| 摘要 |
A liquid container includes: a liquid containing portion that is pressurized by a pressure unit and discharges a liquid stored therein through a liquid discharge port; a liquid supply port that supplies the liquid to an external liquid consuming apparatus; and a liquid detection unit that is interposed between the liquid containing portion and the liquid supply port, wherein the liquid detection unit includes: a liquid detection chamber that has a liquid inlet port to be connected to the liquid discharge port of the liquid containing portion and a liquid outlet port to be connected to the liquid supply port; a movable member that is movably accommodated in response to a liquid containing amount of the liquid detection chamber; a recess portion that partitions a detection space in cooperation with one surface of the movable member when the liquid containing amount of the liquid detection chamber becomes a predetermined amount or lesser; and a piezoelectric detection unit that applies vibration to the recess portion and detects a free vibration state according to the applied vibration, and wherein the movable member is provided with two flow passages that connect the detection space partitioned through the cooperation of the recess portion to the liquid detection chamber. |
