Types of Barcode Readers

Types of Barcode Readers
Many different types of barcode scanners are available. They can be distinguished as follows:





By light source
1. LED scanner : also referred to as CCD scanners, even though the CCD is in fact the photo imaging sensor, not the light source.
2. Laser scanner : more expensive than LED scanners but are generally capable of longer maximum scanning distances.
3. Linear Imager scanner : These scanners use a "linear Imaging Sensor" to take an image of the barcode. The sensor is a single row of light sensitive pixels generally used to scan one dimensional or "linear codes". Typically more rugged than laser scanners since they have no moving parts.
4. 2D Imaging scanner : These scanners take a 2D image of the barcode as in a camera and can be used to scan 2D barcode types such as Datamatrix as well as the more common linear barcode types.

By housing
1. Handheld scanner : with a handle and typically a trigger button for switching on the light source.
2. Pen scanner (or wand scanner) : a pen-shaped scanner that is swiped.
3. Stationary scanner : wall- or table-mounted scanners that the barcode is passed under or beside. These are commonly found at the checkout counters of supermarkets and other retailers.
4. Fixed position scanner : an industrial barcode reader used to identify products during manufacture or logistics. Most often used on conveyer tracks to identify cartons or pallets which need to be routed to another process or shipping location.
5. PDA scanner : a PDA with a built-in barcode reader.