When my last HP printer died, I had 5 or 6 new toner cartridges for it. I went to Staples and asked if I bought a new printer, could I swap my toner cartridges for ones that fit the new printer. They said no problem, I thought that was very nice of them. Happened a month later to a buddy of mine and he tried the same thing at Staples, and it worked. If you've already got your new printer, this might not work for you.
Why Johnny Ringo. You look like someone just...walked over your grave.