Denatured (wood) alcohol is available in the hardware
stores, Walmrt, etc
and is great for cleaning heads and rubber rollers.
Also another reason not to use stock rubbing alcohol is the water content as
it can cause corrosion. Isopropyl alcohol made for head cleaning is over 90%
alcohol but harder to find and way more expensive, but worth it with the end
effect.
90% Isopropyl used to be in the local drug stores for $1.00.
It seems the 70% stuff seems to be crowding it out on the shelves... but
it still can be found if you look for it.
Bill