User's Guide Printer Basics A B 13 A Memory card slot Insert a memory card. B Ink cartridge holder Install the ink cartridges. Ink is ejected from the print head nozzles underneath. A Document cover Blocks external light while scanning. B Scanner glass Place the originals. C Scanner unit Scans placed originals. Open when replacing ink cartridges or removing jammed paper inside the printer. A AC inlet Connects the power cord. B USB port Connects a USB cable.