Image recording apparatus comprising liquid supplying device having tank and cartridge

An image recording apparatus comprising:

• a liquid supplying device;
• and
• a recording portion,
• the liquid supplying device including:
• a first storage chamber;
• a second storage chamber;
• a gas passage configured to supply gas from the second storage chamber to the first storage chamber;
• a liquid passage configured to supply liquid from the first storage chamber to the second storage chamber;
• and
• an atmospheric communication portion,
• the recording portion being configured to eject liquid supplied from the second storage chamber,
• the atmospheric communication portion having:
• a buffer chamber in which gas is stored, the buffer chamber being positioned such that excessive liquid of the second storage chamber, which is supplied from the first storage chamber via the liquid passage, is stored therein, the buffer chamber being in fluid communication with the second storage chamber via a passage positioned below the first storage chamber;
• and
• an air communication passage allowing the buffer chamber to communicate with an atmosphere,
• wherein the image recording apparatus further comprises:
• a wall defining the second storage chamber, the wall being formed with a communication port that is in fluid communication with the second storage chamber;
• and
• another wall defining the buffer chamber, the another wall being formed with an opening that is in fluid communication with the buffer chamber, and
• wherein the passage extends between the communication port of the second storage chamber and the opening of the buffer chamber, both of the communication port of the second storage chamber and the opening of the buffer chamber being disposed below the first storage chamber.