Developing device

Details Developing device Developing device

1975-10-07

1977-06-21

Jaudon, Henry S.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

355 3DD, G03G 1509

Patent

active

040304477

ABSTRACT:
This specification discloses a device for developing electrostatic latent images by the use of developer. The device includes a photosensitive medium bearing electrostatic latent images on the surface thereof to be developed, a container for containing therein magnetic carrier and toner, a permanent magnet fixedly mounted within the container, and a non-magnetic sleeve enclosing the magnet and rotatably mounted in the container for transporting the developer from the container to the latent image bearing surface. The permanent magnet has poles of identical polarity disposed adjacent to each other at positions opposed to the latent image bearing surface. Thus, development can be effected in the developing station by utilization of repelling magnetic fields produced by the poles of identical polarity.

REFERENCES:
patent: 3828730 (1974-08-01), Yamashita et al.
patent: 3900001 (1975-08-01), Fraser et al.
patent: 3939801 (1976-02-01), Tanaka et al.

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