In article , Lobster writes
Nothing at all. I love those old HPs, they just keep going.
Not unusual. The paper feed rollers age and become hard, which causes jams. The most common are failure to pick paper up and failure to eject it (the exit rollers begin to turn slower than the fuser and the paper "concertinas" and jams.)
It never actually enters the fuser?
It is a very good site and I can recommend them. I have a LJ4m at a remote site which began jamming the paper on entry; fixed that with the appropriate kit, then it started jamming on exit (grr) and the kit to fix that is sitting by my foot as I type. It comes with (a not very clear) video CD showing how to strip the printer and fit the new parts. fixyourownprinter ships from the US but the parts arrived very quickly in my case.
Hmm. It could just be that the paper is moving too slowly (because of slipping rollers) and isn't reaching the fuser when the electronics expect to see it. There is a paper sensor switch in the fuser. Has anyone ripped the paper out of the printer? That's fatal to sensors.
I think in your case the first thing I would try is a kit of pickup/feed rollers. Some of them are very easy to fit (e.g. pickup roller), but unfortunately the feed roller is a swine to fit.
One last thing: try another cartridge first.