Epson 20020 Manuel D’Utilisation

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Character Set Check
To check your character 
set, 
press 
and then 
Enter. 
The
characters that are included in the internal character generator
are displayed. Check the characters displayed on your screen
against this illustration:
After checking the characters, respond to the prompt:
Is the display correct (Y/N)?
If the characters displayed match the illustration, press Y and
Enter. 
If they do not match the illustration, press 
and then
Enter 
to display the error message.
Video Check
To check the video output of your monochrome adapter, press
4 followed by 
Enter. 
This check displays two different screens,
black and intensified white. First you see the black screen; press
any key to display the intensified white screen. Then press any
key to end this check.