I have xerox wc 7655 and one I think big problem. When I turn on machine after 5-10 minutes restart and then show communication failure, also I can't print anything.. I always must wait about 15-30 minutes to turn on again. Here is my software version 040.033.53210
Please help me.. No one from local services don't know what is a problem.. I changed CMOS battery, and some yellow timekeeeper battery on back of machine.
Sounds like a DHCP error, set the printer IP to static (Use the same one it was assigned by DHCP) and the issue should resolve itself.
You may have made it worse by changing those batteries! Was it a firewire communications error or host to host? If so the problem is in the network controller. That is the box that sits on the back of the machine. Its like a small linux computer. It could be a bad hard drive or corrupt software.