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:
Nov. 12, 1991
Filed:
Oct. 23, 1990
Hiroshi Kobayashi, Hachioji, JP;
Kazuhiko Tsuboi, Hino, JP;
Atsushi Takahashi, Hino, JP;
Shigeo Maeda, Machida, JP;
Seiichi Yagi, Shiroyama, JP;
Konica Corporation, Tokyo, JP;
Abstract
A charge eliminating device for use with a photoreceptor drum. The device eliminates a charge on a required portion of the surface of a photoreceptor drum so that an electrostatic latent image is eliminated on the required portion. The device includes a circuit board for holding an electrical circuit on its surface, the circuit board having a line-shaped edge disposed to face the surface of the photoreceptor drum. A plurality of light emitting elements are disposed on the circuit board to emit light in parallel to the surface of the circuit board in the direction of the line-shaped edge of the circuit board. The device further includes a housing having a plurality of compartments each of which encloses one of the plurality of light emitting elements on the circuit board and has an opening at the line-shaped edge for passing the emitted light in parallel to the surface of the circuit board to the surface of the photoreceptor.