Organic photoreceptor, process cartridge, image forming method, and image forming apparatus
AssigneeKonica Minolta Business Technologies, Inc.
InventorsHirofumi Hayata, Masao Asano, Kazuhisa Shida, Kunihiro Ogura
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Abstract
Disclosed is an organic photoreceptor possessing a photosensitive layer having a surface layer, provided on a conductive support, wherein the surface layer of the organic photoreceptor contains a block copolymer composed of a matrix component and a low surface energy component, and possesses a sea/island structure having domains formed by aggregating the low surface energy component in the block copolymer, and also disclosed are a process cartridge, an image forming method and an image forming apparatus, employing the foregoing organic photoreceptor.
Claims14
An organic photoreceptor comprising a photosensitive layer having a surface layer, provided on or over a conductive support,
- wherein the surface layer of the organic photoreceptor contains a block copolymer comprising a matrix component (component A) and a low surface energy component (component B), and comprises a sea/island structure having domains formed by aggregating the low surface energy component in the block copolymer, and
- wherein the low surface energy component is polysiloxane and a number average molecular weight of the polysiloxane is in a range of 200-20000.
A process cartridge employed for an image forming apparatus comprising an organic photoreceptor, and at least one section of a charging section to charge the organic photoreceptor, a latent image forming section to form an electrostatic latent image on the charged organic photoreceptor, a developing section to visualize the electrostatic latent image to form a toner image, a transfer section to transfer the toner image onto a transfer medium from the organic photoreceptor, a discharging section to eliminate charges remaining on the organic photoreceptor after transferring the toner image, and a cleaning section to remove toner remaining on the organic photoreceptor after transferring the toner image,
- wherein the organic photoreceptor in which a surface layer of the organic photoreceptor contains a block copolymer comprising a matrix component (component A) and a low surface energy component (component B), and comprises a sea/island structure having domains formed by aggregating the low surface energy component in the block copolymer, and
- wherein the low surface energy component is polysiloxane and a number average molecular weight of the polysiloxane is in a range of 200-20000;
- and at least one section are supported in a cartridge housing as one body capable of being mounted detachably in an image forming apparatus.
An image forming apparatus comprising an organic photoreceptor, and at least one section of a charging section to charge the organic photoreceptor, a latent image forming section to form an electrostatic latent image on the charged organic photoreceptor, a developing section to visualize the electrostatic latent image to form a toner image, a transfer section to transfer the toner image onto a transfer medium from the organic photoreceptor, a discharging section to eliminate charges remaining on the organic photoreceptor after transferring the toner image, and a cleaning section to remove toner remaining on the organic photoreceptor after transferring the toner image,
- wherein employed is the organic photoreceptor in which a surface layer of the organic photoreceptor contains a block copolymer comprising a matrix component (component A) and a low surface energy component (component B), and comprises a sea/island structure having domains formed by aggregating the low surface energy component in the block copolymer,
- wherein the low surface energy component is polysiloxane and a number average molecular weight of the polysiloxane is in a range of 200-20000.
Dependencies are inferred from the claim text.