3-50 Phaser 6280 Color Laser Printer Service Manual
Error Messages and Codes
20 1.Check the wiring harness
connectors P/J25 and P/J251
between the PH Drive Assembly and
the MCU Board.
2.Are the connectors securely
connected?
Go to step 21. Reconnect the
connectors.
21 Check the Right Side Harness for
continuity.
1.Disconnect P/J25 from the MCU
Board and P/J251 from the PH Drive
Assembly.
2.Check continuity between P/J25 <=>
P/J251.
Go to step 22. Replace the
Right Side
Harness.
22 Check the PH Drive Assembly signal.
1.Disconnect P/J25 from the MCU
Board.
2.Is there +24 V across ground <=>
J25-1/J25-2 pin when the Interlock
Switch is activated?
Replace the PH
Drive Assembly
(
page 8-76).
Replace the
MCU Board
(
page 8-86).
Troubleshooting Procedure Table (continued)
Step Actions and Questions Yes No
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