Printronix ProLine 5 Series Manual page 127

There are also a number of groups of multinational character sets. To use one of
these sets, choose the desired group heading (such as European Sets) and
press ENTER. Then choose the desired set within that group (such as Roman
8) and press ENTER. Both the group and the desired set will be starred to
indicate selection. Character sets are shown in detail in the
Reference Manual .
ESC d Command
This menu option is for backward compatibility.
Even dot plot: This option interprets ESC d command as even dot plot.
Double high: This option interprets ESC d Command as double high.
Select this option for backward compatibility.
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Character Sets
Configuration Menus