Man its cheaper to just replace the pad. Once you clean the pad then you have to let it dry and that will take a half a day. Then you have a black pad going back in there that will not be able to absorb correctly and it will just make a mess.
Call your local dealer and buy a new set of pads for it.
Remember there is 3 pads. They are referenced as an "A" & "B" pad. It takes 2 "A's" & 1 "B". Make sure to pay attention to how you take them out of the tray so you put the new ones back in correctly.
Clean the tray with Denatured alcohol. Its much cheaper and will not hurt the plastic tray. I go to Walmart and get a tub of Special Kitty cat litter, and just pour the liquids into that. Its easy to dispose of when the litter gets saturated and it has a lid. But one tub will last a year easily with just one printer in the shop.
Have a good one