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:
Aug. 31, 2004
Filed:
Dec. 09, 2002
Applicant:
Inventors:
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/508 ;
U.S. Cl.
CPC ...
G03G 1/508 ;
Abstract
The image forming apparatus of the present invention having a developer containing section and a developer remaining amount detecting member, and capable of forming an image at any of a plurality of printing speeds, has a configuration in which the averaging method of the developer remaining amount by the developer remaining amount detecting member is changed in response to the printing speed. The invention thus provides an image forming apparatus having a plurality of printing speeds, which permits successive detection of the remaining amount of developer at a high accuracy in response to the printing speed.