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US 6,661,442 B2Granted
Image forming apparatus having writing electrodes for forming an electrostatic latent image
AssigneeSeiko Epson Corporation
InventorsYoshiro Koga, Shinichi Kamoshida, Kaneo Yoda, Nobumasa Abe, Yujiro Nomura
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Abstract
In an image forming apparatus, a resistant layer of each writing electrode is formed substantially in a semi-circular convex shape projecting upwardly. The top of the resistant layer is a spherical surface so that the resistant layer is in point contact with the charged layer of the latent image carrier. Because of point contacts, foreign matters adhering to the surface of the latent image carrier are easily allowed to pass, thereby preventing the occurrence of filming on the surface of the latent image carrier.
Claims5
An image forming apparatus comprising at least:
- a latent image carrier on which an electrostatic latent image is formed, a writing device for writing said electrostatic latent image on said latent image carrier, and a developing device for developing said electrostatic latent image on the latent image carrier, wherein said electrostatic latent image, written on said latent image carrier by said writing device, is developed by said developing device, thereby forming an image, said image forming apparatus being characterized in
- that writing electrodes of said writing device are in contact with a charged layer of said latent image carrier through microscopic particles interposed therebetween, thereby writing said electrostatic latent image.
Dependencies are inferred from the claim text.