Abstract: A device for controlling a printing temperature of an ink in a print head of a system for inkjet printing includes a heat exchanger with a first channel for ink and a second channel for a temperature control fluid; a chiller for heating and/or cooling the temperature control fluid; an ink circuit that is configured to pump ink through the heat exchanger and into the print head; and a temperature control fluid circuit that is configured to pump the temperature control fluid through the chiller and the heat exchanger. The device is configured to heat and/or cool the temperature control fluid with the chiller such that a temperature of the ink is set within a predetermined temperature range. At least one heating element is provided at the heat exchanger to heat the temperature control fluid and the ink to more rapidly set the ink within the predetermined temperature range.

Abstract: An arrangement for supplying ink to a print bar with small pressure fluctuations may include an ink reservoir and a damping vessel. The print bar may include at least two print heads and is connected with the ink reservoir via a supply line. Each of the print heads is connected with the damping vessel via at least one damping line. The damping vessel is connected with a discharge line. The end of the damping line ends at a first height in the damping vessel. The end of the discharge line ends at a second height above the first height in the damping vessel. The arrangement may supply ink to the print bar with small gas fraction in the ink.

Abstract: An arrangement for supplying ink to a print bar with small pressure fluctuations may include an ink reservoir and a damping vessel. The print bar may include at least two print heads and is connected with the ink reservoir via a supply line. Each of the print heads is connected with the damping vessel via at least one damping line. The damping vessel is connected with a discharge line. The end of the damping line ends at a first height in the damping vessel. The end of the discharge line ends at a second height above the first height in the damping vessel. The arrangement may supply ink to the print bar with small gas fraction in the ink.

Abstract: A cover for covering the nozzle plate of a print head while in a parking position to delay a drying of ink. The cover can clean the nozzle plate while the nozzle plate is covered. A cost-effective and installation space-efficient cleaning of the nozzle plate of a print head is thus enabled.

Abstract: A cover for covering the nozzle plate of a print head while in a parking position to delay a drying of ink. The cover can clean the nozzle plate while the nozzle plate is covered. A cost-effective and installation space-efficient cleaning of the nozzle plate of a print head is thus enabled.