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:
Sep. 17, 2013
Filed:
Aug. 09, 2011
Hiroki Umezawa, Shizuoka-ken, JP;
Hiroki Umezawa, Shizuoka-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Tec Kabushiki Kaisha, Tokyo, JP;
Abstract
A print calibration processing apparatus includes a test image output section configured to outputs plural patches for gradation characteristic generation to an image forming section, a gradation characteristic data generation section configured to use, as a read object, a test chart obtained by printing the test images on both the sides of the print sheet by the image forming section while shifting print positions of the test images in a front and back direction, reads the images on a first and second side of the test chart, and generates gradation characteristic data of front test images on the first side and the second side and gradation characteristic data of show-through test images on the first and second side, a correction data generation section configured to determine a correction value of maximum gradation based on gradation characteristics of the front and the show-through test images, and a correction section configured to correct gradation of image data.