Method for separating and purging gases from a free-ink ink-jet

Details Method for separating and purging gases from a free-ink ink-jet Method for separating and purging gases from a free-ink ink-jet

1998-03-18

1999-11-23

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

B41J 219

Patent

active

059888067

ABSTRACT:
An apparatus and method for removing air or other gases from a free-ink ink-jet pen is provided in a manner that does not waste ink or require disposal of purged ink. A gas separation and purge mechanism is incorporated into a pen body construct having an ink containment chamber such that gases will rise toward the mechanism. A vacuum is cyclically applied to the gas separation and purge mechanism to remove the gas and to allow the ink containment chamber to refill from a remote reservoir as needed.

REFERENCES:
patent: 4301459 (1981-11-01), Isayama et al.
patent: 4628333 (1986-12-01), Terasawa
patent: 5841454 (1998-11-01), Hall et al.

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