Automatic document feeder and an image forming apparatus

The present invention discloses an automatic draft feeder and an image forming apparatus. The automatic document feeder comprising: a transport path member, the conveyance path member includes a surface forming the conveying path of the conveying path, the conveying path end member is moved to open the conveying path in a direction away from the body away from the feeder; the support member, the support member is rotatable relative to the conveying path member coaxially; restricting portion, the restricting portion restricts the relative rotation of the end portion of the path of the conveying member; and a biasing member, the biasing member to be limiting portion the direction of the contact portion of the restriction to be biased toward the restriction portion, said end portion of the conveyance path member supported on the first open position and permitting movement of said end portion of the conveying path to the second member two open positions, said second open position, the conveying path be larger than the first opening in the open position.