On Sun, Oct 31, 2021 at 11:40 PM Fred Cisin via cctalk <cctalk@classiccmp.org> wrote:
> The THERMAL paper that I used for the Silent 700s was "white" and very > slowly changing to yellow or brown. Didn't hold up very well to heat > and/or sunlight. Another thing that ruins thermal printouts is propan-2-ol (isopropyl alcohol). It turn the paper black as if it has been heated. Since I normally have a can of said solvent on my bench for cleaning disk drive heads, connectors, etc, I have to be careful if there's a thermal printer about. -tony