Word has no idea what the correct envelope
orientation is for Epson inkjet printers. Here are a couple of fixes you
could try. The first involves a simple registry hack.
Run Regedit and locate the entry for the errant
printer under:
HKEY_CURRENT_USER\Software\Microsoft\Office\10.0\Word\Printername
(Here EPSON Stylus COLOR 480SX - a cheap inkjet that I used with my
laptop until it broke.)
Change the EnvFeed_7 entry to '3' (or 2
if the envelope appears upside down in the wizard).
The registry entry above is for Word 2002. I see no
reason why this will not work for Word 97, and it does work for Word
2000
and 2003 - substitute \8.0\ or \9.0\ or \11.0\ for \10.0\ as
appropriate.
It has not
been tested with Word 2007/2010, but similar principles apply. In which
case Word 2007 would be \12.0\ and Word 2010 would be \14.0\