Preparing the Printer Use the following procedure to prepare the printer before installing the optional paper
tray: 1.   Switch the printer power off. 2.   Unplug the printer from the wall outlet. 3.   Remove the power cord from the back of the printer. 4.   Unpack the paper tray support unit and place it on a flat stable surface. 5.   Remove the tape and packing materials from the paper tray support unit. Note:   Save the packing material for future use. 6.   At the back of the support unit, hold down the cardboard packing material that is inside the paper tray as you pull the paper tray out of the support unit. 7.   Remove the cardboard from inside the paper tray and set aside the locking clips that are packed inside the tray. 8.   Save the packing materials for future use. 9.   If a duplex unit is already installed, go to “Placing the Printer with Duplex Unit on the Paper Tray Support Unit” on page  130.   Otherwise, go to “Placing the Printer
on the Paper Tray Support Unit” on page  127. 126 User’s Guide