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:
Jul. 21, 2015
Filed:
Jul. 08, 2013
Canon Kabushiki Kaisha, Tokyo, JP;
Kohei Matsuda, Fujisawa, JP;
Koichiro Takashima, Fujisawa, JP;
Masahiro Yoshida, Tokyo, JP;
Kuniaki Tamagaki, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
Based on a photosensitive drum life threshold value when each of the plurality of image formation execution modes is independently used, and a photosensitive drum life threshold value according to a usage rate of each of the image formation execution modes, the image forming apparatus having a plurality of image formation execution modes calculates a photosensitive drum life threshold value according to the usage rate. Then, the image forming apparatus compares the calculated photosensitive drum life threshold value with a remaining CT film thickness prediction value for the photosensitive drum to determine the life of the photosensitive drum.