Patent ID: 6628431
Filing Date: 2003-09-30
Classification: H04N

Abstract:
A flat-bed-type image reader, comprising:an apparatus body including a read unit and an original bed on which to place a translucent original, the read unit traveling in a subscanning direction and including a CCD; and an original cover, which is attached to the apparatus body in such a manner as to be freely opened and closed, the original cover comprising a light source unit having a light source to irradiate the translucent original that is on the original bed and traveling in the subscanning direction synchronously with the read unit; a diffusion plate to diffuse light from the light source and being attached to the original cover in a vertically movable manner so as to be able to abut the translucent original that is on the original bed; and a first pressing element to press the diffusion plate toward the original bed, wherein the light source unit comprises first contact members that abut the diffusion plate and that are located at opposite ends of the diffusion plate as viewed along a main scanning direction; and a second pressing element over the light source unit to press the light source unit and diffusion plate toward the original bed, and wherein the light source unit travels in the subscanning direction synchronously with the read unit while abutting the diffusion plate, which abuts the translucent original that is on the original bed, when the read unit reads the translucent original that is on the original bed.