Patent ID: 6979079

Claim:
An ink cartridge that, when used, is mounted on a recording apparatus having a pressing member and a receiving part, said ink cartridge comprising: an ink container having an upper wall, a bottom wall, a first side wall intersecting the bottom wall and a second side wall intersecting the bottom wall and facing the first side wall; an ink supply port disposed on the bottom wall at an offset position closer to the first side wall than to the second side wall; a first projecting portion disposed on the second side wall and located closer to the bottom wall than to the upper wall, the first projecting portion having a plurality of side portions for being restricted in position when the ink cartridge is mounted on the recording apparatus; a pressed portion disposed on the second side wall, the pressed portion having an upper surface for being pressed by the pressing member of the recording apparatus; a retaining member engageable with the receiving part of the recording apparatus when the ink cartridge is mounted on the recording apparatus; and a plurality of electrodes disposed on the first projecting portion, and electrically connected to a memory unit disposed on the ink container.