Ink container with ring-shaped ink absorbing member

Details Ink container with ring-shaped ink absorbing member Ink container with ring-shaped ink absorbing member

1994-07-22

1996-09-17

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

055573100

ABSTRACT:
An ink jet head cartridge includes a recording head for ejecting ink; an ink container for containing the ink to be supplied to the recording head; an ink supply port for supplying the ink from the container to the head; a porous ink absorbing material disposed in the container and having a ring shape with a central opening; and an engaging portion engaging with the central opening wherein the absorbing material has a higher density proximate to the supply port than proximate to the engaging portion.

REFERENCES:
patent: 4436439 (1984-03-01), Koto
patent: 4630758 (1986-12-01), Mutoh
patent: 4771295 (1988-09-01), Baker et al.
patent: 4794409 (1988-12-01), Cowger et al.
patent: 4931811 (1990-06-01), Cowger et al.
patent: 4967207 (1990-10-01), Reider
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patent: 5027134 (1991-06-01), Harmon et al.
patent: 5182581 (1993-01-01), Kashimura et al.
patent: 5216450 (1993-06-01), Koitabashi et al.
E. Erturk, et al., "Ink Retention in a Color Thermal Inkjet Pen", Hewlett-Packard Journal, pp. 41-45, Aug., 1988.

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