Lexmark T430 User's Guide - Page 149
Solving display problems, Performing Self Test, Ready
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Troubleshooting Solving display problems Problem Operator panel displays only diamonds or is blank. 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 the messages do not appear, turn the printer off and contact the Lexmark Customer Support Center at 1-859-232-3000 or http://support.lexmark.com. Menu settings changed from the operator panel have no effect. 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. Solving display problems 149