When they came up with the standard QR code, it could store "up to 7,089 numeric characters, 4,296 alphanumeric characters, 2,953 binary bytes," which was significantly more than a simple barcode.

The iDPRT SP420 thermal label printer is a versatile solution for printing labels, barcode, an QR codes. Compatible with Windows, Mac and Linux operating systems, this printer supports label ...

For QR codes or barcodes that customers will scan themselves to access online support, coupons or other information about products, Avery 1 and ½-inch labels may be more appropriate.