Ink tank cartridge and ink-jet apparatus in which the ink tank cartridge is installed

摘要

An ink-tank cartridge has a first storage chamber (53) housing a negative pressure generating member (52) and having an atmosphere communicating portion communicated with the atmosphere, a second storage chamber (56) in substantially enclosed condition and communicated with the first storage chamber (53) only through a fine communicating portion located remote from said atmosphere communicating portion (57), and directly storing an ink to be supplied to the first storage chamber (53), the second storage chamber (56) being arranged adjacent the first storage chamber (53); and an enclosed ink storage portion (9) only communicated with the second storage chamber (56) and located at respective side surfaces of the first and second storage chambers (53, 56). The bottom surface of the enclosed ink storage portion (9) is located at higher position than the bottom surface of the first and second storage chambers (53, 56).