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:
Apr. 28, 2015
Filed:
May. 03, 2013
Applicant:
Canon Kabushiki Kaisha, Toyko, JP;
Inventor:
Masahiro Odaira, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03F 3/08 (2006.01); H04N 1/04 (2006.01); G03G 15/00 (2006.01); H04N 1/60 (2006.01); H04N 1/00 (2006.01);
U.S. Cl.
CPC ...
H04N 1/04 (2013.01); G03G 15/5025 (2013.01); H04N 1/6033 (2013.01); H04N 1/00596 (2013.01);
Abstract
An image forming apparatus capable of performing gradation correction without causing a user to perform a troublesome operation. The image forming apparatus includes an image reading unit that reads an original. A chart is formed on a recording material, and the recording material having the chart formed thereon is conveyed to the image reading unit via a shared conveying path used for both of reading the original and forming an image on the recording material. The conveyed recording material is read by the image reading unit, and gradation correction is performed based on the chart read by the image reading unit.