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:
Oct. 06, 2009
Filed:
Oct. 26, 2006
Toshiki Takiguchi, Yamatokoriyama, JP;
Tatsuya Inoue, Nara, JP;
Hirokazu Yamauchi, Uji, JP;
Kazuhiro Matsuyama, Ikoma, JP;
Yasuhiro Takai, Sakurai, JP;
Toshiki Takiguchi, Yamatokoriyama, JP;
Tatsuya Inoue, Nara, JP;
Hirokazu Yamauchi, Uji, JP;
Kazuhiro Matsuyama, Ikoma, JP;
Yasuhiro Takai, Sakurai, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In an image forming apparatus of the present invention, a scorotron charging device has a meshed grid electrode which is meshed more coarsely in a high-speed apparatus than a meshed grid electrode in a low-speed apparatus according to a circumferential velocity of a photoreceptor. With this arrangement, it is possible to charge the photoreceptor at a predetermined potential in the high-speed apparatus, without increase of the amount of ozone generation and upsizing of the image forming apparatus.