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:
Jan. 24, 2023
Filed:
Feb. 19, 2021
Canon Kabushiki Kaisha, Tokyo, JP;
Takeshi Kaneda, Chiba, JP;
Masaki Kashiwagi, Kanagawa, JP;
Junichi Mori, Ibaraki, JP;
Aya Kasahara, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A printing apparatus includes an image former which forms a tone pattern image on a sheet conveyed from a sheet feeding deck, a color measurer which performs color measurement by reading the tone pattern image formed by the image former, and one or more controllers including one or more processors and one or more memories. The one or more controllers are configured to generate tone correction data based on a difference between color measurement results by the color measurer and a reference value, and perform tone correction for print target image data by using the generated tone correction data. The reference value is registered in association with a type of sheet that is accommodated in the sheet feeding deck, and in a case where the type of sheet that is accommodated in the sheet feeding deck is changed, the reference value is cleared.