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:
Aug. 02, 2005
Filed:
Mar. 21, 2003
Applicants:
Patrick S. Dougherty, Boise, ID (US);
Santiago Rodriguez, Boise, ID (US);
Inventors:
Patrick S. Dougherty, Boise, ID (US);
Santiago Rodriguez, Boise, ID (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G015/08 ;
U.S. Cl.
CPC ...
Abstract
Estimating toner levels. A method embodiment includes maintaining a running pulse width count, sensing a toner level, and comparing the running pulse width count with an expected pulse width count to estimate a toner level. If the estimated toner level deviates from the sensed toner level, the running pulse width count and the sensed toner level are used to estimate the remaining toner level.