Printing apparatus and inspection method therefor

A printing apparatus for executing printing by transferring an image formed on a rotating transfer member to a print medium, comprising:

• a first printhead configured to form an image by discharging ink, to the transfer member, from each nozzle of a plurality of nozzle arrays each of which is formed from a plurality of nozzles and which are arranged in a direction intersecting a rotation direction of the transfer member;
• a second printhead provided on a downstream side of the first printhead with respect to the rotation direction of the transfer member and configured to discharge, from each nozzle of a plurality of nozzle arrays each of which is formed from a plurality of nozzles and which are arranged in the direction intersecting the rotation direction of the transfer member to the image formed on the transfer member by the ink discharged from the first printhead, a transfer accelerator that accelerates transfer of the image formed on the transfer member to the print medium;
• an inspection unit configured to inspect, based on predetermined inspection data, a discharge state of each of the plurality of nozzles by driving each of the plurality of nozzles provided in each of the first printhead and the second printhead;
• and
• a control unit configured to control the second printhead so as to discharge the transfer accelerator from at least one nozzle of the plurality of nozzle arrays of the second printhead to a discharge area of the transfer member to which the ink is discharged by the first printhead for inspection of the discharge states of the plurality nozzles of the first printhead by the inspection unit while inspecting a discharge state of a nozzle different from the at least one nozzle of the plurality of nozzle arrays of the second printhead by discharging the transfer accelerator from the nozzle.