S The page is printed in simplex mode. That is, the PRINTER should print on only one side of the paper. If another mode was previously active, then the printer is switched to simplex mode with the start of the page.

D The page is printed on the first side of a sheet in duplex mode. If another mode was previously active, then the printer is switched to duplex mode with the start of the page and continues in this mode.

T The page is printed on the first side of a sheet in tumble duplex mode. That is, the printer PRINTS on both SIDES. The page on the SECOND side is always inverted, so that the footer of the second page is printed opposite the header of the first page.

S The page is printed in simplex mode. That is, the printer should print on only one side of the paper. If another mode was previously active, then the printer is switched to simplex mode with the start of the page.

D The page is printed on the first side of a sheet in duplex mode. If another mode was previously active, then the printer is switched to duplex mode with the start of the page and continues in this mode.

T The page is printed on the first side of a sheet in tumble duplex mode. That is, the printer prints on both sides. The page on the second side is always inverted, so that the footer of the second page is printed opposite the header of the first page.