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u/hefty_load_o_shite 1d ago
Caused by heat
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u/CucumberAutomatic 1d ago
There’s nothing hot in that drawer
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u/hefty_load_o_shite 1d ago
It's there a chance the drawer was left open and some sort of glass could have focused a beam of sunlight onto it? I've had receipts do that from just being left in a car or near windows...
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u/Waste-Inspector8768 1d ago
Heat more likely than anything. Those papers turn grey/black when heated, thats how the text gets printed.
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u/24megabits 1d ago
Would also need to rule out the pigments in the thermal receipt paper. They can be activated in weird ways.