A Scanner is a device that analyzes the surface of an image, printed text or an object and converts it into a two-dimensional digital image.

Scanners come in different shapes and sizes depending on the intended use. The most common scanner for home and offices today is the flatbed scanner.

This type of scanner is sometimes called reflective scanner because it works by shining white light onto the object to be scanned and reading the intensity and color of light that is reflected from it, usually a line at a time. 

 There are two types of flatbed scanners, CCD scanner, CIS scanner.