Canon i-SENSYS MF6550, Laser, Mono printing, 1200 x 600 DPI, Mono copying, Colour scanning, A4 Canon i-SENSYS MF6550. Print technology: Laser, Printing: Mono printing, Maximum resolution: 1200 x 600 DPI. Copying: Mono copying, Maximum copy resolution: 600 x 600 DPI. Scanning: Colour scanning, Optical scanning resolution: 600 x 600 DPI. Faxing: Mono faxing. Maximum ISO A-series paper size: A4