Liquid storage unit, liquid supply unit, and liquid ejection device

Abstract

A liquid storage unit configured to store a liquid includes: an injection port through which to inject the liquid; a cover part configured to open and close the injection port; an outflow port through which to allow the liquid in the liquid storage unit to flow out; a float valve changing in position according to a remaining amount of the liquid in the liquid storage unit, the float valve being configured to close the outflow port when the remaining amount of the liquid is in an end state; and a coupling part having a length in a vertical direction and configured to couple the cover part and the float valve, wherein the float valve moves from a closing position for closing the outflow port to an opening position for opening the outflow port, as the cover part moves from a closed position to an open position.

Dependencies are inferred from the claim text.