A printing apparatus includes a nozzle that ejects, to a medium, photo-curing ink cured when irradiated with light, and an irradiation unit that irradiates, with the light, the photo-curing ink landed on the medium. The ceramic layers are, because of being in the form of a sintered body of non-glass low temperature cofired ceramic, less likely to fluctuate in composition, and the multilayer ceramic substrate can be thus inexpensively and easily manufactured therefrom. The pin and lever are spaced apart circumferentially on the handle and are connected by the yoke. When a data manager determines that a software application in another independent multiprocessor system is configured to process the same data type, then data can be sent from one multiprocessor system to the other to allow a software application in the communicating multiprocessor system to control and operate a software application in the other multiprocessor system. The radio transmitting and receiving part is provided at the common part so as to be exposed to open air. The knife includes a blade lock mechanism.