Ink jet device with ink deaerator
AssigneesHeidelberger Druckmaschinen AG, Spectra, Inc.
InventorsSandra Graveson, Alan Menard
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Abstract
An ink jet device includes an ink jet print head and a deaerator having an ink passage, a membrane and a vacuum chamber. The ink passage has an exit connected to the ink jet print head and an inlet, and the membrane has a first side and a second side. The first side contacts ink in the ink passage and the second side contacts the vacuum chamber. The inlet of the ink passage is located above the exit.
Claims11
An ink jet device comprising:
- an ink jet print head;
- and
- a deaerator having an ink passage, a membrane and a vacuum chamber, the ink passage having an exit connected to the ink jet print head and an inlet, the membrane having a first side and a second side, the first side contacting ink in the ink passage and the second side contacting the vacuum chamber, the inlet of the ink passage being located above the exit.
A method for deaerating ink in an ink passage of an ink jet device, the ink passage having an exit connected to an ink jet print head and an inlet, the method comprising:
- adjusting the height of the inlet with respect to the exit so as to permit air bubbles in the ink passage to rise through the inlet.
Dependencies are inferred from the claim text.