Abstract: A device for supplying liquid ink to an ink print head in an ink printing machine includes an ink reservoir, a line for guiding the ink from the reservoir to the print head, a line for guiding the ink from the print head to the reservoir, and a damper for damping pressure fluctuations in the liquid ink. The damper has a movable and/or deformable membrane with a given thickness. In a position of repose, the membrane has a length L and a width W, and the length L is at least twice as long as the width W. The device renders possible in a simple and cost-efficient way to reliably avoid even large pressure fluctuations, in particular high pressure peaks in the liquid ink.

Abstract: A device for supplying liquid ink to an ink print head in an ink printing machine includes an ink reservoir, a line for guiding the ink from the reservoir to the print head, a line for guiding the ink from the print head to the reservoir, and a damper for damping pressure fluctuations in the liquid ink. The damper has a movable and/or deformable membrane with a given thickness. In a position of repose, the membrane has a length L and a width W, and the length L is at least twice as long as the width W. The device renders possible in a simple and cost-efficient way to reliably avoid even large pressure fluctuations, in particular high pressure peaks in the liquid ink.