Extended NIP development apparatus having a transport assist mag

Details Extended NIP development apparatus having a transport assist mag Extended NIP development apparatus having a transport assist mag

1991-06-24

1992-01-14

Grimley, A. T.

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

355251, 430122, G03G 1509

Patent

active

050800388

ABSTRACT:
A development apparatus for developing latent images on an image-bearing surface includes a magnetic core generating a first magnetic field, a non-magnetic shell surrounding and spaced from the magnetic core, and a transport assist magnet mounted at a desired spot between the non-magnetic shell and the magnetic core. The transport assist magnet generates a second magnetic field at and about the desired spot thereby creating a magnetic field strength gradient thereabout for assisting the magnetic transportation of magnetic developer material over the surface of the non-magnetic shell.

REFERENCES:
patent: 4235549 (1980-11-01), Eisbein et al.
patent: 4287850 (1981-09-01), Yamamoto et al.
patent: 4638759 (1987-01-01), Ville et al.
patent: 4707107 (1987-11-01), Joseph
patent: 4838200 (1989-06-01), Hosoi et al.
patent: 4928145 (1990-05-01), Okamoto et al.

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