3-106 Phaser 6180 Color Laser Printer Service Manual
Error Messages and Codes
MACPHY Internal Loop Test Error
MACPHY Internal Loop Test error occurs.
Applicable Chain Link
■ Chain Link 116-393: MACPHY Int Loop Test Error (Diag Mode)
Initial Actions
■ Cycle printer power.
■ If the problem persists, follow the procedure below.
Troubleshooting Reference Table
Applicable Parts Wiring and Plug/Jack Map References
■ Image Processor Board, PL9.1.27
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 Reboot the printer. Does the error still 
occur?
Go to step 2. Complete.
2 Reseat the Image Processor Board. 
Does the error still occur?
Replace the 
Image 
Processor Board 
(page 8-89).
Complete.