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. 02, 2018
Filed:
Jul. 07, 2016
Yuki Honda, Kanagawa, JP;
Katsuhiko Maeda, Kanagawa, JP;
Yuki Honda, Kanagawa, JP;
Katsuhiko Maeda, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A light-beam-scanning apparatus includes first and second array-light sources including plural light-emitting units and a light-receiving unit; first and second light-source-control units for controlling light emission of the light-emitting units; a write-control unit for controlling the light-source-control units; a deflection unit for deflecting a direction of light emitted from the light-emitting units; and a synchronization-detection element for generating a synchronization-detection signal according to the light deflected by the deflection unit incident onto the synchronization-detection element. Initialization of the light-emitting units of the second array-light source is performed after initialization of the first array-light source is performed; and when the initialization of the light-emitting units of the first array-light source is being performed, a signal for causing the light-emitting units of the second array-light source not to emit light is input to the second light-source-control unit.