Data processing apparatus, data processing method, printer driver, print control apparatus, print control method, and printing system

In a printing system, intermediate data in a rendering-standby state can be rendered before intermediate data of an entire page is accumulated in a printing apparatus. A printer driver of a host computer sequentially converts a plurality of rendered objects of each page generated by an application to rendering commands of each page which can be interpreted by the printing apparatus. Every time a rendered object that should be rendered last in each of a plurality of bands, which are defined by dividing a page by the printing apparatus, is detected, the printer driver converts the rendered object that should be rendered last to a rendering command and notifies the printing apparatus of end information indicating the end of processing of the corresponding band.