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. 08, 1983
Filed:
Sep. 17, 1981
Applicant:
Inventors:
Mitsuo Ohno, Hadano, JP;
Kikuo Hatazawa, Atsugi, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D / ;
U.S. Cl.
CPC ...
346160 ;
Abstract
A laser beam printer using a film, in which a fixed form of format information such as a ruled line is printed off, and having a format overlay function is disclosed in which a photosensitive drum is line-scanned by a laser beam having been modulated in accordance with print information and having passed through the film, the film is moved in synchronism with the rotation of the photosensitive drum, and thus a latent image is formed on the photosensitive drum in a manner that the format information in the film is superposed on the print information for modulating the laser beam.