A medium transport device includes a corrugation unit including a plurality of corrugation members that come into contact with a medium transported in a transport direction and impart a corrugated shape to the medium, and a transport path through which the medium is transported. When a direction along a surface of the medium and intersecting the transport direction is a width direction, and a direction intersecting the surface of the medium is an intersecting direction, a position of the corrugation member in the width direction and a position thereof in the intersecting direction are adjustable.

A manufacturing device for a filler element includes a sheet processing section forms a crimped part on a sheet and a feed portion that continuously feeds an additive dropwise onto an upper face of the sheet having the crimped part. The feed portion includes a multiple nozzle in which a large number of feed outlets feeding the additive are arranged in the width direction.

A manufacturing device for a filler element includes a sheet processing section forms a crimped part on a sheet and a feed portion that continuously feeds an additive dropwise onto an upper face of the sheet having the crimped part. The feed portion includes a multiple nozzle in which a large number of feed outlets feeding the additive are arranged in the width direction.