Patent ID: 8287110

Claim:
A liquid container configured to be mounted on a liquid ejecting apparatus when being used, the liquid container comprising: a plurality of outer surfaces; a liquid supply section that is connected to the liquid ejecting apparatus when the liquid container is mounted on the liquid ejecting apparatus; a liquid storage chamber that is disposed on the upstream side of the liquid supply section and stores liquid; an atmosphere introducing section that is disposed in the liquid storage chamber, and introduces atmosphere into the liquid storage chamber from the outside through an atmosphere opening port as the liquid stored in the liquid storage chamber is consumed; and a case where at least a part of the atmosphere introducing section, at least a part of liquid storage chamber, and the liquid supply section are formed; wherein the atmosphere opening port is exposed to a first outer surface that has the largest area among the plurality of outer surfaces, and wherein the atmosphere introducing section includes a first flow passage that is formed in the shape of a groove on the side of the case facing the first outer surface, a second flow passage that is formed in the shape of a groove on the side of the case facing a second outer surface opposite to the first outer surface, and first and second communication passages that pass through the case from the first outer surface toward the second outer surface, one end of the first communication passage being connected to the atmosphere opening port and the other end thereof being connected to the second flow passage, one end of the second communication passage being connected to the first flow passage and the other end thereof being connected to the second flow passage, and an opening of the first flow passage facing the first outer surface being sealed by a first film and an opening of the second flow passage facing the second outer surface being sealed by a second film.