What removes ink jet ink from paper?
It would be a good idea to try any experiments on another piece of paper that is not so important. Bubble jet ink soaks into the fibers of the paper. You may be able to remove it using a solvent. One common candidate for a solvent, is fingernail polish remover. However it contains some kind of oil that will remain in the paper. Bleach may work but might also damage the paper. UV light will cause ink to fade, but it might take a long time before you couldn’t see the ink at all. Laser ink is a plastic powder that has been melted onto the surface of the paper. It might be possible to apply some tape to it and carefully peel it off. There was a machine advertised a few years ago, that would allow you to re-use paper that had laser print. I gathered that it used some kind of sticky plastic that grabbed the print but not the paper. It was supposed to save trees by re-using the paper, but wasn’t very economical.