Xerox Phaser 6280 Service Manual page 274

Error Messages and Codes
3-138
Troubleshooting Procedure Table (continued)
Step Actions and Questions
20 Check the ADC Sensor signal.
1. Disconnect P/J27 from the MCU
Board.
2. Is there +5 V across ground <=>
J27-7 pin?
1. Replace the corresponding Print
21
Cartridge (page 8-10).
2. Does the error still occur?
Yes
Replace the
Transfer Unit
(page 8-8).
Replace the
Laser Unit
(page 8-50).
Phaser 6280 Color Laser Printer Service Manual
No
Replace the
MCU Board
(page 8-86).
Complete.