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:
Jul. 27, 1999
Filed:
Mar. 03, 1997
Max S Gunther, La Jolla, CA (US);
Ignacio Olazabal, Sant Cugat del Valles, ES;
Mark E Young, Santa Rosa, CA (US);
Elizabeth Zapata, Barcelona, ES;
Joseph E Scheffelin, Poway, CA (US);
David S Hunt, San Diego, CA (US);
Alfred U Zepeda, San Marcos, CA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
An inkjet printing system provides an on/off valve adapted for periodic engagement with an inlet port on a print cartridge mounted in a carriage. The valve is connected to an ink supply which is located off the carriage. As the ink reservoir in the print cartridge is slowly depleted during operation of the printing system, a mechanism periodically moves the valve from a first passive position separated from the print cartridge to a second active position engaged with the inlet port of the print cartridge in order to allow replenishment of the ink reservoir in the print cartridge without removing the print cartridge from the carriage.