An image recording apparatus includes: a cartridge; a cartridge attachment portion; and a switching portion. The cartridge includes: a first storage chamber; a first air communication portion; and a first supply portion. The cartridge attachment portion includes: a second storage chamber; and a second air communication portion. The switching portion changes a passage resistance value of air flowing through one of the first and second air communication portions. An inequality of R2>A×R1 is met, in which R1: a passage resistance value obtained by air flowing through the first air communication portion and a passage resistance value of the liquid flowing through the first supply portion; R2: a passage resistance value of air flowing through the second air communication portion; A: a cross-sectional area ratio obtained by dividing an average cross-sectional area of the first storage chamber by an average cross-sectional area of the second storage chamber.