Magnetic brush developing apparatus

Details Magnetic brush developing apparatus Magnetic brush developing apparatus

1994-06-03

1995-06-13

Moses, R. L.

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

355251, G03G 1509

Patent

active

054244897

ABSTRACT:
A magnetic brush developing apparatus includes a development container containing a developer. A magnet is stationarily located in the development container and has magnetic poles radially provided on a plurality of points. A rotational sleeve is arranged to cover the outer circumference of the magnet and is rotatably driven to carry the developer in the development container. A blade is arranged opposite to the rotational sleeve to restrict the amount of the developer which is carried by the rotational sleeve. To obtain a uniform image quality without unevenness among different developing apparatus and a wider range of assembling precision to thus facilitate the installment of the apparatus, at a position facing the developer restriction member, and in its vicinity, there is formed a uniform magnetic flux density section having a magnetic flux density whose vertical component is substantially uniform on the periphery of the rotational sleeve.

REFERENCES:
patent: 4492456 (1985-01-01), Haneda et al.
patent: 4825241 (1989-04-01), Saijo et al.
patent: 4844008 (1989-07-01), Sakemi et al.
patent: 4851872 (1989-07-01), Murasaki et al.
patent: 4960070 (1990-10-01), Nishimura

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