Convert a tex dvi file to g3 fax format
dvi2fax [-hi|-lo] file[.dvi] [options for dvips]
dvi2fax uses dvips(1) to convert a TeX DVI file to PostScript, then gs(1) to convert the PostScript to G3 fax file format.
-hi use high fax resolution (204x196 dpi) (default).
-lo use low fax resolution (204x98).
dvips options can follow the file name.
Example: dvi2fax foo -l 2
dvips(1), gs(1).