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:
Jan. 05, 2010
Filed:
Apr. 04, 2007
Kazuyuki Tada, Minamiashigara, JP;
Masaru Agatsuma, Minamiashigara, JP;
Tomotake Inagaki, Minamiashigara, JP;
Tomomasa Sato, Minamiashigara, JP;
Toru Asahi, Minamiashigara, JP;
Naoki Morita, Ebina, JP;
Kenji Ikeda, Ebina, JP;
Kazuyuki Tada, Minamiashigara, JP;
Masaru Agatsuma, Minamiashigara, JP;
Tomotake Inagaki, Minamiashigara, JP;
Tomomasa Sato, Minamiashigara, JP;
Toru Asahi, Minamiashigara, JP;
Naoki Morita, Ebina, JP;
Kenji Ikeda, Ebina, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The invention provides an electrophotographic photoreceptor having a cylindrical support, and a charge-generating layer and a charge-transporting layer on or above the cylindrical support, wherein the thickness of the charge-generating layer is increased from the central portion in the axial direction of the cylindrical support towards both end portions thereof, and the difference in thickness between the two end portions is 2.5% or less of an average thickness of the charge-generating layer. Also disclosed are a method of producing the electrophotographic photoreceptor, a process cartridge including the electrophotographic photoreceptor, and an image-forming apparatus.