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. 29, 2005
Filed:
Aug. 13, 2001
Applicant:
Yoji Serizawa, Shizuoka, JP;
Inventor:
Yoji Serizawa, Shizuoka, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G015/00 ;
U.S. Cl.
CPC ...
Abstract
An image forming apparatus is equipped with a process cartridge detachable therefrom, where the process cartridge includes an element relating to image formation. A drive time of the process cartridge driven in the image forming apparatus is counted and it is judged whether an accumulation of the drive time counted reaches a predetermined value. When it is judged that the accumulation of the drive time reaches a predetermined value, an image forming condition of the image forming apparatus is changed over at a timing when the image forming apparatus does not conduct image formation.