Patent ID: 7003258

Claim:
A transfer device for transferring an object to be transferred in a predetermined direction, comprising: a drive mechanism unit that includes roll parts which cause the object to be transferred to move in the predetermined direction with a rotational force; a transfer direction displacement information acquiring unit that radiates a predetermined measuring wave toward the object to be transferred, detects a wave from the object to be transferred as a measured wave that corresponds to the measuring wave, and acquires displacement information in a transfer direction of the object to be transferred that is moved by the drive mechanism unit; a skew direction displacement information acquiring unit that radiates a predetermined measuring wave toward the object to be transferred, detects a wave from the object to be transferred as a measured wave that corresponds to the measuring wave, and acquires displacement information in a skew direction substantially orthogonal to the transfer direction of the object to be transferred that is moved by the drive mechanism unit; and a transfer processing unit that, on the basis of the displacement information in each of the transfer direction and the skew direction acquired by the transfer direction displacement information acquiring unit and the skew direction displacement information acquiring unit, performs predetermined processing according to a state of transfer of the object to be transferred.