Hi Bruce,
When using the 'Generic/Text Only' printer it will not matter what font you choose in the designer as it will use the printer default font and font size.
I have never attempt to change the font size when using that driver.
You might try using 'Courier' and selecting a range of font sizes to test with the printer.
The only other though would be to have a label before/after where you want the font change that has the escape sequences to change the font size. Not sure that would work as I have never attempted it.
If you want multiple font sizes you might have to use the correct windows printer driver.
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Chris McDonell
Softrak Systems Inc.