IMPROVEMENT IN IMAGE-FORMING APPARATUS

摘要

An image-forming apparatus comprising an optical means for projecting a light beam to be scanned and controlled according to an image to be formed, an electrostatic image-forming means for receiving the light beam to be scanned and projected from the optical means and forming an image corresponding to the light beam to be scanned, and a control means for controlling the optical means and the image-forming means. Said optical means includes a housing having a light beam passage opening (276) for passing of the light beam to be scanned therethrough and a plurality of optical elements accomodated in the housing, wherein the light beam passage opening (276) is closed by a substantially transparent material (346).