The printer and toner have been reliable for several years, but when I had a toner cartridge go bad after only a couple months of use (perhaps 5% of the toner) there was no way to return/exchange. HP support was a bot, or based on the serial number of my printer which is out of warranty so there was no way to get support based on the failed cartridge and no way to talk to a human about it.
Response from hp.comBy Mary, HP Care, May 7, 2021
Hi there,
I am sorry that the cartridge went "bad" so early. That sounds irritating, but please know that we take your feedback seriously.
If you feel that it stopped printing because of a defect, you have the option to see about returning it. Simple instructions for that can be found at: store.hp.com/us/en/cv/returnsandexchanges
The toner cartridges have a good warranty. There is no time limit, but the cartridge can't be low. If it is past time for the HP Store purchases warranty, you can contact us about our toner warranty: hp.com/contactHP