An inkjet printer includes an inkjet head having a first nozzle for ejecting first ink supplied from a first tank and a second nozzle for ejecting second ink supplied from a second tank, and a controller. The controller determine whether a replenishment condition is satisfied. When print data instructing to print with the first ink is received, in a case of determining that the replenishment condition is not satisfied, the controller causes the inkjet head to perform a first ejecting operation of ejecting ink from the first nozzle toward a medium and prohibiting ejection of ink from the second nozzle. When print data instructing to print with the first ink is received, in a case of determining that the replenishment condition is satisfied, the controller causes the inkjet head to perform a second ejecting operation of ejecting ink from at least the second nozzle toward a medium.