Just a FYI Guys regarding these kits.
Usually they contain one or two pieces of "special" paper. This paper is great at picking up toner, but there's a couple of downsides:
1: Usually they're quite abrasive, compared to normal paper, and can wear the rubber pickups/rollersr in your printer
2: The toner they picked up can be deposited elsewhere in your machine, perhaps making the problem worse.
3: Some of these cleaning sheets can leave a large amount of "lint" when they pass through the rollers....sometimes the paper is very stiff and asorbent.
My $.02