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:
May. 18, 2021
Filed:
Sep. 26, 2019
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Toshiaki Tokisawa, Kawasaki, JP;
Tsuyoshi Saeki, Kawasaki, JP;
Takashi Abe, Kawasaki, JP;
Yumi Mukoyama, Kawasaki, JP;
Ryoma Arai, Kawasaki, JP;
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/17 (2006.01); B41J 2/165 (2006.01); B41J 2/175 (2006.01);
U.S. Cl.
CPC ...
B41J 2/1721 (2013.01); B41J 2/16505 (2013.01); B41J 2/17596 (2013.01);
Abstract
An inkjet printing apparatus performs: a first operation for pulling out ink in a flow path of the ejection opening up to the collection flow path into the first tank by operating the tank vacuum pump with the supply valve being closed and a second operation for pulling out ink in a flow path of the first tank up to the ejection opening by operating the cap vacuum pump with the collection valve being closed and the atmosphere release valve being opened.