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:
Mar. 16, 2021
Filed:
Oct. 03, 2019
Canon Kabushiki Kaisha, Tokyo, JP;
Shinsuke Tsuji, Kawasaki, JP;
Atsuhito Yoshizawa, Tokyo, JP;
Arihiro Saito, Saitama, JP;
Takashi Saito, Zushi, JP;
Ryota Takeuchi, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of forming an image on a recording medium using an ink jet recording apparatus. The ink jet recording apparatus includes a recording head in which a plurality of recording element substrates is arranged to form joint portions and a plurality of wipers is arranged to form wiper overlapping portions. The method includes ejecting a first ink from a first ejection orifice array, ejecting a second ink from a second ejection orifice array, and the plurality of recording element substrates with the plurality of wipers. The first ejection orifice array is wiped and then the second ejection orifice array is wiped. At least a part of the wiper overlapping portion wipes the joint portion. A dynamic surface tension (γ) of the first ink is equal to or more than a static surface tension (γ) of the second ink.