A printing apparatus includes a transfer drum configured to rotate while supporting a plurality of transfer members on each of which an image is formed by discharging ink from a printhead, a rotating member configured to apply a processing liquid while being pressed against each of the plurality of transfer members, and a concave portion formed lower than a surface of each of the plurality of transfer members between the adjacent transfer members. In addition, the printing apparatus includes a driving unit configured to driven-rotate the rotating member in accordance with rotation of the transfer drum in a state in which the rotating member is pressed against the plurality of transfer members, and driving-rotate the rotating member in a state in which the rotating member faces the concave portion.