Post by C++ pays the bills
@madeindex Yep: laser printers encode a timestamp and the serial number of the printer in a pattern of yellow dots on the printed page. Next time you can't print a black and white letter because you'…
@madeindex Yep: laser printers encode a timestamp and the serial number of the printer in a pattern of yellow dots on the printed page. Next time you can't print a black and white letter because you'…