An anisotropic bonded magnet is produced at a low cost by avoiding various problems caused by remanence. A plurality of hybrid paper supply modules are stacked together to constitute a paper supply mechanism. The respective space-time channel encoders receive a digital-modulated symbol group from the corresponding channel, perform a space-time encoding operation with respect to a plurality of space areas and at least one time area, shift phases by using a plurality of phase values, and generate a plurality of phase-shifted space-time codewords. An aspiration aperture in the cross-port couples the cross-port to an internal cavity of a strut of the probe.