malole wrote:

I had a dream about a typewriter that was having platen problems because the drive-belt was incorrectly installed. It was a vacuum cleaner/typewriter hybrid machine. Very odd.

Good for cleaning desks. A powerful fan could suck debris off your desk top into a collection tray...

Actually, I can see the dream association between a typewriter and and a vacuum with a rug cleaning roller. I feel I have even seen an old cartoon with such a thing, but probably I am just try to discourage you from patenting this with the belief it was prior art, while I rush it into production!