Patent attributes
To position a storage medium simply/reliably. An ink bag unit is structured so as to be attachable to and detachable from a tray. When ink runs out, a new ink bag unit can be used by being mounted on the tray. An adapter portion holds a storage device that stores data regarding the ink. The adapter portion is inserted into an adapter insertion portion of the tray, whereby a position of the storage device in the ink cartridge is definitely determined. As described above, with regard to the ink cartridge, the tray can be used as a piece of equipment of a printing apparatus over and over again, and the ink bag unit can be distributed as a consumable article. Further, because the storage device is mounted to the adapter portion, connection between the printing apparatus and the storage device can be achieved reliably and easily when the ink cartridge is mounted to the printing apparatus.
