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.

Date of Patent:
Apr. 12, 2022

Filed:

Jul. 01, 2021
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventors:

Shizuma Nishimura, Shizuoka, JP;

Koji Nihonyanagi, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/20 (2006.01);
U.S. Cl.
CPC ...
G03G 15/5062 (2013.01); G03G 15/2053 (2013.01); G03G 15/5041 (2013.01); G03G 15/55 (2013.01); G03G 15/607 (2013.01);
Abstract

An image forming apparatus includes: an image forming unit configured to form an image on a sheet based on original image data; a selection unit configured to determine a non-image region of the sheet to which toner does not attach in a formation of the image by the image forming unit based on the original image data, and select, from the non-image region, a determination region depending on an image defect to be detected; a reading unit configured to read a surface of the sheet; and a control unit configured to obtain read image data by causing the reading unit to read the determination region after the image forming unit has formed the image, and perform detection processing for detecting whether the image defect has occurred based on the read image data.


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