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.

Date of Patent:
Apr. 29, 2025

Filed:

Jan. 25, 2023
Applicant:

Screen Holdings Co., Ltd., Kyoto, JP;

Inventors:

Keiji Hatano, Kyoto, JP;

Satoru Kiyohara, Kyoto, JP;

Yusaku Ikeda, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/045 (2005.12);
U.S. Cl.
CPC ...
B41J 2/0451 (2012.12); B41J 2/04586 (2012.12);
Abstract

A printing system including a printing unit and an imaging unit is provided with: a defect detection unit that detects a defect included in a captured image; a defective nozzle position candidate extraction unit that extracts N position candidates as candidates for a position of a defective nozzle based on the position of the defect; a first correction unit that performs a defect correction process; and a defective nozzle identification unit that identifies the defective nozzle. The first correction unit performs the defect correction process while sequentially setting only N nozzles corresponding to the N position candidates one by one as a correction target nozzle. The defective nozzle identification unit identifies the defective nozzle based on the position of the defect detected by the defect detection unit based on the corrected image.


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