Back to results
US 5,455,135 AGranted
Electrophotographic photosensitive member with overlayer and electrophotographic apparatus employing same
AssigneeCanon Kabushiki Kaisha
InventorsAkio Maruyama, Kazushige Nakamura, Shoji Amamiya, Shin Nagahara, Haruyuki Tsuji, Masaaki Yamagami, Michiyo Sekiya
Life of this patent
Estimating the term…
Abstract
An electrophotographic photosensitive member includes an electroconductive substrate, a photosensitive layer disposed on the electroconductive substrate, and a protective layer disposed on the photosensitive layer, the protective layer containing a resin formed by polymerization of compounds each having two or more ion polymerizable functional groups, and electroconductive particles.
Claims18
An electrophotographic photosensitive member comprising:
- an electroconductive substrate;
- a photosensitive layer disposed on said electroconductive substrate;
- and
- a protective layer disposed on said photosensitive layer,
- said protective layer containing a resin formed by ionic polymerization of compounds each having two or more ionic polymerizable functional groups, and electroconductive particles.
2 more elements
An electrophotographic photosensitive apparatus, comprising:
- an electrophotographic photosensitive member;
- means for forming an electrostatic latent image on said photosensitive member;
- means for developing the formed electrostatic latent image;
- and
- means for transferring a developed image to a transfer medium,
- said electrophotographic photosensitive member comprising an electroconductive substrate, a photosensitive layer disposed on said electroconductive substrate, and a protective layer disposed on said photosensitive layer,
- said protective layer containing a resin formed by ionic polymerization of compounds each having two or more ionic polymerizable functional groups, and electroconductive particles.
4 more elements
A device unit comprising:
- an electrophotographic photosensitive member and at least one means selected from a group consisting of charging means, developing means and cleaning means,
- said electrophotographic photosensitive member comprising an electroconductive substrate, a photosensitive layer disposed on said electroconductive substrate and a protective layer disposed on said photosensitive layer,
- said protective layer containing a resin formed by ionic polymerization of compounds each having two or more ionic polymerizable functional groups, and electroconductive particles,
- said unit integrally supporting said electrophotographic photosensitive member and at least one means selected from the group consisting of said charging means, said developing means and said cleaning means, and
- said unit being made attachable/detachable to and from an apparatus body.
2 more elements
Dependencies are inferred from the claim text.