According to one embodiment, an illumination device includes a light guide plate and a plurality of light sources. The remote-loop-back device also uses lossless lines of defined length for transporting the microwave signals outside the waveguides. At adjacent positions within the discharge outlet bearing surface 310c which are adjacent to the substrate-facing-surface 310b, discharge outlets 311 for discharging an application liquid are opened. While the virtual TPM thread is used to perform various TPM functions, the security-patrol thread monitors for physical attacks on the processor by implementing various numerical calculation loops, wherein an erroneous calculation is indicative of a physical attack. When such an occurrence happens, a notification is directed to the salesperson. The repeater includes a first antenna on one side of the side wall, a second antenna on an opposite side of the side wall, and an electrical connection between the first antenna and the second antenna.