KM 3650W copy=ok,..But won't print

[Guest]

Our in shop KM 3650W large fromat machine just quit printing, It won't ping and we have tried a second, known working, cable. Looks like the network is build into the formatter. I was just hit with this this morning so wanted to get any input before I take over the T/S. I have 2 infield calls ( and we all know how that goes) before I can work on this one ( so it may be tomorrow morning).
Thanks
Gar the Pilot