Performing this self test resets the printer configuration to the factory default values. Perform a sensor calibration after this self test. (See Calibrating the Ribbon and Media Sensors.)
Turn off (O) the printer.
Press and hold
FEED + PAUSE
while turning on (I) the printer.
Hold
FEED + PAUSE
until the first control panel light turns off.
The printer configuration is reset to the factory default values. No labels print at the end of this test.