Electronic Frontier Foundation (EFF) calls on HP to disable printer ink self-destruct sequence

http://arstechnica.com/information-technology/2016/09/hp-should-apologize-and-stop-sabotaging-non-hp-ink-cartridges-eff-says/

HP firmware update rejected cheaper third-party ink cartridges.

Tell HP — Say No to DRM 

HP recently activated a secret feature in its Officejet Pro printers (and possibly other models) that causes the printers to refuse to print with third-party or recycled ink cartridges.
Please join us in demanding that HP say no to DRM.

 Go to the link at the bottom of the article to sign the petition unless you want to pay $30 each for your ink cartridges. Or...Here's the link:

 https://act.eff.org/action/tell-hp-say-no-to-drm