Patent ID: RE42269

Claim:
A double side scanner module comprising: a U-shaped inversion means for turning an original from one side to the other side by guiding said original from a paper feeding path to a paper output path, wherein said paper feeding path is an inlet end of said U-shaped inversion means and said paper output path is a outlet end of said U-shaped inversion means; a first glass window adjacent to said paper feeding path of said U-shaped inversion means; a first image information reading means located beneath said first glass window for reading an image on the first side of said original while said original is fed into said paper feeding path and said original is driven progressively through said first glass window said first image information reading means scanning said original at said inlet end of said U-shaped inversion means; a second glass window adjacent to said paper output path of said U-shaped inversion means; and a second image information reading means located beneath said second glass window for reading an image on the second side of said original while said original is inverted already by said U-shaped inversion means and said original is driven progressively through said second glass window, said second image information reading means scanning said original at said outlet end of said U-shaped inversion means, wherein the first image information reading means and the second image information reading means face toward to the same direction, in that case, the illumination caused by said second image information reading means projecting to the back of said first image information reading means, instead of projecting into said first image information reading means.