IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
First Claim
1. An image forming apparatus comprising:
- an image holding member that is rotationally driven, the image holding member comprising, on a substrate, a subbing layer and a photosensitive layer, a volume resistance value of the subbing layer decreasing in a rotation axis direction of the image holding member, from one end portion of a light source side of the image holding member towards another end portion of the image holding member;
a charging unit that charges a surface of the image holding member;
a latent image formation unit that forms an electrostatic latent image on the image holding member by exposing to light the surface of the image holding member that has been charged by the charging unit;
a developing unit that forms a toner image corresponding to the electrostatic latent image on the image holding member by developing the electrostatic latent image with a toner;
a transfer unit that transfers the toner image onto an image receiving member; and
a charge removal unit comprising a light source that, after transfer of the toner image, irradiates the surface of the image holding member from one side thereof, in a rotation axis direction of the image holding member, with charge removing light, to remove the charge from the surface of the image holding member.
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Accused Products
Abstract
An image forming apparatus comprising an image holding member that is rotationally driven, the image holding member comprising, on a substrate, a subbing layer and a photosensitive layer, a volume resistance value of the subbing layer decreasing in a rotation axis direction of the image holding member, from one end portion of a light source side of the image holding member towards another end portion of the image holding member, a charging unit, a latent image formation unit, a developing unit, a transfer unit, and a charge removal unit comprising a light source that, after transfer of the toner image, irradiates the surface of the image holding member from one side thereof, in a rotation axis direction of the image holding member, with charge removing light, to remove the charge from the surface of the image holding member.
30 Citations
18 Claims
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1. An image forming apparatus comprising:
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an image holding member that is rotationally driven, the image holding member comprising, on a substrate, a subbing layer and a photosensitive layer, a volume resistance value of the subbing layer decreasing in a rotation axis direction of the image holding member, from one end portion of a light source side of the image holding member towards another end portion of the image holding member; a charging unit that charges a surface of the image holding member; a latent image formation unit that forms an electrostatic latent image on the image holding member by exposing to light the surface of the image holding member that has been charged by the charging unit; a developing unit that forms a toner image corresponding to the electrostatic latent image on the image holding member by developing the electrostatic latent image with a toner; a transfer unit that transfers the toner image onto an image receiving member; and a charge removal unit comprising a light source that, after transfer of the toner image, irradiates the surface of the image holding member from one side thereof, in a rotation axis direction of the image holding member, with charge removing light, to remove the charge from the surface of the image holding member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process cartridge comprising:
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an image holding member that is rotationally driven, the image holding member comprising, on a substrate, a subbing layer and a photosensitive layer, a volume resistance value of the subbing layer decreasing in a rotation axis direction of the image holding member, from one end portion of the light source side of the image holding member towards another end portion of the image holding member; at least one selected from the group consisting of a charging unit that charges a surface of the image holding member, a latent image formation unit that forms an electrostatic latent image on the image holding member by exposing to light the surface of the image holding member that has been charged by the charging unit, a developing unit that forms a toner image corresponding to the electrostatic latent image on the image holding member by developing the electrostatic latent image with a toner, and a toner removal unit that removes the toner remaining on the surface of the image holding member; and a charge removal unit comprising a light source that, after transfer of the toner image, irradiates the surface of the image holding member from one side thereof, in a rotation axis direction of the image holding member, with charge removing light, to remove the charge from the surface of the image holding member. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification