Instruction manual

50
Chapter 3 Troubleshooting Procedures
temperature at or above 40° Celsius (104° Fahrenheit) or that is dirty
enough to create blockage of the cabinet fan vents. The printer must
never be run at ambient temperatures greater than 40° Celsius (104°
Fahrenheit). If the printer is located in such an environment, relocate
it to a cooler, cleaner area.
1. One or more hammer coils are overheating. Inspect printer environment
for severity. (See NOTE above.)
Advise the user to move the printer to cooler, cleaner location.
2. Check the kinds of print jobs the user is running: look for very dense
graphics and layouts.
Advise the user to run jobs in smaller batches.
3. Power off the printer. Remove the paper path or pedestal top cover.
Check all fan cable connections.
Connect fan cables.
4. Power on the printer. Verify that all fans operate.
Replace any fan that does not operate.
5. Inspect vents and fan airways for obstructions. Look underneath cabinet
models for items blocking the cabinet exhaust vents.
Remove any obstructions from vents and airways.
6. Install the paper path or pedestal top cover. Load paper. Run the “All E’s”
print test for 5 to 10 minutes.
If the message appears, replace the shuttle frame assembly.
7. Run the “All E’s” print test for 5 to 10 minutes.
If the message appears, replace the CMX controller board. Record
the message and return it with defective CMX board.
Control panel blank
1. Power off the printer. Remove the paper path or pedestal top cover.
Check all cable connections into the CMX controller board; make sure the
control panel cable is seated in connector J110 on the controller board.
Connect all cables.
2. If the printer has the expansion-CT board, check the CT cable
connections and the adapter connection to the CMX controller board.
Connect all cables. Make sure the 60-pin expansion adapter is
correctly seated in the CMX controller board and the CT board.
3. Power on the printer. Inspect the control panel display and cooling fans.
If the control panel is blank and the cooling fans come on, replace the
control panel cable assembly and/or the control panel, as required.
4. Power on the printer.
If the control panel is blank and the fans do not come on, replace the
CMX controller board.