Canon MF6680dn, Laser, 1200 x 600 DPI, Colour copying, Colour scanning, Mono faxing, A4 Canon MF6680dn. Print technology: Laser, Maximum resolution: 1200 x 600 DPI. Copying: Colour copying, Maximum copy resolution: 600 x 600 DPI. Scanning: Colour scanning. Faxing: Mono faxing. Maximum ISO A-series paper size: A4