What are these Tektronix paper rolls? (8.5-inch wide, 3.25-inch diameter)

I have some boxes of Tektronix paper rolls and I have no idea where they were used. The rolls are 8.5-inches wide and have a diameter of 3.25-inches. They are packed 6 to a box and I have around six boxes of these which are all sealed except for one. I can't find any obvious part numbers anywhere. The boxes say Made in Japan and have JAL Cargo stickers on them and were shipped to PDX. These might date back to somewhere in the 1980's. They came along with some Tektronix 4170 systems I picked up a while back. Anyone know what equipment would have used these rolls? Are they most likely thermal, or something else? Anyone have a use for these? Would they still be suitable for the original application after 25 years? The boxes are a bit heavy if someone has a use for these and wants them. -Glen