A system and method for transferring money by use of a prepaid card account is disclosed wherein two cards are issued to the user accountholder, one of which is provided to another user, and either user may add value to the prepaid account so that the other user may use the card and that value in a financial transaction. Transmittance of the white color filter is based on neutral density transmittance that is uniform throughout an entire wavelength band of visible light, and transmittance in a particular wavelength band in the entire wavelength band of the visible light is decreased to be lower than the ND transmittance. The intermediate drive member and the sensor shaft are coupled to each other within the hub member.