Developing apparatus

Details Developing apparatus Developing apparatus

1998-04-15

2000-11-21

Grimley, Arthur T.

Electrophotography

Internal machine environment

Particle or contaminant control

399106, G03G 1508

Patent

active

061514675

ABSTRACT:
A developing apparatus includes a developer container, having an opening, for containing a magnetic developer; developer carrying member, provided in the opening, for carrying a developer, the developer carrying member having therein magnetic field generating means for carrying the magnetic developer; a sealing magnet for forming a magnetic seal for preventing leakage of the developer at an end portion, wherein an outer end portion of the sealing magnet with respect to a longitudinal direction of the developer carrying member is disposed in a region where a magnetic flux density at a surface of the developer carrying member attenuates.

REFERENCES:
patent: 5187326 (1993-02-01), Shirai
patent: 5287148 (1994-02-01), Sakemi et al.
patent: 5682585 (1997-10-01), Yamaguichi et al.
patent: 5781835 (1998-07-01), Okano et al.
patent: 5790923 (1998-08-01), Oguma et al.

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