Abstract: The present invention relates to an inkjet print head comprising an ink handling system comprising an ink entry port arranged to supply ink at a central position with reference to the length of the nozzle array, in particular at a position halfway the length of the nozzle array. The ink handling system further comprises two ink return ports, each arranged at each opposite end of the nozzle array for decentralized ink return. The ink handling system is configured such that in operation ink is circulated through the ink handling system such that the ink flows from the ink entry port to both ink return ports in opposite directions in heat exchanging contact with the droplet forming device. In another aspect, the invention relates to a printer comprising at least one print head according to the present invention.

Abstract: A print head unit comprises a print head for ejecting droplets of a marking material; an electronic print head controller; and a coupling assembly for mechanically coupling the print head and the print head controller; wherein the coupling assembly provides a first coupling state and a second coupling state, wherein in the first coupling state, the print head and the print head controller are fixed relative to each other; in the second coupling state, the print head and the print head controller are enabled to move relative to each other within a limited range. The print head unit can be easily handled in the first coupling state, while in the second coupling state the print head may be mounted in a moving carriage without the print head controller affecting the position and rotation of the print head.

Abstract: A print head unit comprises a print head for ejecting droplets of a marking material; an electronic print head controller; and a coupling assembly for mechanically coupling the print head and the print head controller; wherein the coupling assembly provides a first coupling state and a second coupling state, wherein in the first coupling state, the print head and the print head controller are fixed relative to each other; in the second coupling state, the print head and the print head controller are enabled to move relative to each other within a limited range. The print head unit can be easily handled in the first coupling state, while in the second coupling state the print head may be mounted in a moving carriage without the print head controller affecting the position and rotation of the print head.