Xerox Phaser 6280 - Page 251

Phaser 6280 Color Laser Printer Service Manual 3-115
Error Messages and Codes
5 1. Check the wiring harness
connectors P/J428, P/J2720, P/
J272, and P/J27 between the MCU
Board and Duplex Board.
2.Are the connectors securely
connected?
Go to step 6. Reconnect the
connectors.
6 Check the Duplex Unit Harness for
continuity.
1.Disconnect P/J428 from the Duplex
Board and P/J2720 Front Cover
Assembly Harness.
2.Check continuity between P/J2720
<=> P/J428.
Go to step 7. Replace the
Duplex Unit
(
page 8-99).
7 Check the Front Cover Harness for
continuity.
1.Disconnect P/J2720 from the Front
Cover Harness and P/J272 from the
Right Side Harness.
2.Check continuity between P/J2720
<=> P/J272.
Go to step 8. Replace the
Front Cover
Harness.
8 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 and
P/J272.
Go to step 9. Replace the
Right Side
Harness.
9 Check the Duplex Board signal.
1.Disconnect P/J27 from the MCU
Board.
2.Are there +24 V across ground <=>
J27-17/J27-18 pin when the
Interlock is activated?
Replace the
Duplex Unit
(
page 8-99).
Replace the
MCU Board
(
page 8-86).
10 1.Check the detailed error code (press
the Up and Down buttons
simultaneously).
2.Does code “01” display on the
Control Panel?
Go to step 11. Go to step 1.
11 1.Check wiring harness connectors
between the Main Fan and the LVPS.
2.Is P/J502 securely connected?
Go to step 12. Complete.
12 Does the error still occur? Go to step 13. Complete.
13 1.Perform the Fan test (page 4-46):
Service Mode > Engine Diag >
Motor Test > Fan.
2.Does the Fan operate properly?
Replace the
MCU Board
(
page 8-86).
Go to step 14.
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No