Step 1  Enter the Diagnostics menu, and then navigate to: Additional input tray diagnostics > Motor tests > Pass‑through (tray [x]) Touch Start.
Does the motor run? | Go to step 4. | Go to step 2. |
Step 2 Check the motor cable for proper connection, and reseat if necessary. Does the problem remain? | Go to step 3. | The problem is solved. |
Step 3 Replace the motor. See Motor (550-sheet tray pass‑through) removal. Does the problem remain? | Go to step 4. | The problem is solved. |
Step 4 Check the motor for noise. Does the motor sound abnormal or do the gears make a grinding sound? | Contact the next level of support. | Go to step 5. |
Step 5 Perform a print job. Does the problem remain? | Go to step 6. | The problem is solved. |
Step 6 Replace the controller board. See 550-sheet tray controller board assembly removal. Does the problem remain? | Contact the next level of support. | The problem is solved. |