Patent ID: 8529032

Claim:
A liquid ink printer comprising: an ink storage tank having a plurality of holes around a circumference of the ink storage tank, the ink storage tank tapering towards a bottom of the ink storage tank; a plurality of tubes, each tube having a first end fluidically connected to a corresponding hole of the holes around the circumference of the ink storage tank and having a second end; an ink mover configured to cause a body of ink to move within the ink storage tank so as to create a non-flat curved upper surface of the body of ink and configured to cause the body of ink to rotate about a fixed axis within the ink storage tank without using an impeller, the ink mover comprising a recirculating pump disposed at the bottom of the ink storage tank and fluidically connected to the second ends of the tubes to recirculate the body of ink from the bottom of the ink storage tank back into the ink storage tank through the tubes; and a gas extractor for extracting gas from the ink.