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US 7,022,450 B2Granted
Image forming method and image forming apparatus
AssigneeKonica Corporation
InventorsMasao Asano, Hiroshi Yamazaki, Shigeki Takenouchi, Akihiko Itami, Satoshi Uchino
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Abstract
An electrophotographic image forming method is disclosed. A latent image on a photoreceptor is developed to form a toner image on the photoreceptor by a developer and the toner image is transferred to a recording material or an intermediate transfer element, and the developing and the transferring are performed while regulating a contact angle of the photoreceptor with water within ±5° of an average contact angle by applying a surface energy-lowering agent on the surface of the photoreceptor.
Claims19
An image forming method comprising:
- developing a latent image on a photoreceptor to form a toner image on the photoreceptor by a developer comprising a toner;
- and
- transferring the toner image onto a recording material or an intermediate transfer element by a transfer device,
- wherein the developing and the transferring are performed while regulating a contact angle of the photoreceptor with water within ±50° of an average contact angle by applying a surface energy-lowering agent on the surface of the photoreceptor, the surface energy-lowering agent comprises a metal salt of a fatty acid, and water content of the surface energy-lowering agent is not more than 5.0 weight % based on the surface energy-lowering agent.
1 more element
An image forming method comprising:
- developing a latent image on a photoreceptor to form a toner image on the photoreceptor by a developer comprising a toner;
- and
- transferring the toner image onto a recording material or an intermediate transfer element by a transfer device,
- wherein the developing and the transferring are performed while regulating a contact angle of the photoreceptor with water within ±5° of an average contact angle by applying a surface energy-lowering agent on the surface of the photoreceptor through a brush roll, the surface energy-lowering agent comprises a metal salt of a fatty acid, and water content of the surface energy-lowering agent is not more than 5.0 weight % based on the surface energy-lowering agent, the brush roll rotates so that portion contact to the photoreceptor moves in the same direction as the surface of the photoreceptor and a ratio of the surface velocity of the brush roll to that of the photoreceptor is between 1.1 and 2.
1 more element
Dependencies are inferred from the claim text.