How can I load photo paper into the HP DeskJet GT 5820 series for photo printing?

To load small-size papers such as photo paper, raise the input tray and slide the paper-width guide to the left. Insert a stack of photo paper vertically into the far-right side of the input tray with the short edge down and print face up. Slide it down until firmly seated and then position the width guide against paper edges. (Page 18)