10-29-2019 04:01 PM - last edited on 10-29-2019 04:18 PM by Cheron-Z
I too have a Mac and the HP Envy 4520 and get the same error. Any solution yet? It prints with other cxomputers but not mine and gives the "encryption code expired" error message.
10-29-2019 04:24 PM
See this post: "Encryption Credentials have expired." when attempting to print or scan from Mac OS or iOS devices.
It goes through generating a new certificate as well as picking a different print queue.