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:
Nov. 18, 2003
Filed:
Mar. 08, 2001
Applicant:
Inventors:
Ray A. Walker, Eugene, OR (US);
Rhonda L. Wilson, Monmouth, OR (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/195 ;
U.S. Cl.
CPC ...
B41J 2/195 ;
Abstract
A printing system includes an inkjet printhead for selectively depositing ink drops on print media. An ink reservoir stores ink to be provided to the inkjet printhead. An ink level sensing circuit provides an ink level sense output that is indicative of a sensed volume of ink in the ink reservoir. A memory device stores sensor compensation information. A processor responsive to output of the memory device and the ink level sense output generates a compensated ink level sense output. The processor provides an estimate of available ink based on the compensated ink level sense output.