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:
Oct. 13, 2020
Filed:
Sep. 10, 2019
Seiko Epson Corporation, Tokyo, JP;
Jun Hoshii, Nagano, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A density correction value determining method of correcting a printing density in a printing apparatus that performs printing by ejecting ink from a plurality of nozzles onto a medium, includes printing a test pattern by ejecting ink from the plurality of nozzles, acquiring captured image data by imaging printed test pattern, calculating a first density correction value for bringing the printing density closer to a predetermined reference value set when one raster is formed by ejecting ink from each single nozzle of the plurality of nozzles based on a density of acquired captured image data, and calculating a second density correction value for bringing the printing density closer to a predetermined reference value set when one raster is formed by combining different nozzles of the plurality of nozzles based on the calculated first density correction value.