Patent ID: 7967427

Claim:
A liquid container for containing a liquid, which is detachably mountable on a liquid ejection apparatus, the liquid container comprising: a first member, a second member attached with the first member, a surface parallel to an insertion direction into the liquid ejection apparatus; and a plurality of conformity identification protrusions integrally formed at the surface to be in parallel to the insertion direction for preventing erroneous insertion of the liquid container to a container mounting portion due to a difference in shape of the conformity identification protrusions, wherein the conformity identification protrusions include a first part corresponding to a capacity of the liquid and a second part corresponding to a kind of the liquid, the first part is provided on the first member, the second part is provided on the second member, each of the conformity identification protrusions in the first part is provided at a position varied with the capacity of the liquid, and each of the conformity identification protrusions in the second part has a different length from a contact portion located at one end in the insertion direction to a reference surface located at the other end in the insertion direction.