IBM S544-5343-03 - Manual (Page 175)

10. Switch the printer power on.
Note: If the operator panel displays any message other than READY, see
Appendix B, “Printer Messages” on page 191 for more information.
CAUTION:
The printer is extremely heavy with the optional paper trays installed.
Always remove the optional paper tray or trays before lifting the printer. Use
care or ask for assistance when you lift the printer.
11. From the Paper Menu, set SOURCE to TRAY2 to use the upper tray or TRAY3 to
use the lower tray as the default source tray (see “Paper Menu” on page 77).
12. Make sure you update your printer driver to indicate Tray 2 or Tray 2 and Tray 3
are installed.
Chapter 7. Installing Printer Options 155