Xerox Phaser 6280 Service Manual page 278

Error Messages and Codes
3-142
Troubleshooting Procedure Table (continued)
Step Actions and Questions
20 Check the Right Side Harness for
continuity.
1. Disconnect P/J27 from the MCU
Board and P/J272 from the Front
Cover Harness.
2. Check continuity between P/J27 <=>
P/J272.
21 Check the ADC Sensor signal.
1. Disconnect P/J27 from the MCU
Board.
2. Is there +5 V across ground <=>
J27-7 pin?
Yes
Go to step 21.
Replace the
Transfer Unit
(page 8-8).
Phaser 6280 Color Laser Printer Service Manual
No
Replace the
Right Side
Harness.
Replace the
MCU Board
(page 8-86).