That's not the original source, that's the video that made it go viral. The original source, as detailed in the article, is online reports from people (like me)

That's not the original source, that's the video that made it go viral. The original source, as detailed in the article, is online reports from people (like me) who have experienced a Brother printer stop working when 3rd party toner is installed and that swapping the DRM chip fixes the issue.