HP 6978 does not print. Inserted new 3rd party 902XL black cartridge to replace empty 3rd party cartridge. Have tried several different new black 902XL 3rd party cartridges and get same message. Have performed all recommended troubleshooting steps multiple times. The problem started after "auto" firmware update. When I returned to "retailer" they inserted the "problem" cartridges in other machines and they showed me all of them worked perfectly. Retailer explained HP had changed something with their cartridge chips in certain machines/firmware making it impossible to use 3rd party cartridges any longer. I believe HP needs to remove that restriction in some way.
I have brought your issue to the attention of an appropriate team within HP. They will likely request information from you in order to look up your case details or product serial number. Please look for a private message from an identified HP contact. Additionally, keep in mind not to publicly post personal information (serial numbers and case details).
If you are unfamiliar with how the Community's private message capability works, you can learn about that here.
Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".