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. 06, 2003
Filed:
Aug. 22, 2000
Ramon Vega, Sabadell, ES;
Xavier Girones, Mora la Nova, ES;
Xavier Bruch, Sant Cugat del Valles, ES;
Antoni Murcia, San Diego, CA (US);
Kenneth E Trueba, Philomath, OR (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A method for servicing an inkjet printhead effects recovery against a particular printhead failure mode via implementation of a printhead servicing routine including, but not limited to, a bubble recovery routine, a contaminant purging routine, and/or a (standard) printhead servicing routine. In a preferred embodiment, the method for servicing an inkjet printhead takes into consideration nozzle health data, diagnostics, or the like. In a preferred embodiment, a bitmap or mask is employed to control firing of the nozzles during the servicing of the printhead. In a preferred embodiment, the servicing method includes the step of: firing the printing nozzles in a manner tending to force contaminants at the printing nozzles toward one end of the printhead. In another preferred embodiment, the servicing method includes the steps of: providing an inkjet printhead with larger-sized sewage nozzles at its edges; firing the printhead nozzles in a manner which forces contaminants to the edges; and firing the sewage nozzles to expel the contaminants.