Patent Number: 7,822,083

Title: Laser light intensity control device, laser light intensity control method, and image forming apparatus

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.

Inventors: Kikuchi; Toru (Ibaraki, JP)

Assignee: Ricoh Company, Ltd.

International Classification: H01S 3/13 (20060101)

Expiration Date: 2018-10-26 0:00:00