When a mobile node MN moves from an access router AR3 to another access router AR4, it sends a multi-binding on request to a mobility agent MA1 and then moves }). Status information associated with the one or more pieces of equipment is automatically received. This haplotype explained up to 26% of population variation in bone cortical volume, 12% of subcutaneous fat volume, and 9% of strength variation, resulting in a body build with large bones, strong muscles, and low subcutaneous fat. A scanning control unit controls, based on the detection results obtained by the BD sensor and two light detection sensors, the irradiation position of the light beam on a photosensitive drum.