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:
Sep. 29, 2026
Filed:
May. 16, 2023
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2006.01);
U.S. Cl.
CPC ...
B41J 2/0451 (2013.01); B41J 2/04586 (2013.01);
Abstract
A printing apparatus includes: a printing head including a plurality of nozzles each configured to discharge a liquid droplet; a detection unit configured to detect the discharge of the liquid droplet by using a light beam emitted in a position facing the printing head; and a control unit configured to inspect whether discharge states of the nozzles are normal or abnormal based on a result of the detection by the detection unit. The control unit drives the nozzles on a per-nozzle group basis, each nozzle group including at least two or more nozzles and determines a discharge state on the per-nozzle group basis.