for one reason or another the ink cartridges don't work in my printer if it has the "z10" on the front of package
Response from hp.comBy Amanda, HP Care, February 12, 2022
Hello there,
I am sorry to hear that you are handling a difficult situation.
It is unusual that the z10 label on the cartridge is preventing printing on your printer. For your knowledge, this label means the cartridge is for US or Canada only. The label is on the side of the cartridge and does not block the vents or the printhead. For more information, visit this link at https://support.hp.com/us-en/document/c05318138.
Since I suspect there is another root cause, I urge you to speak with our support team. Go to https://support.hp.com/us-en/contact-hp. We will settle this matter for you.