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:
Apr. 10, 2007
Filed:
Sep. 17, 2004
Yasufumi Kayahara, Iwatsuki, JP;
Akitoshi Akaike, Iwatsuki, JP;
Toshiaki Suzuki, Iwatsuki, JP;
Atsuna Saiki, Iwatsuki, JP;
Masahiro Ando, Minamiashigara, JP;
Yasufumi Kayahara, Iwatsuki, JP;
Akitoshi Akaike, Iwatsuki, JP;
Toshiaki Suzuki, Iwatsuki, JP;
Atsuna Saiki, Iwatsuki, JP;
Masahiro Ando, Minamiashigara, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
The present invention provides a development roller disposed in proximity of a photosensitive body which is charged by a charging member and on which an electrostatic latent image is formed, the development roller performing development by transferring toner to the photosensitive body. The development roller includes a toner layer formation area where a toner layer is formed on a surface of a development roller main body portion and a small diameter portion which has a diameter smaller than that of the toner layer formation area and which is located in at least a part of an area where the toner layer is not formed on the surface of the development roller main body portion.