Electrostatic developing method

Details Electrostatic developing method Electrostatic developing method

1975-08-13

1977-11-15

Gwinnell, Harry J.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

96 1LY, 118644, G03G 1310

Patent

active

040586375

ABSTRACT:
Method is disclosed for developing electrostatic latent images, utilizing a developer supply unit formed of a liquid repellent layer having a thickness in the range of 3.mu. to 400.mu. (preferably 5.mu. to 330.mu.), and a substrate, and having uniformly distributed pores disposed therethrough. A liquid developer is supplied to the back surface of this unit, and an exposing unit is disposed to form electrostatic latent images onto the front surface of the developer supply unit. As a result, the liquid developer applied to the back surface of the liquid repellent layer is distributed on the front surface by the action of the electric field established by the latent image.

REFERENCES:
patent: 3096198 (1963-07-01), Schaffert
patent: 3220833 (1965-11-01), McFarlane
patent: 3472676 (1969-10-01), Cassiers et al.
patent: 3486922 (1969-12-01), Cassiers et al.
patent: 3561358 (1971-02-01), Weigl
patent: 3727758 (1973-04-01), Saito et al.
patent: 3743408 (1973-07-01), Ohno
patent: 3801315 (1974-04-01), Gundlach et al.
patent: 3894512 (1975-07-01), Ohno

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