Developing apparatus

Details Developing apparatus Developing apparatus

1981-10-05

1983-10-04

Pianalto, Bernard D.

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

118656, G03G 1506

Patent

active

044072287

ABSTRACT:
A developing apparatus is used with an image forming system provided with a photosensitive layer on which a static latent image is impressed and which is formed of first and second portions having different surface potentials. The developing apparatus comprising a developing roller which is rotatably arranged and fitted with a large number of hairs for feeding a developing agent such as a toner to the surface of the photosensitive layer in contact therewith. The developing agent is attracted to the first portion of the surface of the photosensitive layer with a strong attractive force and to the second portion of the surface with a weak attractive force. The developing apparatus further comprises electrode tube for removing that portion of the developing agent which is attracted to the second portion with the weak attractive force.

REFERENCES:
patent: 4273069 (1981-06-01), Huggins et al.

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