Sharp MX-B427PW, Laser, 600 x 600 DPI, A4, 40 ppm, Duplex printing, Gray, White Sharp MX-B427PW. Print technology: Laser, Maximum resolution: 600 x 600 DPI. Maximum ISO A-series paper size: A4. Print speed (black, normal quality, A4/US Letter): 40 ppm, Duplex printing. Display: LED. Wi-Fi. Product color: Gray, White