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:
Jan. 30, 1979
Filed:
Dec. 12, 1977
Fujitsu Limited, , JP;
Abstract
An electrostatic transfer process and apparatus for transferring an image comprised of letters, symbols and patterns onto a sheet of plain recording paper from an electrostatic latent image forming material comprised of a conductive substrate and an insulating layer formed on the substrate. The insulating layer surface of the electrostatic latent image forming material is uniformly charged with electrostatic charges. The charges of only image forming areas of the insulating layer surface are subsequently erased so that an electrostatic latent image is formed in the image forming areas. Thereafter, the electrostatic latent image forming material moves past a developing electrode to which is applied a voltage of the same polarity as that of the charges applied to the insulating layer of the electrostatic latent image forming material. Simultaneously, a developer having a charge of the same polarity as that of the voltage applied to the developing electrode is supplied to the image forming areas of the insulating layer surface to allow the developer to adhere to the area wherein the charges have been removed or diminished. Thus, the latent image is visualized. The resultant visualized image is transferred onto a sheet of plain paper for obtaining a clear recorded image.