Liquid discharge apparatus

A liquid discharge apparatus, comprising:

• a support member configured to support a medium while rotating;
• a head facing the support member and configured to discharge a liquid onto the medium supported by the support member;
• a conveyance part configured to convey the medium between the support member and the head;
• and
• a foreign matter detection unit configured to detect a foreign matter heading toward between the support member and the head, in association with a conveyance of the medium by the conveyance part,
• the foreign matter detection unit having
• a movable roller facing the support member on an upstream side of the head in a direction of conveyance of the medium being conveyed by the conveyance part, the movable roller being configured to nip the medium between the support member and the movable roller,
• a rotational support member rotatably supporting the movable roller so as to allow inclination of the movable roller relative to a rotational axis direction, which is a center of rotation of the support member, and
• a retention member movably retaining the rotational support member in a direction going toward the support member.