Patent ID: 7175244

Claim:
A liquid container, comprising: a housing containing therein liquid; a liquid supply opening formed in said housing for withdrawing the liquid from said housing; a liquid sensor mounted on said housing for detecting a level of the liquid which is variable in accordance with a consumption of the liquid, wherein said liquid sensor utilizes vibration phenomena to detect the level of liquid; and a first partition wall extending in an interior of said housing and defining the interior of said housing into at least two liquid accommodating chambers which communicate with each other, said liquid accommodating chambers comprising: an air-communication side liquid accommodating chamber which communicates with ambient air; and a detection side liquid accommodating chamber in which said liquid sensor is disposed at an upper portion thereof; and wherein said detection side liquid accommodating chamber communicates with said air-communication side liquid accommodating chamber only through a bottom portion of said first partition wall and communicates with said ambient air via said air-communication side liquid accommodating chamber.