Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsMasashi Nishi, Kunihiko Sekido
Life of this patent
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Abstract
Provided is an electrophotographic photosensitive member including an electroconductive support, a photosensitive layer, and a protection layer, wherein the protection layer contains electroconductive particles, a content of the electroconductive particles in the protection layer is 40 to 70 vol %, and a volume resistivity of the protection layer is 1.0×109 to 1.0×1014 Ω·cm.
Claims7
An electrophotographic photosensitive member, comprising:
- an electroconductive support;
- a photosensitive layer;
- and
- a protection layer, the protection layer comprising niobium-containing titanium oxide electroconductive particles, wherein
- a content of the electroconductive particles in the protection layer is 40 to 70 vol %, and
- a volume resistivity of the protection layer is 1.0×109 to 1.0×1014 Ω·cm.
A process cartridge integrally supporting an electrophotographic photosensitive member and at least one unit selected from the group consisting of a charging unit, a developing unit and a cleaning unit, and being detachably attachable to a main body of an electrophotographic apparatus, the electrophotographic photosensitive member comprising:
- an electroconductive support;
- a photosensitive layer;
- and
- a protection layer, the protection layer comprising niobium-containing titanium oxide electroconductive particles, wherein
- a content of the electroconductive particles in the protection layer is 40 to 70 vol %, and
- a volume resistivity of the protection layer is 1.0×109 to 1.0×1014 Ω·cm.
An electrophotographic apparatus, comprising:
- an electrophotographic photosensitive member comprising an electroconductive support, a photosensitive layer, and a protection layer comprising niobium-containing titanium oxide electroconductive particles,
- a charging unit;
- an exposing unit;
- a developing unit;
- and
- a transfer unit, wherein
- a content of the electroconductive particles in the protection layer is 40 to 70 vol %, and
- a volume resistivity of the protection layer is 1.0×109 to 1.0×1014 Ω·cm.
Dependencies are inferred from the claim text.