Patent ID: 8957933
Filing Date: 2015-02-17
Classification: G03G

Abstract:
1. An optical writing device forming an electrical latent image on a photoreceptor, the optical writing device comprising: 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; 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; and a power information retaining unit configured to retain the power supply information or the power cutoff information output from the power supply status detector, wherein