This invention relates to a gel-like composition in which ubiquinol is dispersed and stabilized in a gel and which contains 0. One such micro-fluid ejection head structure includes a micro-fluid ejection head having a substrate and nozzle plate assembly adhesively attached adjacent to a substrate support using a substrate adhesive. Friction pads andor friction surfaces may be mounted along the bed rail to further enhance the locking of the side rail to the mattress. Setting information including the first identification information is set in the logical printer, and the image forming apparatus is set as an output destination in the logical printer. Afterwards, the audio data is transmitted from the wireless communication system to the PDA and outputted by the audio element.