Inkjet printing apparatus and processing method therefor

摘要

A printing apparatus prints by scanning a print head (211) having the first nozzle array (401 to 412) of a plurality of nozzles corresponding to the first dot size and the second nozzle array (401 to 412) of a plurality of nozzles corresponding to the second dot size different from the first dot size. Each nozzle array (401 to 412) has a plurality of groups each formed from a plurality of nozzles. The printing apparatus includes a print buffer for holding multi-valued data. A predetermined number of multi-valued data in the scanning direction of the print head (211) are read out for each group from the print buffer. Dot data corresponding to a nozzle included in each nozzle array is generated from readout multi-valued data. The generated dot data is transferred to the print head (211).