Mike,
When the SET PRINT ON command is issued, a print job is started. When the
??? command is issued, the current print job is closed, and a new raw print
job is opened.

In FoxPro for Windows, when a print job is opened and then closed, a blank
page will be printed even if no output was sent.

You need to create a generic print driver in FoxPro/DOS, and then use this printer driver in FoxPro for Windows.