Ink supplier

Details Ink supplier Ink supplier

1992-06-29

1996-09-10

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 2175

Patent

active

055552382

ABSTRACT:
In the present invention, draft holes are provided a the corners of an ink storage tank. The holes have diameters which enable them to hold ink inside the ink storage tank by the surface tension of the ink, and even when the position of the ink storage tank is changed to a different position, some of the draft holes can be positioned higher than the ink level. This makes it possible to communicate the inside of the ink storage tank with air and keeps the inside pressure at atmospheric pressure, whereby ink leakage through the draft hole is prevented. At the draft holes positioned lower than the ink level, the ink is held by the surface tension of the ink, thus preventing ink leakage through the draft holes.

REFERENCES:
patent: 4306245 (1981-12-01), Kasugayama et al.
patent: 4511906 (1985-04-01), Hara
patent: 5047790 (1991-09-01), Cowger et al.

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