Style: PrinterThe new LX-350 has fast and durable 9-Pin technology prints up to 347 characters per second and is ideal for front and back office applications needing continuous paper or multi-part stationery. Now more reliable than ever the LX-350 has a mean time between failure of 10 000 operating hours. LX-350 Dot Matrix Printer (9-pin) (347 cps) (Parallel) (Serial) (USB) (Energy Star). Matrix.