Electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisa
InventorsKenichi Kaku, Takashi Anezaki, Taichi Sato, Jumpei Kuno, Atsushi Fujii
Life of this patent
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Abstract
An electrophotographic photosensitive member includes a support member, an electroconductive layer, and a photosensitive layer in this order. The electroconductive layer contains a binder and particles. Each of the particles include a core made of a substance represented by general formula (1), and a coating layer coating the core and containing an electrically conductive material: M1M2O3 (1) wherein M1 represents an element selected from the group consisting of Sr, Li, Na, K, and Ba, and M2 represents an element selected from the group consisting of Ti, Nb, Ta, and Zr.
Claims10
An electrophotographic photosensitive member comprising:
- a support member;
- an electroconductive layer;
- and a photosensitive layer in this order,
- wherein the electroconductive layer contains a binder and particles, the particles each including a core made of a substance represented by general formula (1), and a coating layer coating the core and containing an electrically conductive material:
- M1M2O3 (1)
- wherein M1 represents an element selected from the group consisting of Sr, Li, Na, K, and Ba, and M2 represents an element selected from the group consisting of Ti, Nb, Ta, and Zr.
A process cartridge capable of being removably attached to an electrophotographic apparatus, the process cartridge comprising:
- an electrophotographic photosensitive member;
- and
- at least one device selected from the group consisting of a charging device, a developing device, a transfer device, and a cleaning device, the at least one device being held together with the electrophotographic photosensitive member in one body,
- wherein the electrophotographic photosensitive member includes a support member, an electroconductive layer, and a photosensitive layer in this order, the electroconductive layer containing a binder and particles, the particles each including a core made of a substance represented by general formula (1), and a coating layer coating the core and containing an electrically conductive material:
- M1M2O3 (1)
- wherein M1 represents an element selected from the group consisting of Sr, Li, Na, K, and Ba, and M2 represents an element selected from the group consisting of Ti, Nb, Ta, and Zr.
An electrophotographic apparatus comprising:
- an electrophotographic photosensitive member;
- a charging device;
- an exposure device;
- a developing device;
- and
- a transfer device,
- wherein the electrophotographic photosensitive member includes a support member, an electroconductive layer, and a photosensitive layer in this order, the electroconductive layer containing a binder and particles, the particles each including a core made of a substance represented by general formula (1), and a coating layer coating the core and containing an electrically conductive material:
- M1M2O3 (1)
- wherein M1 represents an element selected from the group consisting of Sr, Li, Na, K, and Ba, and M2 represents an element selected from the group consisting of Ti, Nb, Ta, and Zr.
Dependencies are inferred from the claim text.