In a cleaning unit that cleans nozzles are provided a support base, a wiping portion that moves together with the support base to clean an ink on the nozzles, and a suction nozzle that is provided on the support base through a spring behind the wiping portion with respect to a traveling direction along which a cleaning operation is performed and sucks the ink subjected to cleaning. Two species of such links are disclosed, known as \u201csmart links\u201d and \u201cdynamic favorites\u201d. For example, engine acceleration may be used to predict future engine lubrication requirements so that oil pressure adjustments may be scheduled accordingly. Plasma is generated under a pressure in the range of not less than 6. The aquarium provides for scaleable sizing by use of interengaged retention grids securing the transparent viewing panels to the support frame. The detector is coupled to the thermal sensor and is configured to detect at least one of head-medium contact and clearance using the sensor signal and the electromagnetic attraction.