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:
Nov. 18, 2025
Filed:
Oct. 11, 2023
Keyence Corporation, Osaka, JP;
Hajime Hashimoto, Osaka, JP;
Hideki Yamakawa, Osaka, JP;
KEYENCE CORPORATION, Osaka, JP;
Abstract
To prevent a failure of an ink jet printer due to ink clogging in a hollow needle and the vicinity thereof. A continuous ink jet printer includes: an ink tank that stores ink and a solvent as a printing ink; a printing head that performs printing with the printing ink; an ink hollow needle that accesses the ink in an ink cartridge when an ink reservoir receives the ink cartridge; a first ink tube that causes the ink to flow from the ink hollow needle to the ink tank; and a supply control section that executes suction control to generate a flow from the ink hollow needle toward the first ink tube when the ink is taken out from the ink cartridge received in the ink reservoir, and executes blowing control to generate a flow from the first ink tube toward the ink hollow needle when reverse-flow cleaning is performed.