Epson AcuLaser C4000T, Laser, Colour, 2400 x 600 DPI, A4, 16 ppm, Duplex printing Epson AcuLaser C4000T. Print technology: Laser, Colour. Number of print cartridges: 4, Maximum duty cycle: 30000 pages per month. Maximum resolution: 2400 x 600 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 16 ppm, Duplex printing. Product colour: Grey