Excelvan 5890K USB 58mm POS Dot Thermal Receipt Printer, Black EASY TO USE & HIGH-SPEED PRINTING: This printer bulids in data buffer(when printing can receive print data), easy to load paper or use and maintenance. There are optional communication interface: parallel port or serial port. You can also choose enlarged character printing and adjust characters for line spacing. Beside, the driver printing (mode) implements and calls from the inbuilt word-bank for high-speed printing. APPLICATION: This printer supports cash drawer driving, different densities bitmap and downloaded graphics,fast bitmap printing, Windows2000/Windows XP/Windows2003/Windows Vista/Windows 7.(If you are using win8 or LINUX system please kindly contact us for installation instruction before purchasing). Not support Mac IOS System. HIGH COST-EFFECTIVE: This thermal printer has small size and light weight, Low-noise, high-speed printing, high-quality, more reliable performance, more stable printing, low power consumption, low operating costs (no ribbons or ink cartridges). MAIN FEATURES: Print commands: ESC / POS compatible command set, Print speed: 90mm / sec, Print Density: 384dots/line,Paper dimensions: 57.5 + / - 0.5mm x diameter 50.0mm. WARRANTY: 12 months warranty and friendly customer service, if any issue, avoid hassle return, replaced directly freely and delivered within 2 days or fully refunded within 30 business days.