The camera can use a roll of new thermal receipt paper — which can be found on Amazon for about $1 for an entire roll if you buy in bulk — or users can simply feed the camera their old receipts.

He blackened the paper by rubbing it with sandpaper, as the paper used for till receipts is sensitive to heat so responded to the friction. Malouin worked in the space 6–9 October.

According to a study published in the Oct. 22 issue of PLOS ONE, thermal paper— a common type of receipt paper— contains bisphenol A (BPA).

Thermal paper, sometimes used in cash register receipts, may be a potential source of exposure to the hormone disruptor bisphenol-A (BPA), according to a study published October 22, 2014 in the ...