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:
Dec. 16, 2025
Filed:
Nov. 29, 2023
Kyocera Document Solutions Inc., Osaka, JP;
Yosuke Katayama, Osaka, JP;
KYOCERA Document Solutions Inc., Osaka, JP;
Abstract
A cleaning method is a method of cleaning a recording head that has an ink-ejecting surface and ejects ink from the ink-ejecting surface. The cleaning method includes supplying a cleaning liquid to the ink-ejecting surface of the recording head, and wiping the ink-ejecting surface of the recording head twice with a wipe blade after the supplying a cleaning liquid. A first wiping speed in the wiping is 5 mm/sec or more and 25 mm/sec or less. A second wiping speed in the wiping is 45 mm/sec or more and 100 mm/sec or less. The cleaning liquid contains water, a water-soluble organic solvent, an amphoteric surfactant having a betaine structure, and a silicone surfactant. The viscosity of the cleaning liquid is 1.0 mPa·s or more and 3.1 mPa·s or less. The static surface tension of the cleaning liquid is 10 mN/m or more and 25 mN/m or less.