Just a thought for future reference on the future purchase side of things.
As a rule I avoid multi function devices as much as possible because it's often a case of when one goes, it all goes...
In this instance, scanners are pretty darned cheap and getting a decent replacement printer as seperate shouldn't be too bad..
And as far as getting shot of this particular unit goes.. if you do decide to just give up, please don't do the whole hammer thing... take a look about and see if some local kid would like to learn something... I'd guess that there'd be at least one who would relish the opportunity to take something apart to see if they can understand or even fix it, without getting yelled at for a change
*yes you can see how I learned about cars, PC's, radios, etc...