Ars Technica: Canon can’t get enough toner chips, so it’s telling customers how
to defeat its DRM.
[1]https://arstechnica.com/tech-policy/2022/01/chip-shortage-has-canon-telling-c
ustomers-how-to-skirt-its-printer-toner-drm/


   For years, printers have been encumbered with digital rights management
   systems that prevent users from buying third-party ink and toner
   cartridges. Printer companies have [2]claimed that their chip-enabled
   cartridges can “enhance the quality and performance” of their
   equipment, [3]provide the “best consumer experience,” and “protect [the
   printers] from counterfeit and third-party ink cartridges.”

   Left unsaid is the fact that requiring first-party cartridges also
   ensures a recurring revenue stream. It’s an old business model—Gillette
   sold its razor handles cheaply to sell more razors, for example—and
   it's one that printer companies have enthusiastically
   embraced. [4]Lexmark, [5]HP, Canon, Brother, and others all effectively
   require users to purchase first-party ink and toner.

   ...

References

   1. https://arstechnica.com/tech-policy/2022/01/chip-shortage-has-canon-telling-customers-how-to-skirt-its-printer-toner-drm/
   2. http://go.redirectingat.com/?id=100098X1555750&xs=1&url=https://www.usa.canon.com/internet/portal/us/home/products/groups/supplies-productinformation&sref=rss
   3. http://go.redirectingat.com/?id=100098X1555750&xs=1&url=https://web.archive.org/web/20170621052636/https://newsblog.ext.hp.com/t5/HP-newsroom-blog/Dedicated-to-the-best-printing-experience/ba-p/451&sref=rss
   4. https://arstechnica.com/tech-policy/2009/12/what-is-drm-doing-in-my-garage/
   5. https://arstechnica.com/information-technology/2016/09/hps-drm-sabotages-off-brand-printer-ink-cartridges-with-self-destruct-date/