User's Guide Specifications of Originals and Placing Originals Placing a Mixture of Originals at Different Sizes 1. Open the input tray and extend the input tray extension. Slide out the output tray, extend the output tray extension, and then raise the stopper. Note: If there are any thick originals amongst the originals, to stop the thick originals from bumping into the output tray and falling out, store the output tray and do not use it to stack the ejected originals. 2. Slide the edge guides on the input tray all the way out. 49