Parameter VMP01-PI Infrared printer VMP01-PB bluetooth printer Print Method Thermal line Paper Width 58mm Size 90x76x36mm Weight 220g(without paper roll) Paper Roll diameter ≤30mm Print Width 16 Chinese chars/Line; 32 English chars/Line, 24 Chinese chars/Line; 48English chars/Line Chinese character setting GBK, Unicode(UTF8) Code page ASCII(8X16,12X24)、GBK(16X16,24X24) Printing speed 4cm/s(10 lines/s) Reliability 50km/dot:100miilion Print contents ASCII character, Chinese character, User Defined ,symbol ,logo curve Barcode(one-dimension):UPC-A、UPC-E、CODE39、EAN-13、EAN-8、CODABAR、CODE128、CODE93.ITF Barcode(Binary):QR Code Printing Density 203dpi(8 dots/mm) Communication interface RS232 /IrDA RAW-IR VIR RS232C/Bluetooth Wireless communication IrCOMM ,VIR ,RAW-IR Bluetooth CLASS 2 Power supply 650mAh/7.4V chargeable NIMH battery Charge Standby Printing length (after charging) 30-60m Detect function Paper run out ,battery low ,unconventionality Black mark detection Enable (left and right) Paper loading Clamshell loading Paper cutting Manual Code setting ESC/POS compatible setting Standard accessories Thermal printing paper ,adapter ,battery ,bag Optional accessories Data wire ,car charger ,