Air removal means for ink jet printers

Details Air removal means for ink jet printers Air removal means for ink jet printers

1997-06-30

1998-09-15

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 219

Patent

active

058086439

ABSTRACT:
A method and apparatus for removing dissolved air in ink and air bubbles or air pockets from ink passageways in ink jet printer cartridges by use of a permeable membrane tubing member positioned in the ink at a location adjacent the ink inlet of the printer's droplet ejecting printhead. The permeable membrane tubing member is connected to a vacuum source to diffuse air into the vacuum in the tubing member interior. The vacuum source may be by a direct connection to the printer's vacuum priming pump at its maintenance station, a separate vacuum pump, or a vacuum accumulator.

REFERENCES:
patent: 4774530 (1988-09-01), Hawkins
patent: 4788556 (1988-11-01), Hoisington et al.
patent: 5339102 (1994-08-01), Carlotta
patent: 5404158 (1995-04-01), Carlotta et al.
patent: 5519425 (1996-05-01), Dietl et al.

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