Xerographic machine with infinitely variable developer bias

Details Xerographic machine with infinitely variable developer bias Xerographic machine with infinitely variable developer bias

1977-08-30

1979-04-17

Schroeder, Werner H.

Coating apparatus

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

With electromagnetic and/or electrostatic removal of...

118647, G03G 1509

Patent

active

041494873

ABSTRACT:
A reproduction machine for producing copies incorporating a control for varying, infinitely over a given range copy shading. The control operates to change the fixed bias potential applied to the magnetic brush type developing rolls by providing through a variable voltage circuit, varying biasing potentials.

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IBM Technical Disclosure Bulletin, Schaffert "Development of Electrostatic Images", vol. 1, No. 3, Oct. 1958, p. 6.

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