Developing apparatus using non-magnetic spherical toner particle

Details Developing apparatus using non-magnetic spherical toner particle Developing apparatus using non-magnetic spherical toner particle

1996-07-15

1998-01-13

Ramirez, Nestor

Electrophotography

Image formation

Development

399274, G03G 1508

Patent

active

057089418

ABSTRACT:
An apparatus for developing an image by using spherical non-magnetic toner particles has a latent image carrier on which a latent image is formed by a potential contrast, a toner transporter having a surface for transporting the spherical non-magnetic toner particles to the latent image carrier, and an elastic blade having a surface for passing the spherical non-magnetic toner particles transported by the toner transporter through a gap between the surfaces of the toner transporter and elastic blade, thereby forming a thin toner layer which is charged. The toner transporter develops an electrostatic latent image on the latent image carrier with the thin toner layer which is charged. Surface roughnesses of the elastic blade and of the toner transporter are different from each other, and the spherical non-magnetic toner particles are rotated between the elastic blade and the toner transporter and charged electrostacially.

REFERENCES:
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patent: 4675266 (1987-06-01), Fujiwara
patent: 4978597 (1990-12-01), Nakahara
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patent: 5177537 (1993-01-01), Okano
patent: 5223365 (1993-06-01), Yamamoto
patent: 5570168 (1996-10-01), Koga et al.

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