OKI Microline 390 Flatbed. Maximum resolution: 360 x 360 DPI, Maximum print size: A3 (297 x 420 mm). Maximum print speed: 270 cps, Normal print speed: 225 cps, Maximum number of copies: 5 copies. Standard printer languages: Epson LQ. Standard interfaces: Parallel. Print head life: 200 million characters, Ribbon life: 2 million characters, Mean time between failures (MTBF): 5000 h