To efficiently clean up soiling on the surface of an optical card and to surely carry the card into the device within a specific time.

When the optical card C is inserted into an optical card carrying mechanism 14, a 1st conveyor roller rotates and a 2nd conveyor roller 38 rotates at the same time through gears 36 and 49. At this time, the front end part of a ratchet plate 51 engages a rotation stopping gear 46 to stop a cleaning roller 40 from rotating, and the optical card C moves toward the 2nd conveyor roller 48 and a driven roller while having its surface cleaned up by the rotation of the 1st conveyor roller with the pressing force of cleaning cloth. In this case, the coefficeint of friction of the 1st conveyor roller is made larger than that of the cleaning roller 40 against the surface of the card C and held above 0.9, so that the cleaned optical card C is carried to the reference surface 15c of a mount 15 by the 2nd conveyor roller 48 and driven roller without causing a slip between the 1st conveyor roller and the surface of the optical card C.