Flatbed Scanner: The Flatbed
scanner is most common desktop scanner. It resembles the copy machine.
In a Flatbed scanner, The item being scanned rests on a glass plate
whicle the scanning head moves underneath it. It works like a copy
machine except that it creates a file of the document rather than a
Personal sheetfed scanners have gained popylarity during the last few
years. These devices are more like fax machines, because they move the
page being scanned past the scanning head. The main difference between
this type and a flatbed scanner is that the image sensor does not move
but the document itself is pulled past the mounted image sensor.
The handheld scanner is a scanning device where the scanning element is
built inro a small handheld unit. The handheld unit is then waved or
rolled over the item being scanned.