Medium transport device

摘要

A medium transport device is provided. The medium transport device includes a transporting portion that transports a medium in a transport direction, a winding portion that winds the medium, and a friction member that suppresses displacement of the medium in a cross direction with the transport direction. The displacement in the cross direction is suppressed by causing the friction member to contact the medium. A contact state of the medium with the friction member is changed in accordance with a winding mode in which the medium transported by the transporting portion is wound around the winding portion, and a non-winding mode in which the medium transported by the transporting portion is not wound around the winding portion.

主权项

1. A medium transport device comprising:
a transporting portion that transports a medium in a transport direction; a medium support portion that supports the transported medium in the transport direction by contacting an underside of the medium, the medium support portion having a movable tip portion at a downstream end in the transport direction; a winding portion that winds the medium, wherein the tip portion is moveable based on tension applied when the winding portion winds the medium; and a friction member that is configured to come into contact with the medium and that is configured to suppress displacement of the medium in a direction that is transverse to the transport direction when the friction member comes into contact with the medium, the friction member being disposed adjacent to an end portion of the medium support portion in a downstream direction in the transport direction, the friction member coming into contact with the medium when the moveable tip portion comes into contact with the friction member, wherein a contact state of the medium with the friction member is changed in accordance with a winding mode in which the medium transported by the transporting portion is wound around the winding portion, and a non-winding mode in which the medium transported by the transporting portion is not wound around the winding portion, wherein the friction member and the winding member are downstream of a recording head that is configured to eject ink onto the medium.