Patent ID: 8651642

Claim:
An ink cartridge for an inkjet printer, the ink cartridge comprising: a bottom face and a front face; interfaces on the front face of the ink cartridge for connection to a cartridge receiving structure, the interfaces including an ink interface; a guide interface in the bottom face for guiding the cartridge along a straight line for connecting the interfaces; and a latch stop and a latch track disposed in the bottom face of the ink cartridge to guide and retain, respectively, a latch of the cartridge receiving structure; wherein the latch track comprises a locking track and an unlocking track to accommodate movement of the latch with respect to the latch stop, the locking track being at least partly separate from the unlocking track, the movement of the latch being along the locking track into a locked engagement position at insertion, and along the unlocking track into an unlocked position at ejection; wherein the guide interface comprises a guide track that extends parallel to said straight line; wherein the guide track and the latch track are formed by one integral cut out in the bottom face of the ink cartridge.