INK-JET RECORDING APPARATUS AND ITS RESTORATION PROCESS METHOD

摘要

PROBLEM TO BE SOLVED: To reduce as much as possible a consumption of an ink solution in a restoration process and a quantity of a recycle ink solution generated. SOLUTION: A printing discharge pattern of a printing process is stored in a discharge pattern memory 22. A timer 21 is started from a printing end time point to monitor a passed time. Whether the passed time exceeds a predetermined time or not is judged. A preparatory discharge pattern is formed on the basis of the printing discharge pattern to carry out a preparatory discharging and restoration process. Whether all nozzles are to be subjected to the preparatory discharging or only non-discharge nozzles are to be subjected to the preparatory discharging can be set accordingly. A consumption of an ink solution in the restoration process and a quantity of a recycle ink solution to be generated can be reduced.