Invention Grant
US07693455B2 Conductive member, process cartridge having conductive member, and image forming apparatus having process cartridge
有权
导电构件，具有导电构件的处理盒和具有处理盒的图像形成装置
- Patent Title: Conductive member, process cartridge having conductive member, and image forming apparatus having process cartridge
- Patent Title (中): 导电构件，具有导电构件的处理盒和具有处理盒的图像形成装置
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Application No.: US11836950Application Date: 2007-08-10
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Publication No.: US07693455B2Publication Date: 2010-04-06
- Inventor: Taisuke Tokuwaki , Yutaka Narita , Toshio Kojima , Tadaaki Hattori , Makoto Nakamura , Tadayuki Oshima , Hiroki Furubayashi
- Applicant: Taisuke Tokuwaki , Yutaka Narita , Toshio Kojima , Tadaaki Hattori , Makoto Nakamura , Tadayuki Oshima , Hiroki Furubayashi
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-217913 20060810
- Main IPC: G03G15/02
- IPC: G03G15/02
Abstract:
A conductive member to be disposed so as to abut on an image carrier is provided. The conductive member includes an elongate conductive supporter, an electrical resistance adjusting layer formed on a circumferential surface of the supporter, and a pair of gap maintaining members provided respectively to the two ends of the adjusting layer. A gap with a certain clearance between an outer circumferential surface of the adjusting layer and an outer circumferential surface of the image carrier provided in parallel to the adjusting layer is formed. A stepped portion is formed in a joint section between the adjusting layer and each of the gap maintaining members with the joint section. An inclination is formed so as to be continuously inclined from the outer circumferential surface of each of the gap maintaining members to the outer circumferential surface of the adjusting layer in the stepped portion.
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