Hi Virgule,
its a little bit difficult to simulate this with a plc5 driver - there are 300 various printqueues. But at the moment the problem has been fixed. (old drivers has been removed, isolation-modus has been set, the vm was moved on faster hard discs etc..). Thanks for the tip with the speed, but ive already checked our switches and the network-cards of the printers. Theyre full duplex. The documents were also various (pdf, doc,xls...), the size too.
Hope now it works for a long time ! Thanks,
Amon