Power Supply Failure - Xerox Phaser 7400 Service Manual

Power Supply Failure

Applicable Status Code:
Code U6:
Power Supply voltage irregularly high.
Initial Actions:
Cycle the printer's power.
If the problem persists follow the procedure below.
Troubleshooting Reference Table
Applicable Parts
LVPS, PL3.1.4
Troubleshooting Procedure Table
Step Actions and Questions
1
Visually inspect the LVPS for damage or
excessive dust.
Is the LVPS damaged or dirty?
2 Check the LVPS output voltages at the
POWER connector on the Engine Control
Board.
Error Messages and Codes
Wiring and Plug/Jack References
Print Engine Map 3 (page 10-6)
Print Engine Map 6 (page 10-9)
Print Engine LVPS (page 10-39)
Yes
Clean the LVPS if
dirty. If damaged,
replace the LVPS
(page 8-121).
Replace the Engine
Controller Board.
No
Go to Step 2.
Replace the LVPS
(page 8-121) or
POWER harness.
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