Everytime I turn on my PC, my printer will fudge around, making noises for awhile, then anywhere between 2 and 10 minutes after I turned the computer on, it'll print out a sheet of paper with just a U in the corner.

I now have about 70 sheets of paper with a U in the upper corner and am starting to get ticked off.

Anyone know why it's doing this and what I can do to fix it?