| 摘要 |
An automatic document transportation device (ADF) includes a transportation path 3, a resist roller 7a, transportation rollers 7, a scanning unit 8, a document discharge roller 9 and a document length sensor 34. The transportation path is formed from a document tray 2 to a document discharge tray 4. After a leading edge of an original document fed into the transportation path from the document tray makes contact with a standstill roller surface of the resist roller and a skew of the original document is corrected, the resist roller rotates to nip and transport the original document. The transportation rollers 7 are arranged appropriately along the transportation path downstream of the resist roller, and nip and transport the original document. The scanning unit 12 scans the transported original document. The document discharge roller 9 discharges the scanned original document onto the document discharge tray 4. |
