Can confirm that bootleg printer ink is a thing. It used to be all I used. While sites dedicated to it off Amazon doesn’t cut it.
But as someone else pointed out, manufacturers have been adding “DRM” to cartridges in more recent years. Even in older printers, I will get complaints doubting the authenticity of the cartridges I was putting in.
Please forgive the multiple posts. My UI is glitchy af and reports errors when there were none.