The method for correcting scanned data and the image forming apparatus for performing the method

PURPOSE: A scan data correction method for outputting scan data by a scan object manuscript and an image forming apparatus for implementing the same are provided to compensate scan data. CONSTITUTION: A scan unit(820) scans an object manuscript locating on the scan glass and a scan unit generates a first scan data. The scan unit rotates the document at first angle and generates a second scan data. A scan data processing unit(830) compensates the first data value of scanned first scan data in the damaged given area. A storage(840) stores first scan data, second scan data and corrected first scan data.