Patent ID: 8781385

Claim:
A medium-feeding device comprising: a feeding unit configured to feed a fed medium in a feed direction; a first separating unit provided downstream in the feed direction relative to the feeding unit, the first separating unit being configured to separate a multi-fed medium that has been multi-fed; a second separating unit provided downstream relative to the first separating unit, the second separating unit having a driving roller and a retard roller configured to perform an approaching/retracting movement relative to the driving roller, the second separating unit being configured to separate a multi-fed medium; and a contact part provided downstream relative to the second separating unit, the contact part being configured to restrict movement of the multi-fed medium towards downstream by contacting a front edge of the multi-fed medium, a length of the contact part in a direction which intersects the feeding direction being longer than a length of the retard roller in the direction which intersects the feeding direction, the contact part having a flat contact surface portion that is configured to contact the multi-fed medium, the flat contact surface portion and the retard roller being aligned in the feeding direction with respect to each other.