The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 08, 2011
Filed:
Dec. 15, 2005
Paul Wouters, O.L.V. Waver, BE;
Bart Verhoest, Niel, BE;
Werner Van DE Wynckel, Mortsel, BE;
Robert Janssens, Geel, BE;
Erwin Kempeneers, Eke-Nazareth, BE;
Paul Wouters, O.L.V. Waver, BE;
Bart Verhoest, Niel, BE;
Werner Van de Wynckel, Mortsel, BE;
Robert Janssens, Geel, BE;
Erwin Kempeneers, Eke-Nazareth, BE;
Agfa Graphics NV, Mortsel, BE;
Abstract
An ink circulation system for use in an inkjet printing apparatus includes an inkjet printhead, an ink supply path for supplying an ink to the inkjet printhead and an ink return path for returning ink not used for printing from the inkjet printhead. The ink return path is coupled to the ink supply path for replenishing the ink supply path with the ink returned from the printhead. The coupling establishes an ink circulation circuit. The ink circulation circuit can be replenished with fresh ink from a main tank, as ink is withdrawn by the printhead for printing. In the circulation system an active through-flow ink degassing unit is provided to control the dissolved gas level of the ink in the ink circulation system.