Printing apparatus and liquid storage member

A liquid storage container comprising:

• a liquid storage chamber configured to store a liquid to be supplied to a print head of the printing apparatus;
• a liquid injection portion configured for injection of the liquid into the liquid storage chamber from the outside;
• an atmosphere communication chamber configured to communicate with the atmosphere, the atmosphere communication chamber being arranged under the liquid storage chamber in a direction of gravity;
• and
• a communication flow path configured to allow communication between the liquid storage chamber and the atmosphere communication chamber, the communication flow path having an opening in the atmosphere communication chamber, the opening being arranged under an ejection port surface of the print head in the direction of gravity.

A printing apparatus comprising:

• a print head having an ejection port surface on which an ejection port which ejects a liquid is formed;
• a liquid storage container including:
• a liquid storage chamber configured to store the liquid to be supplied to the print head;
• a liquid injection portion configured for injection of the liquid into the liquid storage chamber from the outside;
• an atmosphere communication chamber configured to communicate with the atmosphere, the atmosphere communication chamber being arranged under the liquid storage chamber in a direction of gravity;
• a communication flow path having an opening in the atmosphere communication chamber and configured to allow communication between the liquid storage chamber and the atmosphere communication chamber, the opening being arranged under the ejection port surface in the direction of gravity;
• and
• an atmosphere communication flow path that is connected to the atmosphere communication chamber and an atmosphere opening that opens into the atmosphere;
• and
• wherein the printing apparatus further comprises a first valve provided on the atmosphere communication flow path and configured to switch a first open state in which the atmosphere communication chamber communicates with the atmosphere through the atmosphere opening and a first closed state in which the atmosphere communication chamber does not communicate with the atmosphere.