DELL 3115cn, Laser, Colour printing, 600 x 600 DPI, Mono copying, Colour scanning, A4 DELL 3115cn. Print technology: Laser, Printing: Colour printing, Maximum resolution: 600 x 600 DPI, Print speed (colour, normal quality, A4/US Letter): 17 ppm. Copying: Mono copying. Scanning: Colour scanning. Faxing: Mono faxing. Maximum ISO A-series paper size: A4