Locking Menus To lock menus, simultaneously press the Item   key and the Value - key
while you power on the printer. When menus are locked, users can view
menu settings, but they cannot change them. Users can print configuration
pages and demo pages while menus are locked.
To unlock menus, simultaneously press the Menu   key and Item   key while
you power on the printer.
Note:  You can also lock and unlock menus from the Printer Web Pages. See “Printer Web Pages” on page 8. Printing the Printer Configuration Page 1.   Press the Menu   key once. TEST MENU appears in the message display       area.
2.   Press the Item   key once. PRINTER CONFIG appears in the message
      display area.
3.   Press the Enter key to print the configuration page. If the printer is online,
you see the message JOB QUEUED and the printer configuration page prints.
If the printer is offline when you press Enter, you see the following
message:
PRESS ONLINE TO PRINT Press the Online key to print the page. 24    Infoprint 21: User’s Guide