5: Select the appropriate size paper on the control panel. Most photocopiers will have at least two paper trays. The letter tray contains 8 1/2-inch by 11-inch paper, and the legal paper tray contains 8 1/2-inch by 14-inch paper. Most photocopiers also have a “paper bypass” feed that allows you to insert a single sheet of special-sized paper. If you need to make multiple copies on a special size or special color paper, you'll need to place the special paper directly in one of the main paper trays.