Patent attributes
An ink cartridge and an ink cartridge holder maintain the relative position between the information reading section of the ink cartridge holder and the information storing unit of the ink cartridge, which should be aligned accurately, even if the ink cartridge has instability to the ink cartridge holder due to variation in each product. The ink cartridge which supplies ink to a recording apparatus includes: a substantially rectangular parallelepiped ink cartridge main body holding ink; a connection electrode section provided on part of a first side of the ink cartridge main body and including a connection terminal; an ink supply unit provided in a front surface intersecting the first wall; and a positioning section guiding a positioning member of the recording apparatus to the vicinity of the connection electrode on the front surface so that the positioning member opposes the connection electrode section in the direction parallel with the connection electrode section.
