Phaser 6180MFP Multifunction Printer Service Manual 3-111
Error Messages and Codes
Check Sum Error
Checksum is invalid. The following troubleshooting procedure applies to this 
error.
Applicable Chain Link
■ Chain Link 016-744: Check Sum Error (Download Check Sum 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
■ Image Processor Board, PL9.1.20
Troubleshooting Procedure Table
Step Actions and Questions Yes No
1 1.Check the printer firmware.
2.Does the firmware have the correct 
version?
Go to step 2. Update the 
firmware (refer 
to “Firmware 
Update” on 
page A-3).
2 1.Check the Image Processor Board 
for correct installation. Reseat the 
Image Processor Board 
(page 8-90).
2.Does the error still occur?
Replace the 
Image 
Processor Board 
(page 8-90).
Complete.