PRINTING SYSTEM AND DEFECTIVE NOZZLE DETECTION METHOD

A printing system including a printing unit (205) and an imaging unit (310) is provided with: a defect detection unit (322) that detects a defect included in a captured image; a defective nozzle position candidate extraction unit (323) that extracts N position candidates as candidates for a position...

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Bibliographic Details
Main Authors HATANO, Keiji, KIYOHARA, Satoru, IKEDA, Yusaku
Format Patent
LanguageEnglish
French
German
Published 13.09.2023
Subjects
CORRECTION OF TYPOGRAPHICAL ERRORS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:A printing system including a printing unit (205) and an imaging unit (310) is provided with: a defect detection unit (322) that detects a defect included in a captured image; a defective nozzle position candidate extraction unit (323) 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 (120) that performs a defect correction process; and a defective nozzle identification unit (325) that identifies the defective nozzle. The first correction unit (120) 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 (325) identifies the defective nozzle based on the position of the defect detected by the defect detection unit (322) based on the corrected image.
Bibliography:Application Number: EP20230153539