@zens@merveilles.town not that i know of, anything of the sort about increasing the longevity of thermal prints boils down to "scan it"
@zens@merveilles.town i imagine you can make it last longer if you can laminate it in something that blocks UV light, but it's still not going to be a stable print
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@zens@merveilles.town longevity also depends on the quality of the thermal paper, i've printed on very cheap receipt rolls and had it fade in months whereas using a high quality fax thermal roll lasted for over a year so far under the same conditions
@zens@merveilles.town the quality of the image "burn" also influences it, a very finely dithered picture faded quicker than a highly contrasted text print for example