Abstract: The device for the filling of the ink supply system in an inkjet printer with a nozzle printhead, and ink storage container, and a printhead tank connected to the ink storage container or connectable to the ink storage container disposed on the printhead carriage, furthermore with a cleaning station, wherein the nozzle printhead is sealingly movable to the cleaning station and an exhaust pump connected to the cleaning station, resolves the object of the present invention by having the nozzle printhead with the nozzle inputs placeable at the cleaning station and the nozzle inputs connected to a first nozzle printhead tank part chamber, wherein the first nozzle printhead tank part chamber is separated from a second printhead tank part chamber adjoining to the first printhead tank part chamber.