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:
Aug. 02, 1983
Filed:
Apr. 30, 1981
Applicant:
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01D / ; H04N / ;
U.S. Cl.
CPC ...
346160 ; 358293 ;
Abstract
A control system for controlling a laser beam printer in which a light-sensitive drum surface is scanned on a line base with a laser beam modulated in accordance with data to be printed. The width of scanning lines is broadened so that the adjacent scanning lines are partially superposed each other at those portions where both of the adjacent lines are to be irradiated with the laser light beam, while at those portions where at least one of the adjacent lines are not to be irradiated, the scanning line is reduced in width.