Highest-quality thermal paper rolls are guaranteed to work efficiently with your thermal fax machine printhead to provide crisp, clear black images. Roll is manufactured to OEM specifications using only papers that have passed the rigorous, IBM testing process. Fax paper is made sustainably, using forestry-certified paper and recycled cores.Highest-quality thermal paper rolls are guaranteed to work efficiently with your thermal fax machine printhead to provide crisp, clear black images. Roll is manufactured to OEM specifications using only papers that have passed the rigorous, IBM testing process. Fax paper is made sustainably, using forestry-certified paper and recycled cores.