3-76 Phaser 6130 Color Laser Printer Service Manual
Error Messages and Codes
Laser Unit Errors
Laser Error
An error was detected in the Laser Unit.
Applicable Chain Link
■ Chain Link 061-370: Laser Error (ROS Failure)
Initial Actions
■ Cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ ROS (Laser Unit) Kit, PL4.1.99
■ MCU Board, PL8.2.13
■ “Map 2 - Laser Unit, Feeder Assembly” 
on page 10-9
■ “Map 4 - Toner Dispenser Motors, HVPS, 
MCU” on page 10-11
■ “Laser Unit” on page 10-22
Troubleshooting Procedure Table 
Step Actions and Questions Yes No
1 Check the Laser Unit for correct 
installation. 
Is the Laser Unit correctly installed?
Go to step 3. Reinstall the 
Laser Unit. Go 
to step 2.
2 Cycle the power.
Does the error still occur?
Go to step 3. Complete.
3 Check the wiring harness connectors 
P/J40, P/J41, P/J411, and P/J412 
between the MCU Board and the Laser 
Unit. 
Are the connectors securely 
connected?
Go to step 5 Reconnect the 
connectors. Go 
to step 4.
4 Cycle the power.
Does the error still occur?
Go to step 5. Complete.
5 Replace the Laser Unit (page 8-31). 
Does the error still occur?
Replace the 
MCU Board 
(page 8-59).
Complete.