Instruction manual
56
Chapter 3 Troubleshooting Procedures
If the messages appears, replace the CMX controller board. Record
the message and return it with defective CMX board.
EXHAUST FAN FLT Message
1. Exhaust Fan Fault. Sensors cannot detect current in the fan circuit.
Cycle power. If the message appears, press CLEAR.
2. Check that the exhaust fan is connected to exhaust fan cable connector
J307.
Connect the fan cable connector.
3. Power off the printer. Remove the paper path. Disconnect connector
P107 from the CMX controller board. Test connector P107/EHF for shorts
or opens. (Refer to the Main Wire Harness Test Tables in Appendix A.)
Replace components that fail test.
4. Make sure connector P107/EHF has a good connection at J107 on the
CMX controller board.
Connect P107 to the CMX controller board.
5. Inspect for obstructions of airways and vents. Check for items beneath
the printer blocking cabinet vents.
Remove obstructions. Make sure cabinet exhaust fan vents are not
blocked.
6. Power on the printer. Check for fan operation.
If the message appears or the fan doesn’t work, replace the exhaust
fan.
7. Power on the printer.
If the message appears, replace the CMX controller board. Record
the message and return it with defective CMX board.
FIRMWARE ERROR Message
1. Application software tried to perform an illegal printer function or
damaged memory is detected on the CMX controller board. (If the
message appears at power-up, replace the CMX controller board. Record
the message and return it with defective CMX board.)
Cycle power. Run the print job. If the message appears, download the
emulation software again (page 130).
2. Cycle power. Run the print job again.
If the message appears, replace the flash memory.
3. Cycle power. Run the print job again.
If the message appears, replace the CMX controller board. Record
the message and return it with defective CMX board.
4. Power on the printer. Run the print job again.
If the message still appears, there is an application software error.
Use your local support procedure to request assistance.