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:
Jun. 23, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Rie Takekoshi, Kanagawa, JP;
Toshimitsu Danzuka, Tokyo, JP;
Akihiro Tomida, Kanagawa, JP;
Akiko Aichi, Tokyo, JP;
Keita Ishimi, Kanagawa, JP;
Hiroto Kango, Tokyo, JP;
Taku Yokozawa, Kanagawa, JP;
Kazuo Suzuki, Kanagawa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A printing apparatus including a print head ejecting ink, flowing from a first channel into a pressure chamber, from a nozzle, by driving an ejection energy generating element in the pressure chamber, a circulation pump circulates the ink in a circulation channel including the first channel, the pressure chamber, and a second channel that flows the ink from inside the pressure chamber to the outside, a wiping unit with a cleaning member that wipes an ejection port surface of an ejection port and a winding member that winds the cleaning member, and a control unit controls a cleaning operation in which the wiping unit wipes the ejection port surface. When the cleaning operation is performed after the circulation pump is stopped, the cleaning operation is changed based on an elapsed time from the time the circulation pump stopped driving, and the cleaning operation is controlled based on the elapsed time.