Incremental printing of symbolic information – Ink jet – Fluid or fluid source handling means
Reexamination Certificate
2004-12-01
2008-10-21
Do, An H. (Department: 2853)
Incremental printing of symbolic information
Ink jet
Fluid or fluid source handling means
C347S085000
Reexamination Certificate
active
07438397
ABSTRACT:
A printhead comprising a first ink reservoir in fluid communication with an outlet nozzle and downstream from a first ink filter, and a pump assembly in fluid communication with the first ink reservoir and operative to withdraw gas from the first ink reservoir and subsequently inhibit fluid communication between the withdrawn gas and the first ink reservoir. The present invention also includes method of removing gas in fluid communication with an ink reservoir, the method comprising purging gas from a gas accumulation area of an ink reservoir, where purging act includes manipulating a valve assembly downstream from an ink filter, the valve assembly operative to separate the gas accumulation area of the ink reservoir from an external environment, the valve assembly operative to facilitate unidirectional volumetric flow of the gas between the gas accumulation area and the external environment.
REFERENCES:
patent: 4149172 (1979-04-01), Heinzl et al.
patent: 5126767 (1992-06-01), Asai
patent: 5426459 (1995-06-01), Kaplinsky
patent: 5500664 (1996-03-01), Suzuki et al.
patent: 5621445 (1997-04-01), Fong et al.
patent: 5677718 (1997-10-01), Crawford et al.
patent: 5812168 (1998-09-01), Pawlowski, Jr. et al.
patent: 5844577 (1998-12-01), Pawlowski, Jr.
patent: 5847734 (1998-12-01), Pawlowski, Jr.
patent: 5870126 (1999-02-01), Kondo et al.
patent: 5936650 (1999-08-01), Ouchida et al.
patent: 5949459 (1999-09-01), Gasvoda et al.
patent: 6079808 (2000-06-01), Yamaguchi
patent: 6209997 (2001-04-01), Duong et al.
patent: 6257714 (2001-07-01), Seccombe
patent: 6257715 (2001-07-01), Thielman et al.
patent: 6270211 (2001-08-01), Long et al.
patent: 6296345 (2001-10-01), Kline et al.
patent: 6318851 (2001-11-01), Hoen et al.
patent: 6457821 (2002-10-01), Liu et al.
patent: 6471334 (2002-10-01), Kline et al.
patent: 6481837 (2002-11-01), Askren et al.
patent: 6499826 (2002-12-01), Kline et al.
patent: 6652080 (2003-11-01), Childs et al.
patent: 6698870 (2004-03-01), Gunther
patent: 6739706 (2004-05-01), Barinaga et al.
patent: 6752493 (2004-06-01), Dowell et al.
patent: 6761445 (2004-07-01), Hoen et al.
patent: 6773097 (2004-08-01), Dowell
patent: 6874872 (2005-04-01), Lewis et al.
patent: 7118206 (2006-10-01), Stockwell et al.
patent: 2002/0057972 (2002-05-01), Barinaga et al.
patent: 2004/0020552 (2004-02-01), Ruffer et al.
patent: 2005/0084952 (2005-04-01), Bass et al.
patent: 2005/0168520 (2005-08-01), Mantooth et al.
patent: 2006/0114298 (2006-06-01), Anderson et al.
Anderson, Jr. James Daniel
Greer David Emerson
Russell Matthew Joe
Al Hashimi Sarah
Do An H.
Lexmark International Inc.
Taft, Stettinuis & Hollister LLP
LandOfFree
Methods and devices for purging gases from an ink reservoir does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and devices for purging gases from an ink reservoir, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and devices for purging gases from an ink reservoir will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4006642