摘要 |
PROBLEM TO BE SOLVED: To provide an electrophotographic device for satisfying all of image deletion due to high humidity, abrasion resistance and energy-saving property by suppressing oxidation of the surface of an electrophotographic photoreceptor. SOLUTION: In the electrophotographic device, a corona charger includes a sheet-like shielding member for shielding an opening part facing the electrophotographic photoreceptor and a mechanism for winding the shielding member, wherein the electrophotographic photoreceptor is made by successively forming a photo-conductive layer made of hydrogenated amorphous silicon and a surface layer made of hydrogenated amorphous silicon carbide at least on the surface of a base body, and the surface layer has the sum of atomic density of silicon atom and atomic density of carbon atom, of 6.60×10<SP>22</SP>atom/cm<SP>3</SP>or more and has the ratio of number of atoms of carbon atom to the sum of number of atoms of silicon atom and number of atoms of carbon atom, of 0.61 to 0.75. COPYRIGHT: (C)2011,JPO&INPIT
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