Tintenkassette für einen Tintenstrahldrucker

摘要

It is described an ink cartridge for an ink jet recording apparatus such as an ink jet printer that is provided with a container (1) having at least a first wall (1a). An ink supply port (2) is formed through the first wall (1a) for supplying ink to the exterior of the container (1). An ink chamber (4) and an ink supply chamber (5) are formed by a membrane valve seat (3) made of an elastic thin membrane and formed with a through hole (6) therethrough. A valve body (8) is positioned opposing the through hole (6) formed in the membrane valve seat (3), the valve body (8) and membrane valve seat (3) adjacent said through hole (6) formed therein being maintained selectively in contact by a pressure difference between said ink chamber (4) and said ink supply chamber (5).