Patent ID: 7564600

Claim:
An image reading apparatus comprising: an image sensor to read images on documents passing a moving image reading position; a discharge tray to stack the documents sequentially after passing the moving image reading position; a guide member of which tilt angle is adjustably provided at a position where the document passes just beyond the moving image reading position; a conveying member to convey the documents guided through the guide member in the direction of the discharge tray; and a driver to adjust the tilt angle by moving the guide member, wherein the driver moves the guide member to change the tilt angle of the guide member which is set at a first position where the tilt angle is 15° to 30° when a thick document or a color image document is passed through the moving image reading position and which is set at a second position where the tilt angle thereof is 40° to 50° when a thin paper or monochrome image is passed through the moving image reading position.