The scanner that reads the barcodes uses a laser.
If you refer to the unit on the point of sale they are generically named till laser scanners or for the hand held version hand held laser scanner
If you wish to purchase a laser barcode scanner online, you may want to try keyence.com, as they sell many different types for different purposes.
A bar code laser scanner works by shining a bright light (laser light) at the barcode and measuring the reflected beam. In order to scan the entire barcode very quickly, the light is bounced off a spinning disk to cover the entire barcode in one pass.
One can find a barcode laser scanner from a variety of retailers. Many stores such as Staples and Office Depot carry them online. Amazon and Ebay are also options.
A bar code scanner is an input device. While it does contain a laser, the laser is used to read the data, not to communicate anything to the user. The bar code scanner reads the UPC codes into the cash register or point of sale system.
A laser scanner emits laser beams in multiple directions and measures the time it takes for the beams to reflect back to the scanner. By capturing the precise distances to objects in the environment, the scanner creates a point cloud, which is then used to generate a 3D model of the crime scene. This model provides detailed spatial information that can be used for investigation and analysis.
The quality of the laser. It can be a deal breaker if the laser isn't the best.
A bar code scanner is an input device. While it does contain a laser, the laser is used to read the data, not to communicate anything to the user. The bar code scanner reads the UPC codes into the cash register or point of sale system.
The Brother DCP-7065 and Brother DCP 7060D both offer laser printers that have multiple function including a copier. Alternatively the Panasonic KX-FLM651 offers copier and laser printer features.
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A laser scanner will read each representation of the barcode it can see