To eliminate effects of manufacturing irregularities when drive signals are interchanged in the case where two drive signal generating parts are present.

The printing system has an element, a first drive signal generating part, a second drive signal generating part, a memory which stores a first correction value and a second correction value, and a controller. The controller makes the first drive signal generating part generate the drive signal for forming dots of a predetermined size. At the same time, the controller corrects a quantity of ink to be ejected according to the drive signal generated by the first drive signal generating part on the basis of the first correction value at the time of making the second drive signal generating part generate the drive signal for forming dots of a different size from the predetermined size, and corrects a quantity of ink to be ejected according to the drive signal generated by the second drive signal generating part on the basis of the second correction value at the time of making the second drive signal generating part generate the drive signal for forming the dots of the predetermined size.