Laser Marking of QR and Data Matrix Codes by Scott Sabreen Plastics Decorating . The drive to encode more information, in combination with smaller space requirements, led to the development of 2D "Data Matrix" and "QR" Codes. These codes provide quick access to the internet, corporate branding or other information and must be scanned by a camera capture … [Read more...] about Laser Marking of QR and Data Matrix Codes