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:
Sep. 11, 1990
Filed:
Aug. 02, 1989
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
In an electrostatic latent image forming apparatus used in a printer, a facsimile machine or the like, there is added an insulating member between the conventional screen electrode and the latent image bearing body to allow the derived-ion beam to be squeezed down and the separation from the latent image bearing body to be reduced without the danger of a damaging discharge toward that body. The control area provided in apertures of the additional insulating member enables control of the direction of the derived ions so that the squeezing yields improved resolution and efficiency for high-density recording. The position of the additional insulating member is sufficient to inhibit damaging discharge, even when the screen electrode and latent image bearing body are very close to each other.