Electrophotographic photoreceptor, process cartridge, and image forming apparatus
AssigneeFUJIFILM Business Innovation Corp.
InventorsMasahiro Iwasaki, Wataru Yamada, Keisuke Kusano, Yuto Okazaki, Taisuke Fukui
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Abstract
An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer on the conductive substrate. The outermost surface layer of the electrophotographic photoreceptor contains fluorine-containing resin particles, a fluorine graft polymer, and an acidic compound having an acid dissociation constant (pKa) of 3 or less in water at 25° C. The amount of the acidic compound relative to the outermost surface layer is 100 ppm or more and 10000 ppm or less.
Claims11
An electrophotographic photoreceptor comprising:
- a conductive substrate;
- and
- a photosensitive layer on the conductive substrate,
- wherein:
- an outermost surface layer of the electrophotographic photoreceptor contains fluorine-containing resin particles, a fluorine graft polymer, and an acidic compound having an acid dissociation constant (pKa) of 3 or less in water at 25° C.,
- an amount of the acidic compound relative to the outermost surface layer is 150 ppm or more and 10000 ppm or less,
- the fluorine-containing resin particles contain 0 or more and 30 or less carboxyl groups per 106 carbon atoms, and 0 ppm or more and 3 ppm or less of a basic compound, and
- the acidic compound is a carboxylic acid compound having 2 to 4 carboxyl groups.
An electrophotographic photoreceptor comprising:
- a conductive substrate;
- and
- a photosensitive layer on the conductive substrate,
- wherein:
- an outermost surface layer of the electrophotographic photoreceptor contains fluorine-containing resin particles, a fluorine graft polymer, and a carboxylic acid compound having 2 or more and 4 or less carboxyl groups,
- an amount of the carboxylic acid compound having 2 or more and 4 or less carboxyl groups relative to the outermost surface layer is 150 ppm or more and 10000 ppm or less, and
- the fluorine-containing resin particles contain 0 or more and 30 or less carboxyl groups per 106 carbon atoms, and 0 ppm or more and 3 ppm or less of a basic compound.
Dependencies are inferred from the claim text.