As if we don’t have enough to think about . . .

When set in the non-default ‘Normal’ image quality mode, some Xerox scanners and photocopiers may change characters, including numerals, in scanned documents. The initial finding of this problem was made earlier today by German researcher D. Kriesel. Kriesel demonstrated that on a Xerox WorkCentre models 7535 and 7556 scans of certain documents with numbers in them resulted in the numbers being different in the paper and scanned image.

via Xerox scanners alter numbers in scanned documents | ZDNet.