Patent ID: 8282189

Claim:
An ink jet printing apparatus which uses a plurality of print heads capable of ejecting ink through ink ejection ports to print an image on a print medium, the ink jet printing apparatus comprising a recovery unit capable of sucking and discharging the ink from each of the ink ejection ports in the plurality of print heads, wherein the recovery unit comprises: a plurality of caps configured to be able to cap the ink ejection ports in each of the plurality of print heads; a negative-pressure generation unit that generates a negative pressure for acting inside of the plurality of caps; and a plurality of individual suction paths configured to individually connect each of the plurality of caps to the negative-pressure generation unit; and a plurality of valves, each valve respectively provided in each of the plurality of individual suction paths so as to open and close each of the plurality of individual suction paths, wherein the ink jet printing apparatus further comprises a control section configured to control each of the plurality of valves so as to open the plurality of valves concurrently and to close the plurality of valves individually, timings for closing each of the plurality of valves becoming later as a channel resistance of the corresponding individual suction path becomes higher.