Method and apparatus for supplying ink to an ink jet printer

Details Method and apparatus for supplying ink to an ink jet printer Method and apparatus for supplying ink to an ink jet printer

1990-12-27

1993-08-03

Fuller, Benjamin R.

Recorders

Markers and/or driving means therefor

With ink supply to marker

G01D 1518

Patent

active

052333698

ABSTRACT:
An ink cartridge for an ink jet printer that supplies ink at a negative pressure is disclosed. The cartridge includes a cartridge housing having an upper chamber and a lower chamber and a first wall therebetween. The upper chamber has an aperture exposed to atmosphere and it also contains a capillary foam having a specifiable capillarity for absorbing ink. The lower chamber is airlocked until the ink level in the upper chamber is sufficiently low to allow the passage of air through the pores. A printhead is disposed at a vertical height greater than a top level of the lower chamber. A supply line is provided which conveys ink by capillary action of the nozzles to the printhead. A second capillary foam has a specifiable capillarity greater than the capillarity of the first capillary foam. The second foam is in fluidic communication with the upper and lower chambers and with the supply line.

REFERENCES:
patent: 4095237 (1978-06-01), Amberntsson et al.
patent: 4419678 (1983-12-01), Kasugayama et al.
patent: 4571599 (1986-02-01), Rezanka
patent: 4714937 (1987-12-01), Kaplinsky
patent: 4771295 (1988-09-01), Baker et al.
patent: 4791438 (1988-12-01), Hanson et al.
patent: 4794409 (1988-12-01), Cowger et al.
patent: 4929969 (1990-05-01), Morris
patent: 4931811 (1990-06-01), Cowger et al.

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