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. 02, 2010
Filed:
Mar. 19, 2008
Masashi Fujishima, Osaka, JP;
Shoichi Sakata, Osaka, JP;
Takahisa Nakaue, Osaka, JP;
Toyotsune Inoue, Osaka, JP;
Akihiro Watanabe, Osaka, JP;
Yukihiro Mori, Osaka, JP;
Masashi Fujishima, Osaka, JP;
Shoichi Sakata, Osaka, JP;
Takahisa Nakaue, Osaka, JP;
Toyotsune Inoue, Osaka, JP;
Akihiro Watanabe, Osaka, JP;
Yukihiro Mori, Osaka, JP;
Kyocera Mita Corporation, , JP;
Abstract
An image forming apparatus has a photoconductive member, and a developing roller develops a latent image on the photoconductive member by a first alternating-current bias in the form of a rectangular wave. The following relationships are satisfied in calculating the duty ratio (D) of the first alternating-current bias using an application period of voltage in a direction to transfer the toner from the developing roller towards the photoconductive member as a positive period: