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. 28, 1992
Filed:
Jan. 30, 1990
Applicant:
Inventor:
Takashi Mama, Kawasaki, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
346108 ; 359212 ;
Abstract
A light beam scanning apparatus includes a laser light source emitting a laser beam, an optical system focusing the laser beam emitted from the laser light source onto a rotating photosensitive drum, a beam scan mechanism moving the point of focus of laser beam on the photosensitive drum, in a direction perpendicular to the direction of main scan, a scan line correction mechanism correcting a scan line to a straight line when the scan line is curved.