• Code: 840.03
• Description: The scanner is disabled and can’t be used. This message is posted when the MFP PORs. Enter the configuration menu, and reenable the scanner module.
• Remedy: Step 1: 1. POR the machine into Configuration menu >Disable Scanner. From there, select Enabled to change the setting to re-enable the scanner module, and then save the setting. 2. POR the MFP to operating mode. Try running a copy from the ADF and flatbed. Did the 840.xx error reoccur? Yes: Go to step 2. No: The problem is solved.
  Step 2: Re-enter the Configuration mode, and then scroll to and select the Disable Scanner menu item. Does the screen display ADF disabled or Auto Disabled? Yes: Go to step 3. No: Go to step 8.
  Step 3: Check the ADF cable connections on the ADF relay board and connector JADF1 on the controller board. Also inspect the cable connections JHOME1, JFBM1, JPLEN1, and JCIS1 on the controller board. Are the connections properly connected? Yes: Go to step 5. No: Go to step 4.
  Step 4: 1. Properly connect the connections on the ADF relay board and controller board. 2. POR the machine into Configuration menu >Disable Scanner. From there, select Enabled to change the setting to re-enable the scanner module and then save the setting. 3. POR the MFP to operating mode. Try running a copy from the ADF and the flatbed. Did the 840.xx error reoccur? Yes: Go to step 5. No: The problem is solved.
  Step 5: Check the continuity on the ADF cable. Is there continuity? Yes: Go to step 7. No: Go to step 6.
  Step 6: 1. Replace the ADF cable. 2. POR the machine into Configuration menu >Disable Scanner. From there, select Enabled to change the setting to re-enable the scanner module, and then save the setting. 3. POR the MFP to operating mode. Try running a copy from the ADF and flatbed. Did the 840.xx error reoccur? Yes: Go to step 7. No: The problem is solved.
  Step 7: 1. Replace the ADF unit. 2. POR the machine into Configuration menu >Disable Scanner. From there, select Enabled to change the setting to re-enable the scanner module and then save the setting. 3. POR the MFP to operating mode. Run a copy from the flatbed. Did the 840.xx error reoccur? Yes: Go to step 8. No: The problem is solved.
  Step 8: Inspect JFBM1, JHOME1 and JCIS1 on the controller board. Are they properly connected? Yes: Go to step 10. No: Go to step 9.
  Step 9: Properly connect all the connections. Did the 840.xx error reoccur? Yes: The problem is solved. No: Go to step 10.
  Step 10: 1. Replace the flatbed unit. 2. POR the machine into Configuration menu >Disable Scanner. From there, select Enabled to change the setting to re-enable the scanner module, and then save the setting. 3. POR the MFP to operating mode. Run a copy from the flatbed. Did the 840.xx error reoccur? Yes: Go to step 11. No: The problem is solved.
  Step 11: Replace the controller board. Yes: The problem is solved. No: Contact second-level support.

• Code: 841.xx
• Description: Scanner failure - front side image processing ASIC. Invalid configuration or ASIC not found?
• Remedy: Step 1: Restart the device, and then retry the scan / copy job. Repeat this step with a few copy jobs. Does the error return? Yes: Go to step 2. No: No issue.
  Step 2: Is the CCD ribbon cable properly connected to JCIS1 on the controller board? Yes: Go to step 3. No: Properly connect cable to JCIS1.
  Step 3: Replace the flatbed unit. Did this resolve the issue? Yes: The problem is solved. No: Replace the controller board.

• Code: 842.xx
• Description: Scanner failure - communications
• Remedy: Step 1: Restart the device, and then retry the scan / copy job. Repeat this step with a few copy jobs. Does the error return? Yes: Go to step 2. No: No issue.
  Step 2: Is the CCD ribbon cable properly connected to JCIS1 on the controller board? Yes: Go to step 3. No: Properly connect cable to JCIS1.
  Step 3: Replace the flatbed unit. Did this resolve the issue? Yes: The problem is solved. No: Replace the controller board.

• Code: 843.00
• Description: Scanner Failure - carriage failed to Home or move to desired position
• Remedy: Step 1: Check all cables connecting the ADF and flatbed to the controller board. Are they properly connected? Yes: Go to step 3. No: Go to step 2.
  Step 2: Re-connect the cables to the controller board. Did this fix the problem? Yes: The problem is solved. No: Go to step 3.
  Step 3: 1. Enter diagnostics mode and navigate to: SCANNER TESTS >Sensor Test Perform the scanner sensor tests. 2. Navigate to: SCANNER TESTS >Motor Tests Perform the scanner sensor and motor tests. Did any test fail? Yes: Go to step 4. No: Go to step 8.
  Step 4: Did the Flatbed Home Sensor test or Flatbed motor test fail? Yes: Go step 5. No: Go to step 6.
  Step 5: Replace the flatbed. Did this solve the problem? Yes: The problem is solved. No: Go to step 6.
  Step 6: Did the ADF pick motor or feed motor tests fail? Yes: Go to step 7. No: Go to step 8.
  Step 7: Replace the ADF. Did this fix the problem? Yes: The problem is solved. No: Go to step 8.
  Step 8: Replace the controller board. Did this fix the problem? Yes: The problem is solved. No: Contact the next level of support.

• Code: 843.01
• Description: ADF mechanical failure
• Remedy: Step 1: Check all cables connecting the ADF and flatbed to the controller board. Are they properly connected? Yes: Go to step 3. No: Go to step 2.
  Step 2: Re-connect the cables to the controller board. Did this fix the problem? Yes: The problem is solved. No: Go to step 3.
  Step 3: 1. Enter diagnostics mode and navigate to: SCANNER TESTS >Sensor Test Perform the scanner sensor tests. 2. Navigate to: SCANNER TESTS >Motor Tests Perform the scanner sensor and motor tests. Did any test fail? Yes: Go to step 4. No: Go to step 8.
  Step 4: Did the Flatbed Home Sensor test or Flatbed motor test fail? Yes: Go step 5. No: Go to step 6.
  Step 5: Replace the flatbed. Did this solve the problem? Yes: The problem is solved. No: Go to step 6.
  Step 6: Did the ADF pick motor or feed motor tests fail? Yes: Go to step 7. No: Go to step 8.
  Step 7: Replace the ADF. Did this fix the problem? Yes: The problem is solved. No: Go to step 8.
  Step 8: Replace the controller board. Did this fix the problem? Yes: The problem is solved. No: Contact the next level of support.

• Code: 843.02
• Description: Generic Mechanical failure detected
• Remedy: Step 1: Check all cables connecting the ADF and flatbed to the controller board. Are they properly connected? Yes: Go to step 3. No: Go to step 2.
  Step 2: Re-connect the cables to the controller board. Did this fix the problem? Yes: The problem is solved. No: Go to step 3.
  Step 3: 1. Enter diagnostics mode and navigate to: SCANNER TESTS >Sensor Test Perform the scanner sensor tests. 2. Navigate to: SCANNER TESTS >Motor Tests Perform the scanner sensor and motor tests. Did any test fail? Yes: Go to step 4. No: Go to step 8.
  Step 4: Did the Flatbed Home Sensor test or Flatbed motor test fail? Yes: Go step 5. No: Go to step 6.
  Step 5: Replace the flatbed. Did this solve the problem? Yes: The problem is solved. No: Go to step 6.
  Step 6: Did the ADF pick motor or feed motor tests fail? Yes: Go to step 7. No: Go to step 8.
  Step 7: Replace the ADF. Did this fix the problem? Yes: The problem is solved. No: Go to step 8.
  Step 8: Replace the controller board. Did this fix the problem? Yes: The problem is solved. No: Contact the next level of support.

• Code: 843.03
• Description: Pick Roller Engage Failure
• Remedy: Step 1: Check all cables connecting the ADF and flatbed to the controller board. Are they properly connected? Yes: Go to step 3. No: Go to step 2.
  Step 2: Re-connect the cables to the controller board. Did this fix the problem? Yes: The problem is solved. No: Go to step 3.
  Step 3: 1. Enter diagnostics mode and navigate to: SCANNER TESTS >Sensor Test Perform the scanner sensor tests. 2. Navigate to: SCANNER TESTS >Motor Tests Perform the scanner sensor and motor tests. Did any test fail? Yes: Go to step 4. No: Go to step 8.
  Step 4: Did the Flatbed Home Sensor test or Flatbed motor test fail? Yes: Go step 5. No: Go to step 6.
  Step 5: Replace the flatbed. Did this solve the problem? Yes: The problem is solved. No: Go to step 6.
  Step 6: Did the ADF pick motor or feed motor tests fail? Yes: Go to step 7. No: Go to step 8.
  Step 7: Replace the ADF. Did this fix the problem? Yes: The problem is solved. No: Go to step 8.
  Step 8: Replace the controller board. Did this fix the problem? Yes: The problem is solved. No: Contact the next level of support.

• Code: 843.04
• Description: Pick Roller Disengage Failure
• Remedy: Step 1: Check all cables connecting the ADF and flatbed to the controller board. Are they properly connected? Yes: Go to step 3. No: Go to step 2.
  Step 2: Re-connect the cables to the controller board. Did this fix the problem? Yes: The problem is solved. No: Go to step 3.
  Step 3: 1. Enter diagnostics mode and navigate to: SCANNER TESTS >Sensor Test Perform the scanner sensor tests. 2. Navigate to: SCANNER TESTS >Motor Tests Perform the scanner sensor and motor tests. Did any test fail? Yes: Go to step 4. No: Go to step 8.
  Step 4: Did the Flatbed Home Sensor test or Flatbed motor test fail? Yes: Go step 5. No: Go to step 6.
  Step 5: Replace the flatbed. Did this solve the problem? Yes: The problem is solved. No: Go to step 6.
  Step 6: Did the ADF pick motor or feed motor tests fail? Yes: Go to step 7. No: Go to step 8.
  Step 7: Replace the ADF. Did this fix the problem? Yes: The problem is solved. No: Go to step 8.
  Step 8: Replace the controller board. Did this fix the problem? Yes: The problem is solved. No: Contact the next level of support.