You think they are useless even though they are in the original package, sealed? They are free also so I figure it would be worth it to try using them. These are all expired, I believe. Stapes, for the Canon ink jets, said it would replace these if there is any problems with it, if there is a Staples in your area. The Canon ones from Staples don't have an expiration date. The Xerox one doesn't have an expiration date either but the ink is visible and very liquid.