Printer specification print method thermal line printing print speed 90mm per second print fonts (ascii) font a(default): 12x24; font b: 9x17 column capacity (a/b) font a: 32; font b: 42 communication port usb / parallel / serial (optional) data buffer input 32kb paper spec 57.5 â± 0.5(w) * 65mm (diameter) reliability (tph) 50 km cutter sawtooth cutter cash drawer interface 1x port / 12vdc 1a, 6-pin rj-11 socket power supply input 175~240vac 50~60hz; output 12vdc 2.6a case color black printer net weight 0.78 kg printer dimension: 188x118x88mm operating environment