360 x 360dpi, 136 cpi, USB 2.0, 76 - 406mm, 128 Kbytes
OKI ML5591eco, 473 cps, 360 x 360 DPI, 420 cps, 126 cps, 378 cps, 10,12,15,17.1,20 cpi
OKI ML5591eco. Maximum print speed: 473 cps, Maximum resolution: 360 x 360 DPI, Maximum print speed (draft): 420 cps. Paper feed: Push tractor. Product colour: Silver, Buffer size: 128 KB, Sound pressure level (printing): 56 dB. Standard interfaces: Parallel, USB 2.0, Optional connectivity: Ethernet, Serial (RS-232). Print head: 24-pin, Print head life: 200 million characters, Mean time between failures (MTBF): 20000 h