US Patent Application 18318217. ELECTROPHOTOGRAPHIC MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS simplified abstract

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ELECTROPHOTOGRAPHIC MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

Organization Name

CANON KABUSHIKI KAISHA==Inventor(s)==

[[Category:TAKASHI Koyanagi of Shizuoka (JP)]]

[[Category:TAKUHO Sato of Shizuoka (JP)]]

ELECTROPHOTOGRAPHIC MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18318217 titled 'ELECTROPHOTOGRAPHIC MEMBER, ELECTROPHOTOGRAPHIC PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

Simplified Explanation

The patent application describes an electrophotographic member, which is a component used in electrophotographic printing technology.

  • The electrophotographic member consists of an electro-conductive substrate, an elastic layer, and a surface layer.
  • The surface layer is made up of fine particles and a binder resin, and it is less than 1.0 μm thick.
  • The fine particles have an average diameter between 0.1 μm and 0.9 μm, and they occupy 60 vol % to 99 vol % of the surface layer.
  • The fine particles have a high elastic modulus of 1,000 MPa or more, indicating their ability to withstand stress and deformation.
  • The binder resin, on the other hand, has a lower elastic modulus ranging from 2 MPa to 200 MPa.
  • The surface layer has a hardness (MD-1 hardness) between 50° and 100°.
  • The elastic layer beneath the surface layer has a different hardness (MD-1 hardness) from the surface layer, with a difference of 5° or more.
  • This innovation aims to improve the performance and durability of electrophotographic members used in printing technology.


Original Abstract Submitted

An electrophotographic member including an electro-conductive substrate, an elastic layer, and a surface layer, the surface layer containing a fine particle and a binder resin, and having a thickness of less than 1.0 μm, the fine particles having an average particle diameter of from 0.1 μm to 0.9 μm, the fine particles having a volume occupancy of 60 vol % to 99 vol % with respect to 100 vol % of the binder resin in the surface layer, the elastic modulus E1 of the fine particle being 1,000 MPa or more, and the elastic modulus E2 of the binder resin being 2 MPa to 200 MPa, and MD-1 hardness H1 of the surface layer being 50° to 100°, and a difference (H1-H2) between the H1 and MD-1 hardness H2 of the elastic layer being 5° or more.

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