Chapter 42: Solving Display Problems - Lexmark C910 User Reference Manual

42
Solving display problems
If the suggested corrective action does not fix the problem, call your service representative.
Problem
Operator panel displays only
diamonds or is blank.
Menu settings changed from
the operator panel have no
effect.
Action
• Turn the printer off, wait about 10 seconds, and turn the printer on.
• Performing Self Test appears on the operator panel. When the test is
completed, Ready is displayed. If these messages do not appear, turn the
printer off and call the Lexmark Customer Support Center.
Settings in the software application, the printer driver, or the printer utilities are
overriding the settings made from the operator panel.
• Change the menu settings from the printer driver, the printer utilities, or the
software application instead of the operator panel.
• Disable the settings in the printer driver, the printer utilities, or the software
application so you can change settings from the operator panel.
137