An apparatus determines a type of a printing paper which is fed from a paper feed port of a printer. If it is determined that a print setting of a print target page does not match the type of printing paper fed from the paper feed port, the apparatus requests the printer to eject the printing paper set in the paper feed port and sends data of a print target page if a print setting of a print target page matches a type of a printing paper fed from the paper feed port after the printer has executed a paper ejection, or alternatively, the apparatus stores information about the print target page and determines whether a print setting of a page to be sent subsequent to the print target page in the print data matches the type of a printing paper fed from the paper feed port.