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. 11, 1980
Filed:
Feb. 21, 1979
Edwin F Glab, Fairport, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
Briefly, the present invention is concerned with a low inertia scanning system for projecting an image of a stationary object on a flat platen onto a rotating photoreceptor drum. An aperture plate located adjacent the photoreceptor drum moves in a direction opposite the direction of the drum. A carriage disposed between a stationary lens and the photoreceptor drum supports a pair of mirrors. The light image is projected from the lens to one of the pair of mirrors for reflection to the second mirror rotating about a pivot point to scan the image through the aperture onto the photoreceptor drum. During scanning of the platen, the carriage moves in a linear direction toward and away from the photoreceptor drum and together with the rotation of the second mirror maintains a constant magnification ratio. A second pair of mirrors disposed between the platen and the lens is adapted for movement in a linear direction with respect to the flat platen to predetermined positions in cooperation with the shifting of the lens to provide a properly focused light image in a different magnification range.