Technology : Laser Max Resolution (B/W) : 1200 x 1200 dpi Print Speed (B/W) : 45 ppm Automatic Duplexing : No Media Sizes : A4, A5, A6, B5 (JIS), B6 (JIS), 16K, Dpostcard (JIS), executive (JIS), RA4, 10 x 15 cm, envelope (DL ISO, C5 ISO, C6 ISO, B5 ISO), letter, legal, statement Total Media Capacity : 600 sheets Interface : USB 2.0, Gigabit LAN Monthly Duty Cycle (max) : 175000 pages RAM (Max Supported) : 1 GB