Gas separation: apparatus – Magnetic separating means
Patent
1974-01-29
1976-08-10
Klein, David
Gas separation: apparatus
Magnetic separating means
355 10, 355 16, 427 15, G03G 1310
Patent
active
039739554
ABSTRACT:
This apparatus is disclosed for developing electrostatic latent images, comprising a developer supply unit having a first liquid repellent layer with a thickness in the range of 3 - 400.mu. (preferably 5 - 330.mu.). The first layer is disposed on a surface of a substrate, having a plurality of closely spaced pores distributed uniformly over the entire surface of the substrate and penetrating to the back surface thereof. A liquid developer is supplied to a first or back surface of this unit. A photoconductive sensitive plate is spaced closely to a front or second surface of the developer supply unit, to attract the developer to exude through the pores from the first surface of the said liquid repellent layer. More specifically, an electrostatic voltage is applied between the developer supply unit and the photoconductive sensitive plate to provide an electrostatic latent image preformed of electrostatic charges. Alternatively, a latent image could be formed by exposing the plate to light images or by the effect of pre-exposed light images on the said photoconductive sensitive plate.
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Inoue Eiichi
Ohno Genji
Hightower Judson R.
Klein David
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