Specifications > 166ADFReverse automaticdocument feedYes, U-turn path double sided sheet through typeDocument size 297mm, 128.5 x 148.5mm, longest 900mmDocument weight/thickness52 to 105 g/m² (continuous feed)42 to 128 g/m² (single sheet feed)Paper feed Face upCapacity 50 A4 sheets (80 g/m²)25 A3 sheets (80 g/m²)Scanner life 5 years or 80,000 scansCopy SpecificationSpeed 26 pages per minute colour/34 pages per minutemonochromeNumber of copies Up to 999Resolution Text, Text&Photo, Photo: 300 x 300dpiExtra Fine: 600 x 600dpiDoc. Type Text, Text&Photo, Photo, Extra FineDensity 7 levelsZoom 25% to 400%Input tray Tray 1/MP Tray/Tray 2 (optional)/Tray 3(optional)Edge erase 5 to 50mmMargin -25 to 25mmPaper saving (N-in-1) 2-in-14-in-1 (horizontal or vertical layout)8-in-1 (horizontal or vertical layout)Multiple image (Repeat) x2x4x8Sort (collate) ON/OFFDuplex copy OFF, 1->2 sides, 2->2 sides, 2->1 sideBook copy OFF, Left, RightErase centre 1 to 50mmMixed size OFF/ONCont. scan OFF/ONScan size Auto, A3, B4, A4, A4(SEF), B5, B5(SEF), A5,A5(SEF), Letter, Letter(SEF), Tabloid, Legal 14,H.LTRITEM SPECIFICATION