Ink cartridges and ink supply systems

Abstract

The invention relates to ink cartridges and ink supply systems comprising such cartridges. The ink cartridge according to the invention comprises a container with a reservoir for the ink and a dispensing mechanism for the ink; The opening / closing mechanism includes a closing part that closes the opening and closing mechanism, and a locking part that moves relative to the closing part to close between the first and second positions. The opening / closing mechanism rotates relative to the housing between the open position to make the closing part open the opening and the closed position to make the closing part close the opening. The locking part is configured to receive force to move the opening / closing mechanism relative to the housing. And in that case, the locking part is in the most favorable position when the opening / closing mechanism is in the closed position, and the locking part is in the second most favorable position when the opening / closing mechanism is in the open position.