Code 39 3 mil: 0 to 5 cm / 0 to 2.0 in. QR Code 7 mil: 0.5 to 2.5 cm / 0.2 to 1.0 in. (SM2) 10 mil: 0 to 8 cm / 0 to 3.1 in. (N4680) EAN13 13mil: 0 to 20 cm / 0 to 7.9 in. (SM2) 0 to 24 cm / 0 to 9.4