Network printer not printing possibly due to network issue

Hello. I am experiencing an issue with a network printer that fails to print. I have performed the below troubleshooting steps without success:

• Restarted the printer: it works for a few minutes after which it stops printing again.
• Changed the Ethernet cable which connects the printer to the network point.
• Connected the network printer to three other network points.
• There is a second network printer which is not experiencing these issues and is connected to the same switch as the problematic printer. So I swapped the network connections that connect both these printers to the same switch. The result: the second printer is working fine, the other printer is still experiencing issues.
• Restarted the switch: as a result the printer works with out issues for ~20 minutes, after which the printing issues return.

Another observation is that if I try to physically log into the printer, I get a connection timed out message.

What could be the best way to find the cause of these printing issues?

I have port mirroring configured so I can view the network traffic of the problematic printer in Wireshark. Is there any specific traffic I should look out for that may be causing the printer to not print?