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. 10, 2023
Filed:
Dec. 14, 2021
Applicant:
Sharp Kabushiki Kaisha, Sakai, JP;
Inventors:
Hiroshi Yamamoto, Sakai, JP;
Takaharu Motoyama, Sakai, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Sakai, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 15/043 (2006.01); G02B 26/12 (2006.01); G03G 15/04 (2006.01); G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
G02B 26/12 (2013.01); G02B 26/0816 (2013.01); G03G 15/043 (2013.01); G03G 15/04036 (2013.01);
Abstract
An optical scanning device according to the present invention has a 2-beam type first laser diode and a 1-beam type second laser diode. When resolution in a sub-scanning direction is 600 dpi, exposure processing is executed by a first laser beam and a second laser beam emitted from the first laser diode. And when the resolution in the sub-scanning direction is 1200 dpi, the exposure processing is executed by the first laser beam and a third laser beam emitted from the second laser diode.