Cleaner

I got this print dryer in my school. It uses a heater element to dry the RC prints. However, it is time to give the rubber rollers a clean up. What cleaner is recommended to give the rollers a cleaning? I guess it would have accumulated a number of years of student usage (i.e poorly washed prints)

Just the thing for cleaning rubber rollers is <drum roll> "Rubber Roller Cleaner":

Dead Link Removed

A heavier duty product - good if the rollers are glazed hard - is:

http://www.fixyourownprinter.com/specials/misc/chemicals/S03