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:
Mar. 13, 1979
Filed:
May. 13, 1977
Applicant:
Inventors:
Neil R Davie, Larimer County, CO (US);
Joseph C Lambiotte, Boulder County, CO (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346160 ; 355 14 ; 346108 ;
Abstract
In a xerographic printer wherein an acousto-optic modulator is used to derive a deflected first order beam of electromagnetic power which raster scans a charged photoconductor to leave a selectively discharged latent image area bordered by a discharged border area; power contents of said first order beam is maintained constant by adjusting the efficiency of the acousto-optic modulator with a closed loop electrical control system. The efficiency of the acousto-optic modulator is adjusted only when the beam is scanning the border area of the photoconductor.