I am trying to print on an HP ENVY Pro 6455. I have put 2 separate black HP 67XL cartridges in the printer only to get an error message that the cartridges are empty.i have cleared the brass on the printer connections where the cartridges go and turned the printer on and off and back on again. Still getting an error message. How do I get reimbursed for these cartridges so I can buy new ones? The color cartridge is working fine. I did not change that.
Thank you,
Patty McKelvie