Electrophotographic apparatus performing image exposure and development simultaneously
AssigneeCanon Kabushiki Kaisha
InventorsTadashi Furuya, Junji Araya, Hideyuki Yano, Harumi Kugo, Osamu Iwasaki
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Abstract
An electrophotographic apparatus which simultaneously performs image exposure and development, including an electrophotographic photosensitive body having a conductive layer, an electrophotoconductive layer, and an electric charge supply layer for contacting a developer sequentially formed on a translucent substrate, wherein a value of the surface energy of the outer layer of the photosensitive body is 30 dyne/cm or less in order to present fogging generated during development.
Claims14
A charging system for an electrophotographic photosensitive member, comprising:
- a rotatable electrophotographic photosensitive member including a conductive substrate and an electrophotographic photosensitive layer disposed thereon, a surface energy of a surface layer at a side of the photosensitive layer being equal to or less than 30 dyne/cm;
- and
- a rotatable conductive brush rotating at a speed faster than that of said photosensitive member and formed by conductive magnetic particles, and to which a bias voltage is applied for charging said photosensitive member, by scrubbing the surface layer of said photosensitive member.
A charging system for an electrophotographic photosensitive member, comprising:
- a rotatable electrophotographic photosensitive member including a conductive substrate and an OPC photosensitive layer disposed thereon, a surface layer of the OPC photosensitive layer being formed by dispersing a fluoride resin and conductive particles into a binder, and a surface energy of the surface layer at a side of the photosensitive layer being equal to or less than 30 dyne/cm;
- and
- a rotatable conductive brush rotating at a speed faster than that of said photosensitive member and formed by conductive magnetic particles, and to which a bias voltage for charging said photosensitive member is applied by scrubbing the surface layer of said photosensitive member.
An electrophotographic apparatus, comprising:
- a rotatable electrophotographic photosensitive member including a conductive substrate and an electrophotographic photosensitive layer disposed thereon, a surface energy of a surface layer at a side of the photosensitive layer being equal to or less than 30 dyne/cm;
- a conductive brush rotating at a speed faster than that of said photosensitive member and formed by conductive magnetic particles, and to which a bias voltage for charging said photosensitive member is applied, for scrubbing the surface layer thereof;
- optical means for irradiating optical information onto said photosensitive member after charging by said conductive brush;
- and
- toner applying means for applying a toner to said photosensitive member from a side of said conductive brush for developing an image corresponding to the optical information.
Dependencies are inferred from the claim text.