(includes technical specifications)
Dissolved gas and micro bubbles in ink can significantly affect the speed and quality of printing. By interrupting droplet formation or pressurization at the ink head, dissolved gases can lead to improper jetting at the time of ink ejection. This can lead to poor image quality, and nozzle dropouts which can cause expensive shutdown of the equipment, and the need for more frequent cleaning.
Degassing ink with a membrane either during the reservoir fill cycle or prior to it reaching the print head is a simple process. The ink flows on one side of the membrane, while a vacuum is drawn on the other side. Gases dissolved in the ink readily transfer through the membrane to the vacuum side, leaving the ink degassed when it reached the outlet.