Patent ID: 8368975

Claim:
An image processing apparatus capable of reading images on both sides of a document while transporting said document, comprising: a first image reading unit for reading an image on one side of said document; a second image reading unit for reading an image on the other side of said document; an image processing unit for processing the image of the side read by said first and second image reading unit; and a determining unit such that the image of the side that was read first by said first or second image reading unit is to be processed first; wherein: said first image reading unit includes a CCD for reading an image on a front side of said document by emitting light to the front side of said document from a light source and receiving reflected light from said document, said second image reading unit includes a CIS provided upstream of said CCD in a document transporting direction for reading an image on a back side of said document by emitting light to the back side of said document from a built-in light source and receiving reflected light from said document, and said determining unit determines that the image on the side read by said CIS is processed first.