Comment by mmh0000

1 day ago

If you have a UV flashlight, these dots are visible with decent vision.

And of course we have to include the Wikipedia entry:

https://en.wikipedia.org/wiki/Printer_tracking_dots

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mmh0000

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culi  1 day ago

And also EFF's attempt to track all printers that do or do not display tracking dots which they eventually prepended with

> (Added 2015) Some of the documents that we previously received through FOIA suggested that all major manufacturers of color laser printers entered a secret agreement with governments to ensure that the output of those printers is forensically traceable.

> This list is no longer being updated.

https://www.eff.org/pages/list-printers-which-do-or-do-not-d...