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. 01, 2026
Filed:
Apr. 19, 2024
Kyocera Document Solutions Inc., Osaka, JP;
Masato Usui, Osaka, JP;
Jun Nakano, Osaka, JP;
Hiroomi Nakatsuji, Osaka, JP;
Naoko Kawashima, Osaka, JP;
Abstract
A control unit causes a recording head to eject ink from nozzles corresponding to an image to be printed. An ejection malfunction nozzle detecting unit causes the recording head to print a test pattern, and detects an ejection malfunction nozzle on the basis of a scanned image of the test pattern. The test pattern includes plural test pattern images such that in each of the plural test pattern images a dot is not formed at a dot position of a target nozzle set as a non ejection nozzle, and the target nozzles of the plural test pattern images are sequentially shifted by one nozzle in a primary scanning direction. Further, the ejection malfunction nozzle detecting unit determines an ejection malfunction nozzle on which ejection deviation occurs, on the basis of density decreasing amounts of respective density decrease parts in the plural test pattern images in the scanned image.