In a printing apparatus that prints a PIN code on a sheet, the printing apparatus performs control to suppress setting failure of WPS due to time-out at least until printing of the PIN code is completed. An x-ray source and an x-ray detector array are secured to the rotatable component ring for rotation with the component ring, and an x-ray containment shield encloses the x-ray source and the x-ray detector array and is secured to the rotatable component ring for rotation with the component ring. A detector is configured to receive the optical radiation attenuated by the tissue site and to generate a detector output responsive to absorption of the optical radiation within the tissue site. The end electrode extends toward the center of the core dice on both the top and bottom surface of the core dice. The digital high-pass filter in this invention can filter out a direct-current component of digital audio data such that the production of noise is avoided when the volume is adjusted by users.