Epson LX-310 Dot Matrix Printer9 Pin Narrow Carriage Impact Printer Highly reliable printing with better performance Narrow carriage 9 pin SIDM High 357 CPS print speed at 12CPI 10,000 power on hour MTBF USB, Serial and Parallel ports Print Method: Impact dot matrix Control Panel: 4 switches and 5 LEDs Print Direction: Bi direction with logic seeking Number of Pins in Head: 9 pins Control Code: ESC P and IBM PPDS emulation Number of Pins: 9 High Speed Draft: (10 12 15 cpi): 347 357