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. 12, 2005
Filed:
Dec. 24, 2002
Applicant:
Toru Kabashima, Ibaraki, JP;
Inventor:
Toru Kabashima, Ibaraki, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G015/08 ; G03G015/10 ;
U.S. Cl.
CPC ...
Abstract
In case the output of an antenna member does not return to a first level even after an execution of a toner replenishing operation for a predetermined period from a state where an image forming operation is prohibited, the toner replenishing operation is terminated. Such configuration avoids an unnecessary idle rotation of a developing device at the replacement of the developing device or in case an empty toner cartridge is mounted again on an image forming apparatus, thereby suppressing drawbacks such as an image fog or an image density loss.