To provide a printing apparatus that is capable of making printing density in black on printing of facsimile data thicker than printing density in black on color printing.

With a printing command outputted at the step 100, judgement is made at the step 110 to determine whether printing mode is effective, and in the case where the printing mode is not effective, judgement is made at the step 120 to determine whether facsimiling mode is effective, and in the case where the facsimiling mode is effective, driving waveform of driving signal is set at the step 130 in the form of multipulse having two pulses for one printing data and printing is made at the step 140 in multipulse. Thereby, ink drop is ejected two times from a nozzle for one printing data and printing density can be made thick.