Inkjet printing apparatus

An inkjet printing apparatus comprising:

• a printing head provided with a first ejection unit and a second ejection unit, in each of which a plurality of ejection port arrays are formed, with a plurality of ejection ports for ejecting an ink being aligned in each of the plurality of ejection port arrays, the first and second ejection units being provided along a first direction with end edges thereof disposed next to each other;
• and
• a suction unit capable of contacting the first and the second ejection units and sucking the first and the second ejection units while moving relative to the first and the second ejection units in the first direction,
• wherein, when the suction unit moves in the first direction, after having sucked ink from the first ejection unit, the suction unit sucks ink from the second ejection unit, and where the suction unit is in contact with a corner portion of the second ejection unit overlapping an end edge of the first ejection unit at a downstream side in the direction of movement, and is not in contact with a corner portion of the second ejection unit not overlapping the end edge of the first ejection unit at the downstream side in the direction of movement, when viewed from the direction of movement.