If your HP Printer is saying your ink carts are damaged, read this
http://arstechnica.com/information-tech ... ruct-date/
and this
https://www.reddit.com/r/technology/com ... artridges/
And then download this to rollback the firmware
http://www.filedropper.com/manualhp81008600861086208630
and this
https://www.reddit.com/r/technology/com ... artridges/
And then download this to rollback the firmware
http://www.filedropper.com/manualhp81008600861086208630