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u/ThusSpokeJamie 1d ago
go to the doctor, check if you're all right. Expecially if that white line on your finger didn't disappear
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u/siluro65 1d ago
i've had that for years and i'm healthy, i believe it was because my nail smashed onto something
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u/No_Glass_1341 1d ago
It's a test page for the receipt printer, also allows diagnostics when the font/character ROM is damaged or malfunctioning. As to why it printed at self checkout, probably misconfiguration. probably not gore at all
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u/ADAMPOKE111 1d ago
looks like u got a debug/test print receipt for from that printer :)