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. 31, 2017
Filed:
May. 27, 2015
Applicants:
Mitsuo Suzuki, Kanagawa, JP;
Kohji Sakai, Tokyo, JP;
Inventors:
Mitsuo Suzuki, Kanagawa, JP;
Kohji Sakai, Tokyo, JP;
Assignee:
RICOH COMPANY, LTD., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/45 (2006.01); B41J 2/47 (2006.01); G02B 26/12 (2006.01); G03G 15/04 (2006.01); G03G 15/043 (2006.01);
U.S. Cl.
CPC ...
G02B 26/127 (2013.01); B41J 2/45 (2013.01); B41J 2/473 (2013.01); G02B 26/12 (2013.01); G02B 26/123 (2013.01); G03G 15/0435 (2013.01); G03G 15/04072 (2013.01); B41J 2002/453 (2013.01);
Abstract
An optical scanning device includes: a light source that emits a laser beam modulated and driven according to an image forming signal; a scanning optical system that includes a polygon mirror to scan a surface of a photoconductor with the laser beam from the light source; a surface identifying unit that associates a sub-scanning position by the polygon mirror with each surface of the polygon mirror; and a light-amount adjusting unit that adjusts a light amount of the light source according to the sub-scanning position, for each surface of the polygon mirror.