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:
Feb. 04, 2020
Filed:
Jul. 09, 2018
Image forming apparatus, test image, and output density adjustment method of image forming apparatus
Toshiba Tec Kabushiki Kaisha, Shinagawa-ku, Tokyo, JP;
Masashi Honda, Kannami Tagata Shizuoka, JP;
TOSHIBA TEC KABUSHIKI KAISHA, Tokyo, JP;
Abstract
An image forming apparatus includes an image forming unit and a control unit. The image forming unit forms a test image based on test image data. The test image data includes a first image area and a second image area. The first image area is disposed adjacent to the second image area. The first image area is an image area including a mixed color image of a first primary color and a second primary color and has the same gradation value in a main scanning direction. The second image area is an image area of the second primary color and has the same gradation value in the main scanning direction. The control unit corrects a correction table based on the test image formed in the image forming unit. In the correction table, for each primary color, the gradation value is corrected according to a position in the main scanning direction.