can't change the font size with PRINT comment

Hello Everyone,

I'm using RBuilder, Delphi 5 and the network printer HP LaserJet 4000
series. In my Delphi application, I execute the following comment:

MyReport.DeviceType := 'Printer';
MyReport.ShowPrintDialog := true;

The report ALWAYS prints out with FONTS (Arial, 10, Regular).
How can I change the FONT size?