399 Troubleshooting
Display Problems
Problem Action
After the printer is turned on, the
display on the LCD panel is
blank, keeps showing Please
wait..., or the back light is not lit.
Turn off the printer, wait for 10 seconds, and turn on the printer. Self
Test Message appears on the LCD panel. When the test is
completed, Ready is displayed.
Menu settings changed from the
operator panel have no effect.
Settings in the software program, the print driver, or the printer utilities
have precedence over the settings made on the operator panel.
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