Yes, I have ruined a few printouts using the isopropanol method ;-) . On that subject, can anyone recommend a source for the thermal paper used in the Silent? Marc
> On Oct 31, 2021, at 9:36 PM, Tony Duell via cctalk <cctalk@classiccmp.org> > wrote: > > 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