OKI A4 OkiFax 4515. Type: Laser, Fax resolution: 400 x 200 DPI, Modem speed: 33.6 Kbit/s. Copy speed (normal quality, black, A4): 10 cpm, Maximum number of copies: 99 copies, Gray scale levels: 64 levels of grey. Standard input capacity: 250 sheets. Standard output capacity: 250 sheets. ISO A-series sizes (A0...A9): A4