ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC APPARATUS
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United States of America Patent
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Issued Date -
Nov 2, 2023
app pub date -
Apr 25, 2023
filing date -
Apr 28, 2022
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Abstract
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%.
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