nostr:npub13vay0xd8776zc8wpjfa4rtmf0vxmsxh5qmerc8qw653w9nyd5jds6maqrv nostr:npub1wj863g5d8grekajsm6ggsuu63n3klk7kmqasq3t9k9sf0paauwgq3jn95j this specific system prints the exact date and time of printing plus the serial number of the printer. This serial number can be traced to manufacturer and then distributor and then the store and then they can pull card records to find who purchased it

Or if paid in cash they can try to get security camera footage for the time of purchase.

It's also probable that other forensic methods of printing identifying information are used by printers besides the yellow dots