Our printer rolls/paper are compatible with all Enigma steam sterilisers/autoclaves and printers. There are two types of printer rolls/paper; thermal and non-thermal (ink). Thermal printer rolls do not require any ink as they change colour with the addition of heat. They are shiny in appearance and smooth to touch. Non-thermal printer rolls are printed by an inked printer ribbon. Typically they are dull in appearance and are slightly rough to touch. Non-thermal printer rolls are printed by an inked printer ribbon. Typically they are dull in appearance and are slightly rough to touch.