Patent ID: 8544995

Claim:
An ink cartridge comprising: an ink bag comprising two layers of flexible sheets disposed to face each other to form an ink storage portion configured to store ink inside; a spout that is provided on the ink bag and that includes a hollow portion that leads from a first opening to a second opening, wherein the first opening is communicatively connected with the ink storage portion, and the second opening is provided in a leading end portion of the spout and is open to an outside of the ink bag; and a case that houses the ink bag, wherein a longitudinal direction of the case is an axial direction of the spout provided on the ink bag, the case comprising: an end portion on a side of the second opening of the spout, the end portion comprising: a first corner portion, and a second corner portion, wherein the first corner portion is a corner portion that, in the axial direction, is located on a side of the first opening with respect to the leading end portion of the spout, and wherein the second corner portion is a corner portion that, in the axial direction, is located on a side opposite to the first opening with respect to the leading end portion of the spout; wherein: a width in a first direction is smaller than a width in a second direction in the case, wherein: the first direction is a direction that is orthogonal to an extending direction of a line connecting the first corner portion and the second corner portion and to the axial direction, and the second direction is a direction that is orthogonal to the first direction and to the axial direction, an axial line of the spout is, in the second direction, located closer to one end portion of the case on a side having the first corner portion, and the leading end portion of the spout is located inside of the case with respect to the line connecting the first corner portion and the second corner portion, and wherein: at least one of a first distance is less than a second distance and a third distance is less than a fourth distance is satisfied, the first distance being a distance between the first opening and a first edge located on a side of the one end portion in the second direction, of the end portion, the second distance being a distance between the first opening and a second edge located, on a side opposite to the one end portion with respect to the axial direction in the second direction, of the end portion, the third distance being a distance between the second opening and the first edge, and the fourth distance being a distance between the second opening and the second edge.