Function: ps-spool-region-with-faces

Generate a PostScript image of the region and spool locally.
Like `ps-spool-region', but includes font, color, and underline information in
the generated image. This command works only if you are using a window system,
so it has a way to determine color values.

Use the command `ps-despool' to send the spooled images to the printer. (fn FROM TO)