Invention Grant
- Patent Title: Magnet roller, developer holder element, develop unit, process cartridge, and image forming apparatus
- Patent Title (中): 磁辊，显影剂保持元件，显影单元，处理盒和成像设备
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Application No.: US13085894Application Date: 2011-04-13
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Publication No.: US08600271B2Publication Date: 2013-12-03
- Inventor: Takashi Innami , Kyohta Koetsuka , Yoshiyuki Takano , Noriyuki Kamiya , Masayuki Ohsawa , Takumi Terasaka
- Applicant: Takashi Innami , Kyohta Koetsuka , Yoshiyuki Takano , Noriyuki Kamiya , Masayuki Ohsawa , Takumi Terasaka
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2010-100723 20100426
- Main IPC: G03G15/09
- IPC: G03G15/09
Abstract:
A magnet roller includes a magnetic field generator being columnar, a support element being columnar, coaxially provided at both ends of the magnetic field generator, and whose diameter is smaller than that of the magnetic field generator, a level element extending along an axis of the magnetic field generator with a distance from the axis, the distance larger than the diameter of the support element, and a high magnetic power element being a main magnetic pole provided on the level element, extending long along the axis of the magnetic field generator.
Public/Granted literature
- US20110262190A1 MAGNET ROLLER, DEVELOPER HOLDER ELEMENT, DEVELOP UNIT, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS Public/Granted day:2011-10-27
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