| 摘要 |
A liquid container is provided which can prevent a leakage of liquid from an air introduction portion under any environment of use and storage and which can maintain a stable negative pressure characteristic irrespective of a degree of liquid consumption. The liquid container includes a liquid containing portion, a liquid supply portion to supply liquid from the liquid containing portion to a liquid using portion, a valve chamber having a one-way valve which permits a gas introduction into the liquid containing portion and prevents the liquid and gas from getting out of the liquid containing portion, a communication path to communicate the liquid containing portion with the valve chamber, a mechanism having a function of maintaining a volume of the liquid containing space, and a communication path closing member capable of enabling or disabling a communication between the liquid containing portion and the valve chamber through the communication path.
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