Ricoh Aficio SP C312DN, Laser, Colour, 2400 x 600 DPI, A4, 25 ppm, Duplex printing Ricoh Aficio SP C312DN. Print technology: Laser, Colour. Maximum duty cycle: 50000 pages per month. Maximum resolution: 2400 x 600 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 25 ppm, Duplex printing. Network ready