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:
Nov. 18, 2014
Filed:
Aug. 08, 2012
Kuniaki Tamagaki, Kawasaki, JP;
Masahiro Yoshida, Tokyo, JP;
Koichiro Takashima, Fujisawa, JP;
Nobuo Oshima, Kawasaki, JP;
Kohei Matsuda, Fujisawa, JP;
Takashi Mukai, Kawasaki, JP;
Jun Miura, Kawasaki, JP;
Kuniaki Tamagaki, Kawasaki, JP;
Masahiro Yoshida, Tokyo, JP;
Koichiro Takashima, Fujisawa, JP;
Nobuo Oshima, Kawasaki, JP;
Kohei Matsuda, Fujisawa, JP;
Takashi Mukai, Kawasaki, JP;
Jun Miura, Kawasaki, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image forming apparatus includes an image bearing member, a developer container, a first calculator, and a second calculator. The first calculator calculates an amount of the developer supplied to the image bearing member from the developer container, on the basis of an amount of the developer measured by a measuring device after an image forming operation, and an amount of the developer initially contained in the developer container. A controller outputs an information signal relating to the developer amount accumulated in the collection container on the basis of the amount of the developer calculated by the first calculator and the amount of the developer calculated by the second calculator.