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:
Oct. 26, 2010
Filed:
Jan. 22, 2009
Toru Kikuchi, Ibaraki, JP;
Toru Kikuchi, Ibaraki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A disclosed laser light intensity control device includes a semiconductor laser configured to scan a photoconductor by emitting laser beams and form an electrostatic latent image, a temperature detection circuit configured to detect a temperature of the semiconductor laser, a light intensity detection circuit configured to detect a light intensity of the laser beams emitted from the semiconductor laser, a first drive circuit configured to supply the semiconductor laser with a first current that drives the semiconductor laser, a second drive circuit configured to supply the semiconductor laser with a second current that is superimposed on the first current, and a control circuit configured to control the first drive circuit and the second drive circuit.