I believe VFP tries to be smart, and sends a Form Feed every time you change printer. Anyway, there is an easy way around this.

Set printer to dump.dmp && dumo.dmp is a file
Eject && forces a Form feed
Set printer to name (cPrinter)
Erase dump.dmp

>Hi all,
>
>Why does the printer ejects a page when I send this ESC codes to it? We are using the LQ-570e printer. But even when selecting a laser printer, a form feed still occurs.
>

>cPrinter = getprinter()
>if !empty(cPrinter)
>   set printer to name (cPrinter)
>   set printer on
>   * Change the font to COURIER
>   * This line causes the printer to issue a form feed
>   ??? chr(27)+chr(107)+'2' && ASCII ESC k n; where n=2 for Courier.
>   ? "Hello world"
>   set printer off
>   set printer to
>endif
>