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:
Jun. 23, 2026
Filed:
Jan. 18, 2024
Canon Kabushiki Kaisha, Tokyo, JP;
Koji Yumoto, Ibaraki, JP;
Takashi Yokoya, Saitama, JP;
Toshifumi Oikawa, Ibaraki, JP;
Yutaka Ando, Ibaraki, JP;
Akinobu Nishikata, Chiba, JP;
Riki Fukuhara, Chiba, JP;
Yuichiro Oda, Kanagawa, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus including an image forming unit, a fixing unit, a reading unit, a reference member, and a controller is described. The image forming unit forms an image and a detection image on a sheet. The detection image is used for detecting geometric characteristics of an image to be formed on a sheet by the image forming unit. The fixing unit fixes the image and the detection image formed by the image forming unit on the sheet. The reading unit reads the detection image on the sheet. The controller adjusts geometric characteristics of the image to be formed on a sheet based on a reading result of the detection image by the reading unit, and controls the reading unit to read the reference member and executes shading correction based on a reading result of the reference member.