The ink jet type printer is equipped with a recording head for ejecting ink including humectant and water from a nozzle formed on a nozzle forming surface and a cap which can seal the nozzle forming surface of the recording head. Further, the ink jet type printer is equipped with a control section for detecting an amount of the ink discharged into the cap from the nozzle, for calculating an available water amount which is a water amount except water absorbed by humectant in the ink in the cap based on the detected ink amount, and for performing maintenance control for forcibly discharging ink into the cap from the nozzle so that the amount of the ink discharged from the nozzle becomes smaller when the calculated available water amount is large than when small.