| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical scanner capable of suppressing deformation of a casing with a simple configuration, and accurately focusing a laser beam into an image on an imaging medium.SOLUTION: In a casing 31 of a scanner unit 5 that emits a laser beam L based on image data toward a photoconductor drum 10, an opening 45 is formed on a lower wall 41 on which a deflector 34 that deflects and scans a laser beam L emitted from a light source unit 32, and an imaging lens 35 that focuses the laser beam L deflected and scanned by the deflector 34 into an image on the photoconductor drum 10 are fixed, along the optical axis of the laser beam L proceeding from the deflector 34 toward the imaging lens 35. |
