Error Messages, Codes, and Procedures 3-25
Laser Unit Failure - U3-3 Laser Power
The Laser Assembly has failed.
Applicable Error Code
Laser Assembly Failure - U3-3 Laser Power
8
Check for +24 V to the Motor
Is there +24 V across P/J214-1/-2 (+) <=>
ground?
Replace the Motor
Assembly
(
page 8-84).
Replace the
Engine Logic
Board
(
page 8-89).
Laser Assembly Troubleshooting Reference
Applicable Parts References
■ Drum Cartridge
■ Laser Assembly
■ Engine Logic Board
■ Print Engine P/J Laser and Exit PWB (page 10-7)
■ Print Engine laser Assembly Wiring (page 10-29)
■ PL5.1 Laser, CRU and Toner Dispense (page 9-32)
■ PL8.1 Print Engine Electrical (page 9-40)
Laser Assembly Troubleshooting Procedure
Step Actions and Questions Yes No
1
Check the Drum Cartridge installation.
Is the Drum Cartridge installed
properly?
Go to Step 2. Correct the
installation.
2
Check the Laser Assembly installation.
Is the Laser Assembly installed
properly?
Go to Step 3. Correct the Laser
(
page 8-74).
3
Check the Laser Assembly connection.
Are P/J140 and P/J406 connected?
Go to Step 4. Connect the
Laser.
4
Check the Laser Assembly connections.
Are P/J130, P/J620 and P/J406
connected?
Go to Step 5. Connect P/J130,
P/J620 and P/
J406.
5
Check continuity between the Laser
Assembly and the Engine Logic Board.
Is there continuity on each wire
between P/J140 <=> P/J406?
Go to Step 6. Repair the wiring.
Drum Motor Troubleshooting Procedure (Continued)
Step Actions and Questions Yes No
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