User's Guide Printer Basics 16 A Document cover Blocks external light while scanning. B Scanner glass Place the originals. C Memory card slot Insert a memory card. D External interface USB port Connects an external storage device or a PictBridge capable device. A Rear paper feed slot Load one sheet of paper at a time by hand. B Paper support Supports loaded paper. C Rear paper feed slot cover Prevents foreign substance from entering the printer. This cover should usually be closed. D Edge guide Feeds the paper straight into the printer. Slide to the edges of the paper.