When you scan an image, does it look more like a duplicate made by a photocopier? Does enlarging your image give you headache because you always get a sort of colored boxes, instead? A scanner is just like a photocopier. The only difference is that, a copier creates a copy to a paper while a scanner transmits the scanned object into the computer, thus, creating a digital image of any printed material. The transferring of image to the paper is done by a printer. One purpose of scanning is to .