Abstract: In an arrangement to supply ink to a print head unit having a print head, an input, and an output, a back-pressure tank having ink is provided and connected with the input of the print head unit. A degassing unit for ink and having an input and an output is also provided. A first selector valve is connected to the degassing unit input, the first selector valve in a first position establishing a connection of the degassing unit with the output of the print head unit. A second selector valve is connected to the degassing unit output, the second selector valve in a first position establishing a connection of the degassing unit with the back-pressure tank.

Abstract: In an arrangement to supply ink to a print head unit having a print head, an input, and an output, a back-pressure tank having ink is provided and connected with the input of the print head unit. A degassing unit for ink and having an input and an output is also provided. A first selector valve is connected to the degassing unit input, the first selector valve in a first position establishing a connection of the degassing unit with the output of the print head unit. A second selector valve is connected to the degassing unit output, the second selector valve in a first position establishing a connection of the degassing unit with the back-pressure tank.

Abstract: In an inkjet printer at least one print head is provided via which ink droplets are ejected onto a recording material. An intermediate ink container supplies ink for the print head. A pumping device pumps ink which is then supplied into the intermediate ink container at an ink inlet from the pumping device. At least one current director is arranged at a distance from a floor within a region of the intermediate ink container and is angled such that ink flowing out of the ink inlet from the pumping device flows in a radial direction at an angle of inclination and is deflected by the floor or a container wall of the ink container such that an ink current is generated via which a stirring of the ink occurs.

Abstract: In an inkjet printer at least one print head is provided via which ink droplets are ejected onto a recording material. An intermediate ink container supplies ink for the print head. A pumping device pumps ink which is then supplied into the intermediate ink container at an ink inlet from pumping. At least one current director is arranged at a distance from a floor within a region of the intermediate ink container and is angled such that ink flowing out of the ink inlet from pumping flows in a radial direction at an angle of inclination and is deflected by the floor or a container wall of the ink container such that an ink current is generated via which a stirring of the ink occurs.