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:
Feb. 23, 2016
Filed:
Sep. 25, 2012
Hewlett-packard Development Company, L.p., Houston, TX (US);
Ernesto Garay, Gresham, OR (US);
David Miller Lowe, Vancouver, WA (US);
Trudy Benjamin, Portland, OR (US);
Mark H. MacKenzie, Corvallis, OR (US);
Gregory N. Burton, Camas, WA (US);
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Houston, TX (US);
Abstract
A system for drop detection of fluid drops ejected by a printing device includes a drop detector comprising a radiation source and radiation sensor for illuminating a region in which drops are ejected by a print bar and detecting radiation from the radiation source that is reflected by backscattering from the drops to the radiation sensor; and a controller for controlling the drop detector and the print bar, wherein the controller uses a signal output by the drop detector to determine whether nozzles of the print bar are operating properly.