HP FIRMWARE updates are blocking and preventing any ink cartridge that is not HP OEM Original ( most expensive) from being recognized. HP printer will show error signal such as "older generation" cartridge or "incompatible, missing or used cartridge"

These public news articles explain the extent in depth :

IN THE NEWS
https://www.pcworld.com/article/3122137/hardware/firmware-update-for-hp-printers-bans-third-party-ink.html

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

https://www.techradar.com/news/hp-exploits-firmware-update-to-make-its-printers-reject-third-party-ink

CALSS ACTION LAWSUIT
There have been Class-action lawsuits related to this unethical practice :
https://topclassactions.com/lawsuit-settlements/lawsuit-news/858824-hp-ink-cartridge-monopoly-class-action-lawsuit-settles-1-5m/

If you have been a victim, you might be eligible to join the class action lawsuit. Filing closes March 2019.
https://www.hpprinterfirmwarelawsuit.com/

USERS CHOOSE OTHER BRANDS
Some users are preferring to purchase other brands of printers such as Canon or Epson, which often are the same price as the price of a set of HP Original cartridges.