Patent ID: 7611145

Claim:
An automatic document feeder comprising: a feed path extending between an input tray configured to receive a document to be read and an output tray configured to receive a read document, the feed path extending past a scanning point; a bidirectional feed path connected to a connection point disposed upstream from the scanning point of the feed path; a bypass diverged from a branch position disposed downstream from the scanning point of the feed path, the bypass connected to the connection point; a first guide member configured to move in the connection point to a first guide position where the feed path continues from the input tray to the scanning point and a second guide position to connect the bypass and the bidirectional feed path; and a second guide member configured to move in the connection point to a third guide position to connect the bidirectional feed path and the scanning position of the feed path and a fourth guide position where the feed path continues from the input tray to the scanning point; wherein the feed path and the bidirectional feed path connect at the connection point.