Patent ID: 8851645

Claim:
A liquid container containing liquid to be supplied to a body of an image forming apparatus, the liquid container comprising: a liquid supply port part having a liquid supply port to supply the contained liquid to the outside; and a cap member mounted on the liquid supply port part, wherein the cap member has a sealing part that seals the liquid supply port of the liquid supply port part and a holding part that holds an information storage device that stores information concerning the liquid, the sealing part and the holding part are separably connected together, when the cap member is mounted on the liquid supply port part in a state of the sealing part and the holding part being connected together, the holding part is immovably fixed to the liquid supply port part via the sealing part, when the sealing part has been separated from the holding part, the holding part comes to be able to move with respect to the liquid supply port part, the holding part includes an opening, and when the sealing part is separated from the holding part while the holding part remains in a state of being mounted in the liquid supply port part, said opening of the holding part is opened to the liquid supply port part, and when the holding part is in the state of being mounted in the liquid supply port part while the opening of the holding part is opened to the liquid supply port part, the holding part becomes movable with respect to the liquid supply port part.