Ink supply device for use in ink jet printer and ink tank for us

Details Ink supply device for use in ink jet printer and ink tank for us Ink supply device for use in ink jet printer and ink tank for us

1995-11-07

2000-01-04

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

141351, 2511491, B41J 2175

Patent

active

060102136

ABSTRACT:
An ink supply device includes an ink container connected to an air communication port through a porous member. The ink container is maintained at a negative pressure equivalent to the capillary force of the ink penetrated into the porous member. Since the ink container is in communication with the air through a wide area of the porous member, the ink container can be maintained at a constant negative pressure regardless of the quantity of ink consumed by the recording head.

REFERENCES:
patent: 4509062 (1985-04-01), Low et al.
patent: 4771295 (1988-09-01), Baker et al.
patent: 4794409 (1988-12-01), Cowger et al.
patent: 5025271 (1991-06-01), Baker et al.
patent: 5116021 (1992-05-01), Faust et al.
patent: 5182581 (1993-01-01), Kashimura et al.
patent: 5280300 (1994-01-01), Fong et al.
patent: 5426459 (1995-06-01), Kaplinsky
patent: 5509140 (1996-04-01), Koitabashi et al.
Webster's II New Riverside University Dictionary, p. 1227, 1994.

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