Lexmark CX725
Step 1
Turn the printer off, and remove the controller board shield. See Controller board shield removal.
Check the cable connections. See Controller board removal for proper disconnecting and connecting of cables from controller board.
Are all cable connections secure?
Go to step 3.
Go to step 2.
Step 2
Reconnect any loose connections.
Print multiple print tests.
Does the problem remain?
The problem is solved.
Step 3
Replace the fuser drive motor.
Go to step 4.
Step 4
Replace the controller board. See Controller board removal.
Contact the next level of support.
Does a 900 error message appear on your printer? Check out the following steps to troubleshoot the problem.
An “Invalid Engine Code” error message indicates a problem with one of the internal operating programs of the printer. The printer is not able to receive, and process print jobs until the printer is reset.