
15. After the printer warms up, the  READY message displays on the operator  panel.
Note:  If  message display area shows solid rectangles,  make sure the I/O cable is
attached firmly to both the 2000-sheet  input drawer and the options controller  card.
Also make sure the I/O cable  connectors are plugged into the appropriate
connector.
 Important 
To confirm that you have correctly  installed the 2000-sheet input drawer, print  a
configuration page. The report should show  2000-sheet input drawer (Tray 3)
installed. See “Example 1 — Printing  the Printer Configuration Page” on page 32.
   Chapter 7. Installing Printer Options 179