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. 02, 2004
Filed:
Oct. 30, 2002
Mark A. DeVries, Albany, OR (US);
Rhonda L. Wilson, Monmouth, OR (US);
Jeffrey L. Thielman, Corvallis, OR (US);
Macia Sole, Sant Cugat del Valles Barcelona, ES;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
A printer consumable includes an ink bag, and a supply of ink included within the ink bag, and optionally a memory device and a pressure sensor. The pressure sensor communicates an ink bag pressure loss measurement through a communication means to an ink delivery system. The communication means uses the ink bag pressure loss measurement to determine a minimum pressure to print. In one embodiment, the communication means periodically polls the pressure sensor to acquire the ink bag pressure loss measurement and records the measurement on the memory device of the printer consumable. When the communication means receives a print job, the measurement is acquired from the memory device to determine the minimum pressure to print before the print job is processed.