Invention Grant
US08148038B2 Image bearing member, process cartridge, image forming apparatus and method of forming image bearing member
有权
图像承载部件,处理盒,图像形成装置和图像承载部件的形成方法
- Patent Title: Image bearing member, process cartridge, image forming apparatus and method of forming image bearing member
- Patent Title (中): 图像承载部件,处理盒,图像形成装置和图像承载部件的形成方法
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Application No.: US12166924Application Date: 2008-07-02
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Publication No.: US08148038B2Publication Date: 2012-04-03
- Inventor: Yukio Fujiwara , Tetsuro Suzuki , Hiroshi Tamura , Hiroshi Ikuno , Hidetoshi Kami , Takafumi Iwamoto
- Applicant: Yukio Fujiwara , Tetsuro Suzuki , Hiroshi Tamura , Hiroshi Ikuno , Hidetoshi Kami , Takafumi Iwamoto
- Applicant Address: JP Tokyo
- Assignee: Ricoh Company, Ltd.
- Current Assignee: Ricoh Company, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Cooper & Dunham LLP
- Priority: JP2007-174534 20070702
- Main IPC: G03G5/00
- IPC: G03G5/00

Abstract:
An image bearing member including an electroconductive substrate, a charge generating layer located overlying the electroconductive substrate, a charge transport layer located overlying the charge generating layer, the charge transport layer comprising a charge transport material and a protective layer having a thickness of from 3 to 15 μm located overlying the charge transport layer, wherein the density of the charge transport material in the protective layer at depth of 2 μm from the surface of the charge transport layer satisfies the following relationship: 10(%)≦(Charge transport material)/{(Radical polymerizable monomer having a charge transport structure)+(Radical polymerizable monomer having no charge transport structure)+(Charge transport material)}×100≦30(%).
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