Xerox 7300B - Phaser Color Laser Printer Service Manual page 104

Troubleshooting Procedure (cont'd.)
Step Question or Action
6 Is +34V supplied to the HVOLT connector Pin 2
on the Engine Controller Board.?
7 Inspect the high-voltage wiring harnesses.
Are the wiring harnesses defective?
3-88
Yes
Go to step [7].
Replace any
defective wiring
harnesses.
Phaser 7300 Color Printer Service Manual
No
Replace the
Engine Control
Board.
Replace in the
following order:
Transfer Unit.
HVPS.