Supports to print 3.1" (80mm) thermal paperSupports to print general 1D barcode and 2D (QR/PDF417) barcodes as neededEasy loading paper, out-off paper, with near-end sensor and black mark detectionWith 256K NV flash an 2MB data buffer to strengthen printing speed and graphic printing and support multi languages with graphic (User defined) printingWith auto cutter and the reliability of cutter life is 1 million times and printer head life up to 100KMSupports re-print function, missing order printing and forbid lose order to printWith Multi-Interface : USB & Serial 232Compatible ESC / POS commandSupports Windows , Android, Linux OS system s and OPOS driverWater, oil splash and dust proof design