Step 1 Reset the printer. Does the problem remain? | Go to step 2. | The problem is solved. |
Step 2 Check the blue LED on the control panel. Is the LED on? | Go to step 3. | Go to step 4. |
Step 3 Check the Ethernet and controller board LEDs on the control panel. Are the LEDs on? | Go to step 4. | Go to step 9. |
Step 4 Check the ribbon cable connection on the control panel and controller board. Is the cable properly connected at both ends? | Go to step 6. | Go to step 5. |
Step 5 Reconnect the cable. Does the problem remain? | Go to step 6. | The problem is solved. |
Step 6 Check the cable for damage, and replace if necessary. Does the problem remain? | Go to step 7. | The problem is solved. |
Step 7 Replace the control panel cable. Does the problem remain? | Go to step 8. | The problem is solved. |
Step 8 Replace the control panel. See Control panel removal. Does the problem remain? | Go to step 12. | The problem is solved. |
Step 9 Disconnect the LVPS cable from the controller board, and then measure the voltages of the red and orange wires. Is the reading on the red wire +6.5
V, and the orange wire +25
V? | Go to step 12. | Go to step 10. |
Step 10 Replace the LVPS cable. Does the problem remain? | Go to step 11. | The problem is solved. |
Step 11 Replace the LVPS. See LVPS removal. Does the problem remain? | Go to step 12. | The problem is solved. |
Step 12 Replace the controller board. See Controller board removal. Does the problem remain? | Contact the next level of support. | The problem is solved. |