Patent ID: 8520273

Claim:
An A4-size scanner capable of scanning an A3 document, the scanner including a main body having a flat glass on which a document is loaded, and a cover for opening and closing the main body, comprising: a scanning part which dividedly scans the document having a larger size than a scanning capacity, and which comprises a scanning sensor that is disposed in the main body so as to scan the document; an automatic document feeding unit having a transferring roller member which is provided at a rear side of the cover and comprised of a plurality of rollers, a document feeding port and a document discharging port which are formed at a rear side of the automatic document feeding unit to be parallelly formed up and down, and a document exposing port which is formed at a front side of the automatic document feeding unit so that a part of the document fed through the document feeding port is exposed to an outside of the flat glass; and a transferring roller member driving motor which transmits driving force to the transferring roller member so that the transferring roller member is rotated forwardly and reversely; and an image processing part which performs an image processing for composing two images which are dividedly scanned through the scanning part.