Image holding member and image forming device

Details Image holding member and image forming device Image holding member and image forming device

1989-09-18

1990-07-24

Griffin, Donald A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

430 97, G03G 1322, G03G 504

Patent

active

049438190

ABSTRACT:
The present invention is an image holding member for holding particulate dry process developer by electrical adsorption force, having from the side holding the dry process developer, a dielectric layer, a diffusion reflection layer having reflective fine particles dispersed in a resin and an electroconductive layer. The electrical resistance of the diffusion reflection layer is made smaller than that of the dielectric layer, and/or the ten-point average roughness of the dielectric layer is made 0.1 .mu.m to 5.0 .mu.m. Also, it is an image forming device by use of the above image holding member, having from the side holding the dry process developer, the above image holding member, driving means for the image holding member, recording electrodes arranged in the direction crossing the moving direction of the image holding member and electrically insulated from each other, means for feeding an electroconductive developer between the image holding member and the recording electrodes, and means for applying electrical signals to the recording electrodes.

REFERENCES:
patent: 4259425 (1981-03-01), Serlin
patent: 4374895 (1983-02-01), Yasuda et al.
patent: 4547787 (1985-10-01), Kaneko et al.
patent: 4693951 (1987-09-01), Takasu et al.

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