➢ Something strange I have in the network, because making you ping ip of the printer, lost packets (8 of 10 330).
I have seen packet loss like this lots of times when there is a duplex mismatch between the end device and the switchport, or even on the link between two switches. Most often, I have seen half-duplex autonegotiated when one side is set to Full Duplex, and the other is set to auto. I would start by comparing the duplex settings of the printer and the port it's connected to, then move on to the link between the switches.