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. 23, 2017
Filed:
Dec. 21, 2010
Applicant:
Yasufumi Kayahara, Tokyo, JP;
Inventor:
Yasufumi Kayahara, Tokyo, JP;
Assignee:
CANON FINETECH INC., Misato-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/08 (2006.01);
U.S. Cl.
CPC ...
G03G 15/0877 (2013.01); G03G 15/0872 (2013.01); G03G 15/0839 (2013.01);
Abstract
The present invention prevents a toner bottle from being erroneously determined to be empty and allows toner to be reliably refilled into a hopper and thus a developing unit in an image forming apparatus including the developing unit configured to develop an electrostatic latent image formed on an image carrier, using toner.