Developing apparatus for electrostatic image

Details Developing apparatus for electrostatic image Developing apparatus for electrostatic image

1982-01-18

1983-06-14

Pianalto, Bernard D.

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

043876641

ABSTRACT:
A developing device for electrophotography includes a developer supporter faced to an image bearing member with a constant space maintained therebetween, a developer supply a magnetic field generator for generating a fixed magnetic field and a magnetic element provided within the magnetic field generated by the generator and in the vicinity of the developer supporter to limit the thickness of developer which is rendered erect by the magnetic field. The element is effective to limit the thickness of developer supported on the supporter to a value not causing contact of the developer with the non-imaged area on the image bearing member.

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