Ink jet apparatus and ink jet cartridge and ink container mountable thereto.

摘要

An ink jet head cartridge includes a recording head (1) for ejecting ink; an ink container (13) for containing the ink to be supplied to the recording head (1); an air venting opening for communication between the container (13) and ambience to allow supply of the ink from the container to the recording head; wherein the air venting opening is constituted by an outside opening (13g) and an inside opening (13f) and a passage (13e) connecting them, the passage has a length larger than a thickness of the ink container. <IMAGE>