c.   Close the 500-sheet paper tray and reinstall the the 250-sheet paper tray. CAUTION:
The printer is extremely heavy with the optional paper tray installed.   Always
remove the optional paper tray before lifting the printer.   Use care or ask for
assistance when you lift the printer. 4.   Connect the power cord to the back of the printer. 5.   Connect the other end of the power cord to a grounded AC outlet. 6.   Switch the printer power on. Note:   If the operator panel displays any message other than READY, see
Appendix  B, “Printer Messages” on page  161 for more information. 7.   From the Paper Menu, set SOURCE to TRAY2 to use the 500-sheet paper tray as the default source tray (see “Selecting The Default Input Tray” on page  46). Note:   Many applications allow you to specify the input tray you want to use.   This
value will override any value set at the printer.   If your application does not let you
pick an input tray, use the Paper Menu to select the tray. 8.   Make sure you update your printer driver to indicate Tray 2 has been installed. Chapter 7.   Installing Printer Options 129