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 ± 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 0~45 °C / 10~80% Storage environmentProduct Features Low noise, fast print speeds  High print quality  Support cash drawer driver compact and lightweight, attractive appearance reasonable structure, easy to install paper, easy maintenance the character can enlarge print, adjust line spacing Print support of different densities bitmap graphics printing machine download low power consumption, low running costs, no ribbons, ink cartridge Fully compatible with all operating systems, support for small ticket printing, logo printing, barcode printing, web printing, word typesetting printing, document printing.Product Care The thermal print head is heating parts, when a print job during printing or just after, do not touch the print head and the surrounding parts Do not touch the print head surface, so as to avoid electrostatic damage to the print head, the printer may not be in the state without printing paper, otherwise serious damage to the print head. The print head overheating protection function, when the temperature rose too high, the printer goes offline printer stops printing, the status indicator light, when the temperature decreases printer, the printer automatically continue printing back online.