Patent ID: 9204890
Filing Date: 2015-12-08
Classification: A61B

Abstract:
1. A fluid ejection device comprising: a fluid ejection unit that ejects a fluid; an ejection control unit that controls the ejection of the fluid from the fluid ejection unit; a fluid container that accommodates the fluid to be supplied to the fluid ejection unit; and a pressure adjustment unit that adjusts an inner pressure of the fluid container in such a manner that the inner pressure of the fluid container gets closer to a target pressure than a first threshold value for the inner pressure of the fluid container, wherein the ejection control unit has a first ejection mode and a second ejection mode as ejection modes, and in the first ejection mode, when the inner pressure of the fluid container is closer to the target pressure than a second threshold value separated from the target pressure further than the first threshold value, the ejection control unit receives a demand for the ejection of the fluid, and in the second ejection mode, even when the inner pressure of the fluid container is not closer to the target pressure than the second threshold value, the ejection control unit receives a demand for the ejection of the fluid.