CARD READER

The present application provides a card reader with which it is possible to prevent a decrease in the overall inductance of coils constituting an interfering magnetic field generating means even if it is impossible to ensure ample installation space for the coils constituting the interfering magnetic field generating means, such space being in the vicinity of a card insertion opening and the vicinity of a position through which a magnetic stripe passes. A card reader (1) is provided with: a card insertion opening (3) into which a card (2) having a magnetic stripe (2a) is inserted; a card passage through which the card (2), having been inserted from the card insertion opening (3), is passed; and a disturbing magnetic field generation means (7) that generates a magnetic field for disturbing illegal reading of magnetic data recorded in the magnetic stripe (2a). The disturbing magnetic field generation means (7) is provided with a plurality of coils (11, 12) connected in series, and a drive circuit (15) that has a capacitor (19) connected in parallel to the plurality of coils (11, 12), and that supplies a current to the plurality of coils (11, 12).