The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 17, 1977
Filed:
May. 30, 1975
Genji Ohno, Yokohama, JA;
Eiichi Inoue, Tokyo, JA;
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.