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:
Sep. 16, 2008
Filed:
Jul. 12, 2006
Hidehiko Yamaguchi, Kanagawa, JP;
Chikaho Ikeda, Kanagawa, JP;
Hideki Moriya, Kanagawa, JP;
Masao Ohmori, Kanagawa, JP;
Hidehiko Yamaguchi, Kanagawa, JP;
Chikaho Ikeda, Kanagawa, JP;
Hideki Moriya, Kanagawa, JP;
Masao Ohmori, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
An image forming apparatus, includes: an image carrier that carries a developer image by a charge layer provided on a surface of the image carrier; a charger that charges the image carrier; a feeder that feeds the charger with a charge; a total charge amount detector that detects the total amount of the charge output by the feeder; an unsupplied charge amount calculator that calculates the amount of the charge output by the feeder but not supplied to the charger; and a layer thickness calculator that calculates the thickness of the charge layer based on the unsupplied charge amount calculated by the unsupplied charge amount calculator and the total charge amount detected by the total charge amount detector.