Ink-jet pen gas separator and purge system

Details Ink-jet pen gas separator and purge system Ink-jet pen gas separator and purge system

1995-08-25

1998-11-24

Le, N.

Incremental printing of symbolic information

Ink jet

Fluid or fluid source handling means

347 92, B41J 2175

Patent

active

058414541

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: 4628333 (1986-12-01), Terasawa
patent: 5537134 (1996-07-01), Baldwin et al.

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