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.

Date of Patent:
Dec. 05, 2023

Filed:

Jun. 08, 2019
Applicant:

Hewlett-packard Development Company, L.p., Spring, TX (US);

Inventors:

Jordan David Spangler, Corvallis, OR (US);

Eric Thomas Martin, Corvallis, OR (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01); G01N 9/00 (2006.01);
U.S. Cl.
CPC ...
B41J 2/04558 (2013.01); B41J 2/04586 (2013.01); G01N 9/00 (2013.01);
Abstract

An example of an apparatus is provided. The apparatus includes a printhead to dispense drops of print fluid on a media. The drops are to travel along a drop path through air from the printhead. In addition, the apparatus includes a light source to emit light across the drop path. The apparatus also includes a detector to detect an intensity of the light received from the light source. The drop path is to intersect an optical path from the light source to the detector. Furthermore, the apparatus includes a coating disposed on the optical path between the drop path and the detector. The coating is to absorb a threshold amount of the light.


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