US Patent Application 18306758. ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS simplified abstract
Contents
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
Organization Name
Inventor(s)
MASAYUKI Shinozuka of Chiba (JP)
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18306758 titled 'ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
Simplified Explanation
The patent application describes an electrophotographic photosensitive member, which is a component used in photocopiers and laser printers.
- The photosensitive member consists of a cylindrical support and a photosensitive layer.
- The support is made of aluminum (Al) or an aluminum alloy and has a specific surface structure.
- The surface of the support contains Al crystal grains with specific orientations.
- The orientations include planes with respect to {001}, {101}, and {111}.
- The ratio of the area occupied by the Al crystal grains with {001} orientation is limited to 10% or less.
- The ratio of the area occupied by the Al crystal grains with {111} orientation is more than 10%.
- This specific surface structure of the support enhances the performance and durability of the electrophotographic photosensitive member.
Original Abstract Submitted
An electrophotographic photosensitive member comprises: a support having a cylindrical shape; and a photosensitive layer, wherein the support has a surface formed of Al and/or an Al alloy, and includes Al crystal grains having: (α) a plane at −15° or more and less than +15° with respect to a {001} orientation; (β) a plane at −15° or more and less than +15° with respect to a {101} orientation; and (γ) a plane at −15° or more and less than +15° with respect to a {111} orientation, and wherein a ratio of an area occupied by the Al crystal grain having the (α) to a total area of the surface of the support is 10% or less, and a ratio of an area occupied by the Al crystal grain having the (γ) to the total area of the surface of the support is more than 10%.
