Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsMasato Tanaka, Kouichi Nakata
Life of this patent
Estimating the term…
Abstract
An electrophotographic photosensitive member comprising a support and a photosensitive layer. The photosensitive layer contains an oxytitanium phthalocyanine having the strongest peak at 27.2°±0.2° of the diffraction angle (2θ) in CuKα characteristic X-ray diffraction and a hydroxygallium phthalocyanine having strong peaks at 7.4°±0.2° and 28.2°±0.2° of the diffraction angle (2θ) in CuKα characteristic X-ray diffraction. A process cartridge and an electrophotographic apparatus, employing the electrophotographic photosensitive member, are also disclosed.
Claims6
An electrophotographic photosensitive member comprising a support and a photosensitive layer provided on the support, said photosensitive layer containing an oxytitanium phthalocyanine having the strongest peak at 27.2°±0.2° of the diffraction angle (2θ) in CuKα characteristic X-ray diffraction and a hydroxygallium phthalocyanine having strong peaks at 7.4°±0.2° and 28.2°±0.2° of the diffraction angle (2θ) in CuKα characteristic X-ray diffraction, wherein said oxytitanium phthalocyanine has strong peaks at 9.0°, 14.2°, 23.9°, and 27.1° of the diffraction angle (2θ±0.2°) in CuKα characteristic X-ray diffraction.
A process cartridge comprising an electrophotographic photosensitive member and a means selected from the group consisting of a charging means, a developing means and a cleaning means;
- said electrophotographic photosensitive member and at least one of said means being supported as one unit and being detachably mountable to the main body of an electrophotographic apparatus;
- and
- said electrophotographic photosensitive member comprising a support and a photosensitive layer provided on the support, said photosensitive layer containing an oxytitanium phthalocyanine having the strongest peak at 27.2°±0.2° of the diffraction angle (2θ) in CuKα characteristic X-ray diffraction and a hydroxygallium phthalocyanine having strong peaks at 7.4°±0.2° and 28.2°±0.2° of the diffraction angle (2θ) in CuKα characteristic X-ray diffraction, wherein said oxytitanium phthalocyanine has strong peaks at 9.0°, 14.2°, 23.9° and 27.1° of the diffraction angle (2θ±0.2°) in CuKα characteristic X-ray diffraction.
An electrophotographic apparatus comprising an electrophotographic photosensitive member, a charging means, an exposure means, a developing means and a transfer means;
- and
- said electrophotographic photosensitive member comprising a support and a photosensitive layer provided on the support, said photosensitive layer containing an oxytitanium phthalocyanine having the strongest peak at 27.2°±0.2° of the diffraction angle (2θ) in CuKα characteristic X-ray diffraction and a hydroxygallium phthalocyanine having strong peaks at 7.4°±0.2° and 28.2°±0.2° of the diffraction angle (2θ) in CuKα characteristic X-ray diffraction, wherein said oxytitanium phthalocyanine has strong peaks at 9.0°, 14.2°, 23.9° and 27.1° of the diffraction angle (2θ±0.2°) in CuKα characteristic X-ray diffraction.
Dependencies are inferred from the claim text.