A media conveying device includes: a delivery cylinder to rotate on an inner circumferential surface side of a medium conveyed along a curved conveyance path; a first guide disc to rotate integrally with the delivery cylinder on an inner circumferential surface side of the curved conveyance path, the first guide disc having an arc-shaped guide surface to come into contact with a first peripheral area of the medium in a width direction of the medium; a second guide disc to rotate integrally with the delivery cylinder on the inner circumferential surface side of the curved conveyance path, the second guide disc having an arc-shaped guide surface to come into contact with a second peripheral area of the medium in the width direction of the medium; and a slide mechanism to slide the first guide disc and the second guide disc in the width direction of the medium.