Within a radio access network an access point selects a channel by first randomly choosing a channel from those available for use. The sounding body is arranged on the same axis as that of the pipe member. In another embodiment, these compositions are useful in cleaning applications as a degreasing agent or defluxing agent for removing oils andor other residues from a surface. The cover is rotatably supported to allow motion in both the forward and backward directions between first and second positions. In accordance with the printing order information, the ink color contained in image data is detected and an order for each page to be printed is determined on the basis of a user’s print request to execute the printing operation according to the page order and to reduce the number of times the printing drum is replaced with. The auditing application is configured to analyze content to be displayed on the display device for confidentiality indicators.