40-Column Character Set Check; 320X200 Graphics Mode Check - Epson 10020 User Manual

40-column Character
To check your 40-column character set, press
Enter. The character fonts 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
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 N and Enter
to display the error message.

320x200 Graphics Mode Check

To check your 320x200 graphics mode, press 5 and then
Enter. The screen displays three colored squares-light green,
brown, and red-against a cyan background. These four colors
are Color Set 0. If they are correct, press Y and then Enter.
Check
Set
Performing System Diagnostics
4 and then
to
the prompt:
D-17