> The DEDA toolkit allows anyone to anonymize documents by removing the tracking dots at the software level
Sounds like the tracking tech is implemented in the proprietary drivers. If only the free software movement had filled its original purpose (freeing printer drivers¹) for more models…
¹https://www.fsf.org/blogs/community/201cthe-printer-story201...
Edit: looks like it may be in the firmware on the printer itself, not drivers on computers, as h-node warns of tracking even on printers with full compatibility with blobless, FSF-endorsed distros eg. Trisquel GNU/Linux-libre: https://h-node.org/printers/view/en/2215/HP-DeskJet-2700-ser...