Developing apparatus

Details Developing apparatus Developing apparatus

1989-06-30

1990-10-02

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

049600702

ABSTRACT:
A developing apparatus for developing an electrostatic latent image formed on a movable image bearing member includes a rotatable developer carrying member for carrying a developer into a developing zone where an image bearing member and the developer carrying member are faced and where the electrostatic latent image on the image bearing member is developed, a magnet stationarily disposed in the developer carrying member, wherein the magnet forms in the developing zone such a magnetic field that a peak position of a magnetic flux density of the magnetic field in a direction perpendicular to a surface of the developer carrying member is in the developing zone, and wherein a magnetic confining force in the perpendicular direction in the developing zone is so distributed that it is stronger downstream of a position where the image bearing member and the developer carrying member are closest with respect to a movement direction of the image bearing member than at the closest position.

REFERENCES:
patent: 4833504 (1989-05-01), Parker et al.

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