On an HP 9100 series (the 9120) inkjet printer we have nothing but paper jams. Perhaps one out of ten sheets of paper will print. This printer used to work just fine, then got to jamming half of all jobs. Now it jams even doing its own diagnostic page. It hasn' t really had that much use, so I don't see how the rollers would be worn down (28,000 pages over two years). We've cleaned the rollers and checked every single area we can reach. Nothing helps. HP says they don't repair these machines since "it isn't worth it..." but would be delighted to ship me a new one for $250 (the original unit was close to $1,000. That doesn't seem to be a good deal. Any suggestions? Other than tossing it out and starting with someone else's....we still have a lot of cartridges to be used!