Patent ID: 8057026

Claim:
A liquid container adapted to be detachably mounted on a liquid ejection apparatus, comprising: a surface having an opening configured to receive a liquid introducing member which is provided in the liquid ejection apparatus for introducing liquid into the liquid container; a container case including a case main body portion and a lid case fitted to each other so that an edge portion of the case main body and an edge of the lid case are in contact with each other so as to define a boundary therebetween forms a first part of the surface and the lid case forms a second part of the surface; a circuit board attached on a side opposite to a position where a waste liquid collecting port is provided; a liquid containing portion located in the container case and storing liquid therein; a liquid leading member provided with the liquid containing portion and configured to lead out the liquid stored in the liquid containing portion; a support portion provided on the surface and projected from the surface, the support portion supporting the liquid leading member, at least a part of the support portion provided on the boundary; and a plurality of space portions opened at the surface, at least a part of each of the space portions provided on the boundary wherein a part of each of the space portions includes a boundary between the first part of the surface and the second part of the surface.