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:
Feb. 17, 2015
Filed:
Aug. 06, 2013
Yoshinori Shirasaki, Osaka, JP;
Tatsuya Miyadera, Kanagawa, JP;
Masayuki Hayashi, Osaka, JP;
Motohiro Kawanabe, Osaka, JP;
Hiroaki Ikeda, Osaka, JP;
Tomohiro Ohshima, Osaka, JP;
Akinori Yamaguchi, Osaka, JP;
Yoshinori Shirasaki, Osaka, JP;
Tatsuya Miyadera, Kanagawa, JP;
Masayuki Hayashi, Osaka, JP;
Motohiro Kawanabe, Osaka, JP;
Hiroaki Ikeda, Osaka, JP;
Tomohiro Ohshima, Osaka, JP;
Akinori Yamaguchi, Osaka, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An optical writing device forming an electrical latent image on a photoreceptor includes an optical writing unit configured to apply light to the photoreceptor, a power supply unit configured to supply power to the optical writing unit, a power supply status detector configured to detect a power supply status of the power supplied from the power supply unit to the optical writing unit, and output power supply information or power cutoff information, a power cutoff information retaining unit configured to retain the power cutoff information when the power cutoff information is output from the power supply status detector, and a power sensor configured to sense a power supply status of the power supplied by the power supply unit based on the power cutoff information retained by the power cutoff information retaining unit.