Electrophotographic photosensitive member, process cartridge and electrophotographic apparatus
AssigneeCanon Kabushiki Kaisha
InventorsAkira Sakakibara, Yuka Ishiduka, Daisuke Miura, Tsutomu Nishida, Fumiyuki Hiyama
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Abstract
An electrophotographic photosensitive member includes a surface layer. The surface layer comprises a polycarbonate resin (α) and a polycarbonate resin (β). The polycarbonate resin (α) has a structural unit represented by a following formula (A) described herein and a structural unit represented by a following formula (B) described herein. The polycarbonate resin (β) has a structure having a dimethylsiloxane moiety.
Claims10
An electrophotographic photosensitive member comprising a surface layer,
- wherein the surface layer comprises a polycarbonate resin (α) and a polycarbonate resin (β),
- wherein the polycarbonate resin (α) has a structural unit represented by a following formula (A) and a structural unit represented by a following formula (B), and
- wherein the polycarbonate resin (β) has a structure having a dimethylsiloxane moiety.
A process cartridge which integrally supports an electrophotographic photosensitive member and a developing unit and which is detachably attachable to a main body of an electrophotographic apparatus,
- wherein the electrophotographic photosensitive member comprises a surface layer, the surface layer comprises a polycarbonate resin (α) and a polycarbonate resin (β), the polycarbonate resin (α) has a structural unit represented by the following formula (A) and a structural unit represented by the following formula (B) and the polycarbonate resin (β) has a structure having a dimethylsiloxane moiety, and
- wherein the developing unit collects residual toner remaining on the electrophotographic photosensitive member after a toner image is transferred from the electrophotographic photosensitive member onto a transfer material.
An electrophotographic apparatus comprising an electrophotographic photosensitive member, a charging unit, an exposure unit, a developing unit and a transfer unit,
- wherein the electrophotographic photosensitive member comprises a surface layer, the surface layer comprises a polycarbonate resin (α) and a polycarbonate resin (β), the polycarbonate resin (α) has a structural unit represented by the following formula (A) and a structural unit represented by the following formula (B) and the polycarbonate resin (β) has a structure having a dimethylsiloxane moiety, and
- wherein the developing unit collects residual toner remaining on the electrophotographic photosensitive member after a toner image is transferred from the electrophotographic photosensitive member onto a transfer material.
Dependencies are inferred from the claim text.