Apparatus for continuous ink jet printing, comprising: an ink system comprising an ink storage tank (15) operable to supply ink to a print head associated with the apparatus; a single cartridge connection (9) for releasable engagement with a fluid cartridge (8), the cartridge connection (9) comprising: a fluid connector (10) for engaging an outlet of a fluid cartridge; and a conduit configured to allow fluid to flow along a fluid pathway from a cartridge engaged with the cartridge connection, via the fluid connector, to the ink storage tank. The apparatus has a first configuration in which a solvent cartridge is engaged with the cartridge connection and in which the apparatus is configured to receive solvent from the engaged solvent cartridge, and a second configuration in which an ink cartridge is engaged with the cartridge connection and in which the apparatus is configured to receive ink from the engaged ink cartridge.

A method for controlling an inkjet recording device includes providing a print head and providing a main body. The method also includes controlling, when the print head is set in the head cleaning unit, the supply of the ink to the nozzle and the recovery of the discharged ink from the gutter, wherein the gutter is located between the nozzle and recovery container. The method also includes providing a plurality of ink circulation path. The method also includes connecting, a pump to the circulation paths, and circulating, using the pump, the ink in a state where the print head is set in the head cleaning unit.

A method for controlling an inkjet recording device includes providing a print head and providing a main body. The method also includes controlling, when the print head is set in the head cleaning unit, the supply of the ink to the nozzle and the recovery of the discharged ink from the gutter, wherein the gutter is located between the nozzle and recovery container. The method also includes providing a plurality of ink circulation path. The method also includes connecting, a pump to the circulation paths, and circulating, using the pump, the ink in a state where the print head is set in the head cleaning unit.