A recording apparatus that comprises a cap, an idle suction device for exhausting the cap to the outside, a predischarge device for pre-discharging ink to the cap at designated time intervals, an accumulating device for accumulating the ink by the predischarge, a first comparison device for comparing...http://www.google.com.au/patents/US6746096?utm_source=gb-gplus-sharePatent US6746096 - Recording apparatus and predischarge control method
