This usually means that the wrong font is being used.
There are a number of reasons why this might be. You could try checking whether:
|•||EscapeE has been configured to ignore fonts: see Optimizing the configuration.|
|•||A font substitution has been requested: see Font tables.|
|•||The font would have been resident on the target printer but EscapeE does not have it: see To display resident fonts table.|
|•||There was a problem in reading a download font: see Handling fonts.|