMS] A liquid discharge method and device, where a turbulent flow and air bubbles are less likely to occur, where liquid does not unintentionally flow from a suction port to a discharge port, where debris is not produced, where device damage is less likely to occur, and that can perform excellent discharge. [MEANS FOR SOLVING PROBLEMS] A liquid discharge method performs liquid discharge by reciprocating a plunger in a cylinder while switching, by moving a switching valve (10) in a valve chamber (30), between a path to a cylinder (13), the valve chamber, and a liquid storage container (28) and a path to the cylinder, the valve chamber, and a discharge opening (17). Retreat of a plunger (14) opens the path to the cylinder, the valve chamber, and the liquid storage container, and advancement of the plunger opens the path to the cylinder, the valve chamber, and the discharge opening and closes an on-off valve (26). |
