Hi I'm having a problem with my Versacamm sp540v it stops printing, the first time that happened I replaced the ethernet cable ends and that fixed it for a while now its stoping right towards the end of my prints. Last time it also started at end of prints then got worse. I When I first got the printer I replaced the network card its a used one. I was told it could be the main board, I've also seen people say servo board I believe. Any help would be great most techs won't help because of the age of the printer.