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:
May. 30, 2006
Filed:
Jul. 30, 2003
Applicants:
Jose Luis Valero, Barcelona, ES;
Oscar Martinez, Castelldefels, ES;
Inventors:
Jose Luis Valero, Barcelona, ES;
Oscar Martinez, Castelldefels, ES;
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 29/393 (2006.01); B41J 2/17 (2006.01);
U.S. Cl.
CPC ...
Abstract
Fixer is detected on a print mediaby applying a predetermined pattern, FIG., of fixer to the media, and over or under-printing it with a fill of coloured ink, and then optically detecting the predetermined pattern. For example, magenta ink may be applied over the fixer pattern on a glossy media, areas with both fixer and ink having a detectable increase in optical density compared to areas with ink alone. The pattern is scanned and the image information is used to check fixer nozzle functionality and fixer printhead alignment.