The present invention provides a print apparatus and a printing method which enable high-grade images to be output at high speed without the need to drastically reduce the number of printing elements used to print leading and trailing end portions of a print medium. A first mask pattern used to print a middle portion of the print medium is different from a second mask pattern used to print the leading or trailing end portion of the print medium. The present invention thus eliminates the need to drastically reduce the number of printing elements used to print the leading or trailing end portion as with the prior art.