Hello,
We have a networked HP CP2025 and it started with error 79. It was rebooting itself after this error.
We had a simillar printer so I swapped them; same issue.
I removed the network cable and error disappeared.
The driver oon the print server was not Universal. I installed Universal PCL5 and it is working without the error and reboot.
I will wait until a clear signal is received from users.
P.S. This post and its reply have been split off from other thread, and edited its subject. - Hp Forum Moderator