The symptom from the faulty printer power cable was that the printout would start printing, but after a couple of lines it would quit printing. There was never any error message on the screen from the operating system or application software.
The sequence of events for the original fault was the following:
The correction was to replace the connector on the transition board side of the printer power cable. You can tell if it has been fixed if when viewing the two wire cable, it is connected to the transition board with a white four pin connector instead of reddish brown two pin connector. You'd have to remove the front panel to view the transition board connections.