ALEXANDRIA, Va., June 17 -- United States Patent no. 12,315,139, issued on May 27, was assigned to Ricoh Co. Ltd. (Tokyo).
"Enhanced print defect detection" was invented by Nikita Gurudath (Boulder, Colo.), Scott R. Johnson (Erie, Colo.), Nathan Young (Boulder, Colo.) and Ziling Zhang (Boulder, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are provided for. One embodiment is a system that includes an interface configured to receive an image of media printed on with print data, and memory configured to store defect reference data of nozzles belonging to printheads of a printer. The system also includes a print defect controller configured to detect a nozzle defect in the image based...