Laser technology Laser HP color LaserJet 4600dn printer, Laser, Colour, 600 x 600 DPI, A4, 16 ppm, Duplex printing HP color LaserJet 4600dn printer. Print technology: Laser, Colour. Number of print cartridges: 4, Maximum duty cycle: 85000 pages per month. Maximum resolution: 600 x 600 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 16 ppm, Duplex printing. Network ready, Wi-Fi. Product colour: Grey