shaky
I am sorry that you have had bad luck.
We take it for granted now that printers will be compatible with a given OS. Unless you are using BGware, that will be the case for some time in the future.
That does not mean that they cannot be used. Before the Intarweb thing really came into being, people like I had to wade through Big Thick Manuals and ask friends how a Thai character set could be put through mumble-mumble systems and produce Thai at the other end. My lead programmer spent 36 hours straight on that baby.
The beauty is that this information is now shared. People whom you will never know have put countless hours' effort into breaking through. Even if it is fruitless, imagine how good you'll feel if did you crack it - and can tell every other MP700 user how it's done - and what you experienced?
You have nothing to lose but your BSODs
BOFH