Lexmark Optra Optra T User Manual page 18

Menus disabled
If your printer is configured as a network printer available to a num-
ber of users, it is possible that displays when you
Menus Disabled
press or from the state. Disabling the menus
Menu> <Menu Ready
prevents users from using the operator panel to inadvertently
change a printer default that has been set by the person managing
the printer. You can still clear messages and select items from the
when printing a job, but you cannot change other printer
Job Menu
settings. You can, however, use your printer driver to override printer
defaults and select settings for individual print jobs.
Using the Operator Panel and Menus 18