Printing apparatus

A printing apparatus comprising:

• a print head including a nozzle array for discharging a liquid;
• a negative pressure generating portion configured to apply a negative pressure to the nozzle array;
• a tank including a storage portion configured to store the liquid, and a buffer chamber provided above the storage portion in a vertical direction and configured to be capable of storing the liquid flowing out from the storage portion;
• and
• a tube configured to supply the liquid stored in the tank to the print head, the tube being connected to the print head in a state of the print head discharging the liquid from the nozzle array,
• wherein a highest position of a liquid level in the buffer chamber in the vertical direction is higher than a position of the nozzle array, and an absolute value of a water head difference caused by a difference between the highest position of the liquid level in the buffer chamber and the position of the nozzle array is not larger than an absolute value of a negative pressure generated by the negative pressure generating portion.