Developing method and apparatus using application of first and s

Details Developing method and apparatus using application of first and s Developing method and apparatus using application of first and s

1980-02-26

1981-05-05

Welsh, John D.

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

118661, 430122, 430103, 430125, 355300, 355 3CH, G03G 1509

Patent

active

042651972

ABSTRACT:
A developing method and apparatus in which a developer supporting member is opposed to a latent image bearing member with a clearance therebetween and developer is caused to be transferred from the developer supporting member to the latent image bearing member to effect development and wherein a first and a second developing portion are provided as the developer supporting member, these effect development in the named order to complete the developing step, a first alternating bias for causing the developer to be transferred so as to mainly develop the image end portion of the latent image is imparted to the first developing portion, and a second alternating bias for causing the developer to be transferred so as to mainly effect the development for reproducing the tone of the latent image is imparted to the second developing portion.

REFERENCES:
patent: 4174903 (1979-11-01), Snelling

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