Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2008-05-27
2008-05-27
Vo, Anh T. N. (Department: 2861)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
Reexamination Certificate
active
07377628
ABSTRACT:
An ink container includes an ink containing unit having a housing which directly contains ink, an ink guide, a movable member changing the internal volume of the ink containing unit, and a buffer chamber. The buffer chamber allows changing the internal volume of the ink containing unit when the movable member moves, and has an air communicating portion and is defined by a wall structure. A negative pressure controlling mechanism for controlling the negative pressure in the ink containing unit generated when the ink is guided out of the ink containing unit is provided apart from the housing.
REFERENCES:
patent: 5600358 (1997-02-01), Baldwin et al.
patent: 5988803 (1999-11-01), Komplin et al.
patent: 6168267 (2001-01-01), Komplin
patent: 6247804 (2001-06-01), Watanabe
patent: 6394593 (2002-05-01), Komplin et al.
patent: 6755500 (2004-06-01), Hirano et al.
Ishimatsu Shin
Oikawa Satoshi
Canon Kabushiki Kaisha
Canon U.S.A. Inc I.P. Div
Vo Anh T. N.
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