We have a customer with a C353 inconveniently located 90 miles away, so trial and error wouldn't be too productive.
The machine is tripping the circuit breaker in their new building, apparently it did in the old one as well but they never called about it, and there's issues when the machine is plugged into a surge protector as well. This outlet is a dedicated circuit, with no other devices plugged into it. They've also tried different outlets on different circuits, with no luck. The chaos occurs when they try to use the machine for printing or copying, and it doesn't necessarily happen on the first copy.
Between me and the other 3 techs at my company we think it most likely could be the power supply board, and one of us thinks that the fuser could also be causing the short. We have no record in service for when this machine's fuser was replaced, as the customer's a fairly light user of printing/copying, mostly scanning.
There was a faulty fax kit in the machine as well that I was planning to replace on my next visit. I'm not sure if it's necessarily related, but the fax kit wasn't getting dial tone, or any sort of communication, despite being enabled in service mode for the appropriate slot. Could it be related because of how the mount kit attaches to the board in the back? (basically, could the board in the back be bad? forget if it's the mfpb or prcb on that machine)
Any suggestions would be appreciated.