Canon MF6680dn, Laser, 1200 x 600 DPI, Color copying, Color scanning, Mono faxing, A4 Canon MF6680dn. Print technology: Laser, Maximum resolution: 1200 x 600 DPI, Print speed (color, normal quality, A4/US Letter): 8 ppm. Copying: Color copying, Maximum copy resolution: 600 x 600 DPI. Scanning: Color scanning. Faxing: Mono faxing. Maximum ISO A-series paper size: A4