The air-stirring blade is provided that comprises a cylindrical body whose mid portion is provided with blade of such a construction that the inner side of the blade takes the form of stirred grooves with dip angle of about 10\xb0 to 80\xb0 or typically 30\xb0 with respect to vertical axis of the body. The ABG consists of an elongated resilient section having a quarter-circle cross-section and that has two or three articulated sections which allow the ABG to be positioned to conform to the position in which a bed-confined patient is lying on the bed or to the articulations of an adjustable hospital bed. A shielding mechanism, such as an intermediate plate, shields the lower elevator run from the upper run. Job identifying information is assigned to the extracted print job data. 55 over a majority of the light-emitting area, wherein either the substrate or cover is transparent and transmits light emitted from the EL unit. Magnetic force lines are centrally distributed at the inner or outer surface of the polar anisotropic magnetic ring to obtain high magnetic flux density and shortest magnetic line path to increase output efficiency when the polar anisotropic magnetic ring is coupled to the stator.