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:
Apr. 02, 2013
Filed:
Oct. 30, 2009
Verner Delueg, Brixen, IT;
Verner Delueg, Brixen, IT;
Durst Phototechnik Digital Technology GmbH, Lienz, AT;
Abstract
The invention relates to an ink supply system () for an inkjet printer () as well as a method of operating the ink supply system and an inkjet printer. The inkjet printer comprises a print head arrangement () incorporating several print heads () with one or more nozzles () for at least one color. The print heads () are connected via connecting lines () to a supply tank () connected via a filling line to an intermediate tank () with a conveyor means () and a filter arrangement () connected in between, and connected separately in each case via second connecting lines () to a common return tank (). Means () are provided by means of which a pressure difference can be maintained in the supply tank () and/or in the return tank () as and when necessary to control a flow of ink from the supply tank () via the flow passages () of the print heads () connected in parallel to the return tank (). The return tank () is directly connected to the supply tank () via a return line (), optionally with a conveyor means () connected in between.