Patent ID: 7669992

Claim:
A liquid container capable of being detachably mounted on an inkjet recording apparatus comprising: a liquid storage chamber configured to store recording liquid containing pigment; an air introduction unit disposed at a bottom of the liquid storage chamber in a state in which the liquid container is used; and a liquid supply unit disposed at the bottom adjacent to a side of the liquid storage chamber, the side not having the maximum area, and configured to let liquid flow into and out of the liquid storage chamber; a semicircular member disposed at the bottom between the side and the liquid supply unit, a cross section of the semicircular member, being cut by a face orthogonal to a vertical direction in a state in which the liquid container is used, having the liquid supply unit as the center and being open to the liquid supply unit; a step configured to expand the side at a position higher than the semicircular member, in a state in which the liquid container is used, outside of the liquid container, compared to the side at a position lower than the semicircular member; and a rib configured to connect a face having a maximum area of the liquid container and its opposite side, extending obliquely upward to the side in a state in which the liquid container is used, and extending from the central area of the liquid container to the front of the liquid supply unit in a horizontal direction, wherein liquid in the liquid storage chamber is stirred by flowing in and out of liquid from the liquid supply unit.