A method used in some inkjet systems to transfer ink from the primary reservoir to the print head. This feeding mechanism uses the natural attraction of the ink for the tubing to keep a constant ink flow. Other systems use a pump to achieve the same results. Continuous flow systems offered for Epson, Canon and HP inkjet printers by 123 Refills rely on capillary action of ink in the tubing.

See also:

Continuous Ink System