Phaser 6130 Color Laser Printer Service Manual 3-71
Error Messages and Codes
Imaging Unit Errors
Replace Imaging Unit/PHD CRUM Error 
Applicable Chain Link
■ 091-916: Imaging Unit CRUM Error
Initial Actions
■ Cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ MCU Board, PL8.2.13
■ Imaging Unit, PL4.1.21
■ “Map 1 - Transfer Unit, Control Panel, 
Imaging Unit, Dispenser, Fuser” on 
page 10-8
■ “Map 3 - LVPS, Drive Motors, I/P Board, 
AC Power” on page 10-10
Troubleshooting Procedure Table 
Step Actions and Questions Yes No
1 Check the Imaging Unit type
Is the correct Imaging Unit installed in 
the 6130N? 
Go to step 3. Replace with the 
correct Imaging 
Unit, then go to 
step 2.
2 Does the error still occur when the 
power is turned OFF and ON?
Go to step 3. Complete
3 Reseat the Imaging Unit.
Does the error still occur when the 
power is turned OFF and ON?
Go to step 4. Complete
4 Check the connectors to the MCU 
Board and Imaging Unit.
Are P/J42 and P/J422 connected 
correctly?
Go to step 6. Reconnect the 
connector(s) P/
J42 and/or P/
J422 securely, 
then go to step 
5.
5 Does the error still occur when the 
power is turned OFF and ON?
Go to step 6. Complete
6 Replace the Imaging Unit (page 8-8).
Does the error still occur when the 
power is turned OFF and ON?
Replace the 
MCU Board. 
(page 8-59)
Complete