Patent ID: 8842343
Filing Date: 2014-09-23
Classification: G03G,H04N

Abstract:
1. An image scanner comprising: a light source that irradiates, with light, a recording medium on which an image is formed; a light receiving portion that receives light reflected by the recording medium; a reflecting portion that has a plurality of reflecting surfaces, each of the reflecting surfaces respectively disposed in a first scan direction at positions having different distances in an optical axis direction from the light receiving portion and being formed so that each of the reflecting surfaces are joined together, each of the reflecting surfaces simultaneously and directly reflect light in a direction that is substantially parallel to the optical axis, and the reflecting surfaces have level differences formed in the first scan direction so that one reflecting surface is substantially parallel to and disposed higher than another reflecting surface; and a processing portion that generates information on the image formed on the recording medium and information for measuring illumination depth of the light source, by use of the light received by the light receiving portion.