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:
May. 09, 2017
Filed:
Jun. 04, 2015
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Kuniaki Tamagaki, Kawasaki, JP;
Motoki Adachi, Ashigarakami-gun, JP;
Satoshi Sunahara, Hachioji, JP;
Takanori Watanabe, Kawasaki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G 15/00 (2006.01); G03G 15/16 (2006.01); G03G 21/18 (2006.01);
U.S. Cl.
CPC ...
G03G 15/55 (2013.01); G03G 15/5037 (2013.01); G03G 15/1645 (2013.01); G03G 21/1875 (2013.01); G03G 2215/1614 (2013.01);
Abstract
An image forming apparatus is provided that includes a light-emitting unit which emits light to an image bearing member which bears a developer image and that detects presence or absence of a developer container storing developer or a shape of the developer container on the basis of the number of electrons discharged from or received by the image bearing member when the light-emitting unit emits the light.