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:
Apr. 30, 2024
Filed:
Nov. 05, 2020
Assa Abloy Ab, Stockholm, SE;
Brent D. Lien, Minneapolis, MN (US);
Evan Pastor, Edina, MN (US);
Chad Everett Beery, Waconia, MN (US);
Bradley O'Hara, Chanhassen, MN (US);
Kyrsten Dominique Elemino, Hopkins, MN (US);
Tanya Jegeris Snyder, Edina, MN (US);
ASSA ABLOY AB, Stockholm, SE;
Abstract
Systems and techniques for preserving and improving ink jet nozzle health and printing reliability are disclosed herein. The method may include monitoring whether a triggering event has occurred. In response to detecting the triggering event has occurred, pumping at least a portion of ink contained in a header tank in a direction toward an ink cartridge through a tube connecting the header tank to the ink cartridge. The header tank connected to a print head included as a part of a scan head. The method may further include circulating the ink through the tube back into the header tank, and agitating the scan head by moving the scan head along an x-y gantry. Additional methods may include reverse purging, ejecting a portion of ink through nozzles on the print head while simultaneously wiping a nozzle plate included on the print head, and randomizing print head location when printing.