OKI ML5520 Dot Matrix Printer - 9 PIN, A4 / 80 Column up to 570 cps, 4 million caracter ribbon, Low Tear Capability, Character Pitch; 10/12/15/17.1/20 pitch, Up to 240 x 216 dpi, Emulation; Epson LX, IBM ProPrinter, OKI Microline, Connectivity; Centronics Parallel, USB 2.0, Automatic sheet Loading, Original + 5 copies, Paper parking, Low tear-off, Autoload single sheet,Push tractors, Bottom feed