Just to add to Neal's post... I haven't used that type of dryer in 30 years, but as I remember (which is always questionable), the prints have to be completely dry to come off. This is the same as the old Ferrotyping of prints. If you try to peel the not-quite-dry print off the plate, it will stick. If you leave it alone long enough, the print will pop off the plate by itself. The heated dryer is the same, but, well, heated to dry the print faster.
Back to my memory. With the emulsion facing the cloth, it is very easy to get an imprint of the cloth texture on the print surface. This never worked for me.
With the emulsion facing the metal, dry until the prints are dry. Do not try to peel them off. Lift the cloth and if the prints are dry, they will slide off the metal by themselves.
And yes, a _clean_ metal surface helps a lot, but I never used anything special on my dryer. Unfortunately, I don't remember what I did use?
Good luck with it...