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:
Aug. 04, 2020

Filed:

May. 09, 2019
Applicant:

Canon Kabushiki Kaisha, Tokyo, JP;

Inventor:

Nobuhiko Zaima, Kashiwa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G06K 15/02 (2006.01); G06K 15/14 (2006.01);
U.S. Cl.
CPC ...
G03G 15/5025 (2013.01); G06K 15/14 (2013.01); G06K 15/1825 (2013.01);
Abstract

An image forming apparatus configured to form an image on a sheet includes an image bearing member configured to rotate in a predetermined direction, and an image forming unit configured to form an image on the image bearing member based on image data converted based on a conversion condition. A controller of the image forming apparatus controls the image forming unit to form a plurality of measurement images different in density along the predetermined direction of the image bearing member, detects the plurality of measurement images, and generates the conversion condition based on detection results of the plurality of measurement images. The controller controls the image forming unit to form the plurality of measurement images in a dispersed manner in terms of positions of the plurality of measurement images on the image bearing member in accordance with periodic unevenness that occurs in the measurement images.


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