Patent ID: 7481426

Claim:
A medium feeder, adapted to feed a target medium to a liquid ejecting section in which liquid is ejected toward the target medium, comprising: a feeding roller, adapted to come in contact with the target medium, thereby feeding the target medium in a first direction; a first supporter, opposing the feeding roller and having a first supporting face adapted to support the target medium; a second supporter, disposed in an upper side of the first supporter and having a second supporting face adapted to support the target medium; a first edge guide, provided on the first supporter so as to be movable in a second direction perpendicular to the first direction, and having a first guiding face adapted to come in contact with a first side edge of the target medium; a second edge guide, provided on the second supporter so as to be movable in the second direction relative to the second supporting face, and having a second guiding face adapted to come in contact with the first side edge of the target medium, the second edge guide being coupled with the first edge guide so that the first edge guide and the second edge guide move together; and a retainer, provided in the second edge guide and operable to retain the second edge guide at an arbitrary position within a movable range of the second edge guide by not engaging the first edge guide with the first supporter but engaging the second edge guide with the second supporting face.