| 摘要 |
PURPOSE:To realize a multiple optical scanner capable of exposing plural photoreceptors even when the number of sets of optical parts is one. CONSTITUTION:Bending mirrors 15a to 15d in accordance with the number of photoreceptors are provided in one set of basic optical systems consisting of a light source(semiconductor laser 11), a 1st image-formation optical system 12, a deflector 13, and a 2nd image-formation optical system 14. By moving the bending mirrors from an optical axis or turning them, the photoreceptors 17a to 17d to be exposed are selected and the plural photoreceptors are exposed. Or by providing one reflection mirror in one set of basic optical systems and changing the angle of a reflection mirror, the photoreceptors to be exposed are selected and plural photoreceptors are exposed. |
