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:
Dec. 30, 2014
Filed:
Feb. 02, 2012
Kazunari Shishido, Yokohama, JP;
Sho Nakamura, Yokohama, JP;
Ruriko Mikami, Kawasaki, JP;
Atsushi Hirahara, Kawasaki, JP;
Takayoshi Noguchi, Tokyo, JP;
Akiteru Naka, Machida, JP;
Tatsuhiko Tomita, Kawasaki, JP;
Kazunari Shishido, Yokohama, JP;
Sho Nakamura, Yokohama, JP;
Ruriko Mikami, Kawasaki, JP;
Atsushi Hirahara, Kawasaki, JP;
Takayoshi Noguchi, Tokyo, JP;
Akiteru Naka, Machida, JP;
Tatsuhiko Tomita, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A state of a print head is checked by printing a plurality of images in order on a sheet fed from a sheet feeding unit, and reading the printed images. A region that is inappropriate for performing printing on the fed sheet is detected. When the inappropriate region has been detected, printing the images is stopped and the sheet is cut. Of the cut sheets, the sheet at an upstream is sent back to the sheet feeding unit. Subsequently, the sheet is again fed to perform printing and conduct a test.