Canon kabushiki kaisha (20250138453). ELECTROPHOTOGRAPHIC MEMBER AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
ELECTROPHOTOGRAPHIC MEMBER AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
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ELECTROPHOTOGRAPHIC MEMBER AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
This abstract first appeared for US patent application 20250138453 titled 'ELECTROPHOTOGRAPHIC MEMBER AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS
Original Abstract Submitted
an electrophotographic member with an endless shape, the electrophotographic member comprising: a cylindrical film; and a surface layer on an outer circumferential surface of the cylindrical film, wherein the cylindrical film comprises: a shrinkage rate �p in a first direction serving as a circumferential direction of the cylindrical film and a shrinkage rate �a in a second direction orthogonal to the circumferential direction, both of which are 2.0% or more; and a crystalline polyester as a binder, and roughness forming particles dispersed in the binder, the surface layer includes protruded portions caused by the roughness forming particles on an outer surface opposite to a surface facing the cylindrical film, and the cylindrical film further comprises an amorphous polyester, and the amorphous polyester extends in the first direction and the second direction around at least the roughness forming particles.