Transport device

A transport device comprising:

• a medium support unit having a placement surface where a sheet-like medium is placed;
• a transport unit supplied with the medium placed at the placement surface and transporting the medium in a transport direction along a sheet surface of the medium;
• an ultrasonic transmitting unit provided at a part of the medium support unit and transmitting an ultrasonic wave;
• an ultrasonic receiving unit provided at another part of the medium support unit, and receiving the ultrasonic wave and outputting a received signal;
• and
• a floating detection unit determining whether a floating of the medium from the placement surface is present or not, based on the received signal,
• wherein the ultrasonic transmitting unit and the ultrasonic receiving unit are located apart from each other when viewed in a direction perpendicular to the placement surface,
• the medium support unit has a first guide and a second guide coming into contact with the medium placed at the placement surface from both sides of a direction along the sheet surface and orthogonal to the transport direction, and guiding the medium in the transport direction, and
• one of the ultrasonic transmitting unit and the ultrasonic receiving unit is provided at the first guide or the second guide, and the other is provided at the placement surface.