Oki 91909701 MICROLINE 420 Dot Matrix Printer OKI MICROLINE 420 Dot Matrix Printer (9-pin) (570 cps) (128 KB) (240 x 216 dpi) (Max Duty Cycle 24 000 Pages) (Parallel) (USB) (Energy Star) (Product Color: Black) OKI MICROLINE 420 Dot Matrix Printer (9-pin) (570 cps) (128 KB) (240 x 216 dpi) (Max Duty Cycle 24 000 Pages) (Parallel) (USB) (Energy Star) (Product Color: Black) Matrix