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:
Jan. 11, 2022
Filed:
Nov. 20, 2017
Applicant:
Hewlett-packard Development Company, L.p., Spring, TX (US);
Inventors:
Kevin Lo, Vancouver, WA (US);
Jody L Clayburn, Vancouver, WA (US);
Assignee:
Hewlett-Packard Development Company, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 11/00 (2006.01); B41J 29/02 (2006.01); B41J 29/13 (2006.01); B41J 29/38 (2006.01);
U.S. Cl.
CPC ...
B41J 11/0095 (2013.01); B41J 29/02 (2013.01); B41J 29/13 (2013.01); B41J 29/38 (2013.01);
Abstract
A media sensing device may include an electromagnetic radiation source, a light guide located on an opposite side of a media feed path respective to the electromagnetic radiation source, and a photodetector to detect electromagnetic radiation from the electromagnetic radiation source and directed by the light guide. The photodetector detects the presence of media upstream from a heated pressure roller (HPR) in response to the media obstructing the detection of electromagnetic radiation from the electromagnetic radiation source.