Ink-jet printing apparatus

摘要

In an ink-jet printing apparatus, upon ON-set of power source of the printing apparatus, stirring operation of ink in the main tank is performed for a given period of time (S502), during subsequent printing operation, the stirring operation in the main tank is performed for the given period (S511) per over predetermined elapsed time T0 (S505). By this, printing operation for a long period can be performed employing ink having water insoluble dye without causing a problem of admixing of bubble or so forth to be caused by stirring of the ink in the main tank.