• Code: 230.x2
• Description: 230.12 Paper fed from tray 1 was detected earlier than expected at the sensor (duplex path 1). 230.22 Paper fed from tray 2 was detected earlier than expected at the sensor (duplex path 1). 230.32 Paper fed from tray 3 was detected earlier than expected at the sensor (duplex path 1). 230.42 Paper fed from tray 4 was detected earlier than expected at the sensor (duplex path 1).
• Remedy: Step 1 a From the home screen, touch Settings > Device > Preferences. b Check if the paper size matches the size set on the tray guides. Does the paper size match the size set on the tray? Go to step 3. Go to step 2. Step 2 Change the paper size or adjust the size setting in the tray. Does the problem remain? Go to step 3. The problem is solved. Step 3 Check the paper path entering the duplex path for paper jams and fragments. Is the paper path free of fragments and contamination? Go to step 5. Go to step 4. Step 4 Remove the paper jams and fragments. Does the problem remain? Go to step 5. The problem is solved. Step 5 Perform a print job. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 230.x3
• Description: 230.13 Paper fed from tray 1 never arrived at the sensor (duplex path 1). 230.23 Paper fed from tray 2 never arrived at the sensor (duplex path 1). 230.33 Paper fed from tray 3 never arrived at the sensor (duplex path 1). 230.43 Paper fed from tray 4 never arrived at the sensor (duplex path 1).
• Remedy: Step 1 a From the home screen, touch Settings > Device > Preferences. b Check if the paper size matches the size set on the tray guides. Does the paper size match the size set on the tray? Go to step 3. Go to step 2. Step 2 Change the paper size or adjust the size setting in the tray. Does the problem remain? Go to step 3. The problem is solved. Step 3 Check the redrive paper path for paper jams and obstructions. Is the paper path free of jams and obstructions? Go to step 5. Go to step 4. Step 4 Remove the jams and obstructions. Does the problem remain? Go to step 5. The problem is solved. Step 5 Check the duplex paper path for paper jams and obstructions. Is the paper path free of jams and obstructions? Go to step 7. Go to step 6. Step 6 Remove the jams and obstructions. Does the problem remain? Go to step 7. The problem is solved. Step 7 Check the diverter for smooth movement. Does the diverter freely move witthout interference? Go to step 9. Go to step 8. Step 8 Replace the diverter. See “Diverter removal”. Does the problem remain? Go to step 9. The problem is solved. Step 9 a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Sensor tests b Find the sensor (Duplex path 1). Does the sensor status change while toggling the sensor? Go to step 11. Go to step 10. Step 10 Replace the sensor. Does the problem remain? Go to step 11. The problem is solved. Step 11 a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Motor tests > Redrive b Select a setting, and then touch Start. Does the motor run? Go to step 13. Go to step 12. Step 12 Check the cable on the JOUTDC connector on the controller board for proper connection and damage, and replace if necessary. Does the problem remain? Go to step 13. The problem is solved. Step 13 Replace the motor (output). See “Motor (output) removal”. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 230.x4
• Description: 230.14 Paper fed from tray 1 cleared the sensor (duplex path 1) earlier than expected. 230.24 Paper fed from tray 2 cleared the sensor (duplex path 1) earlier than expected. 230.34 Paper fed from tray 3 cleared the sensor (duplex path 1) earlier than expected. 230.44 Paper fed from tray 4 cleared the sensor (duplex path 1) earlier than expected.
• Remedy: Step 1 a From the home screen, touch Settings > Device > Preferences. b Check if the paper size matches the size set on the tray guides. Does the paper size match the size set on the tray? Go to step 3. Go to step 2. Step 2 Change the paper size or adjust the size setting in the tray. Does the problem remain? Go to step 3. The problem is solved. Step 3 Check the duplex rollers for damage. Are the rollers free of damage? Go to step 5. Go to step 4. Step 4 Replace the duplex assembly. Does the problem remain? Go to step 5. The problem is solved. Step 5 a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Sensor tests b Find the sensor (Duplex path 1). Does the sensor status change while toggling the sensor? Go to step 8. Go to step 6. Step 6 Check the sensor cable for proper connection, and then reseat if necessary. Does the problem remain? Go to step 7. The problem is solved. Step 7 Replace the sensor. Does the problem remain? Go to step 8. The problem is solved. Step 8 Perform a print job. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 230.x5
• Description: 230.15 Paper fed from tray 1 never cleared the sensor (duplex path 1). 230.25 Paper fed from tray 2 never cleared the sensor (duplex path 1). 230.35 Paper fed from tray 3 never cleared the sensor (duplex path 1). 230.45 Paper fed from tray 4 never cleared the sensor (duplex path 1).
• Remedy: Step 1 a From the home screen, touch Settings > Device > Preferences. b Check if the paper size matches the size set on the tray guides. Does the paper size match the size set on the tray? Go to step 3. Go to step 2. Step 2 Change the paper size or adjust the size setting in the tray. Does the problem remain? Go to step 3. The problem is solved. Step 3 Check if the paper size matches the size set on the tray guides. Does the paper size match the size set on the tray? Go to step 5. Go to step 4. Step 4 Change the paper size or adjust the size setting in the tray. Does the problem remain? Go to step 5. The problem is solved. Step 5 Check the paper path for paper jams and obstructions. Is the paper path free of jams and obstructions? Go to step 7. Go to step 6. Step 6 Remove the jams and obstructions. Does the problem remain? Go to step 7. The problem is solved. Step 7 a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Sensor tests b Find the sensor (Duplex path 1). Does the sensor status change while toggling the sensor? Go to step 10. Go to step 8. Step 8 Check the sensor cable for proper connection and damage, and replace if necessary. Does the problem remain? Go to step 9. The problem is solved. Step 9 Check the sensor for damage, and replace if necessary. Does the problem remain? Go to step 10. The problem is solved. Step 10 a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Motor tests > Duplex/MPF b Select a setting, and then touch Start. Does the motor run? Contact the next level of support. Go to step 11. Step 11 Check the motor cable for proper connection and damage, and replace if necessary. Does the problem remain? Go to step 12. The problem is solved. Step 12 a Replace the motor. See “Motor (duplex/MPF) removal”. b Perform a print job. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 231.91
• Description: Paper remains detected at the sensor (duplex path 2) after the printer is turned on.
• Remedy: Step 1 a From the home screen, touch Settings > Device > Preferences. b Check if the paper size matches the size set on the tray guides. Does the paper size match the size set on the tray? Go to step 3. Go to step 2. Step 2 Change the paper size or adjust the size setting in the tray. Does the problem remain? Go to step 3. The problem is solved. Step 3 Check the paper path for partially fed or jammed paper. Is the paper path free of partially fed or jammed paper? Go to step 5. Go to step 4. Step 4 Remove the partially fed or jammed paper. Does the problem remain? Go to step 5. The problem is solved. Step 5 a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Sensor tests b Find the sensor (Duplex path 2). Does the sensor status change while toggling the sensor? Contact the next level of support. Go to step 6. Step 6 Check the sensor cable for proper connection and damage, and replace if necessary. Does the problem remain? Go to step 7. The problem is solved. Step 7 a Check the sensor for damage, and replace if necessary. b Perform a print job. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 231.x2, 231.x3
• Description: 231.12 Paper fed from tray 1 was detected earlier than expected at the sensor (duplex path 2). 231.13 Paper fed from tray 1 never arrived at the sensor (duplex path 2). 231.22 Paper fed from tray 2 was detected earlier than expected at the sensor (d uplex path 2). 231.23 Paper fed from tray 2 never arrived at the sensor (duplex path 2). 231.32 Paper fed from tray 3 was detected earlier than expected at the sensor (duplex path 2). 231.33 Paper fed from tray 3 never arrived at the sensor (duplex path 2). 231.43 Paper fed from tray 4 never arrived at the sensor (duplex path 2).
• Remedy: Step 1 a From the home screen, touch Settings > Device > Preferences. b Check if the paper size matches the size set on the tray guides. Does the paper size match the size set on the tray? Go to step 3. Go to step 2. Step 2 Change the paper size or adjust the size setting in the tray. Does the problem remain? Go to step 3. The problem is solved. Step 3 Check the duplex paper path for paper jams and obstructions. Is the paper path free of jams and obstructions? Go to step 5. Go to step 4. Step 4 Remove the jams and obstructions. Does the problem remain? Go to step 5. The problem is solved. Step 5 a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Sensor tests b Find the sensor (Duplex path 2). Does the sensor status change while toggling the sensor? Go to step 8. Go to step 6. Step 6 Check the sensor cable for proper connection and damage, and replace if necessary. Does the problem remain? Go to step 7. The problem is solved. Step 7 Check the sensor for damage, and replace if necessary. Does the problem remain? Go to step 8. The problem is solved. Step 8 a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Motor tests > Duplex/MPF b Select a setting, and then touch Start. Does the motor run? Go to step 11. Go to step 9. Step 9 Check the motor cable for proper connection and damage, and replace if necessary. Does the problem remain? Go to step 10. The problem is solved. Step 10 a Replace the motor. See “Motor (duplex/MPF) removal”. b Perform a print job. Does the problem remain? Go to step 11. The problem is solved. Step 11 Check the duplex drive gears in the printer for damage, and replace if necessary. Does the problem remain? Go to step 12. The problem is solved. Step 12 a In the duplex inner guide, check the drive gears, belts, and pinch rollers for damage. Replace the duplex inner guide if necessary. See “Duplex inner guide removal”. b Perform a print job. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 231.x4
• Description: 231.14 Paper fed from tray 1 cleared the sensor (duplex path 2) earlier than expected. 231.24 Paper fed from tray 2 cleared the sensor (duplex path 2) earlier than expected. 231.34 Paper fed from tray 3 cleared the sensor (duplex path 2) earlier than expected. 231.44 Paper fed from tray 4 cleared the sensor (duplex path 2) earlier than expected.
• Remedy: Step 1 a From the home screen, touch Settings > Device > Preferences. b Check if the paper size matches the size set on the tray guides. Does the paper size match the size set on the tray? Go to step 3. Go to step 2. Step 2 Change the paper size or adjust the size setting in the tray. Does the problem remain? Go to step 3. The problem is solved. Step 3 Check the duplex rollers for damage. Are the rollers free of damage? Go to step 5. Go to step 4. Step 4 Replace the duplex. Does the problem remain? Go to step 5. The problem is solved. Step 5 a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Sensor tests b Find the sensor (Duplex path 2). Does the sensor status change while toggling the sensor? Go to step 8. Go to step 6. Step 6 Check the sensor cable for proper connection, and then reseat if necessary. Does the problem remain? Go to step 7. The problem is solved. Step 7 Check the sensor for damage, and replace if necessary. Does the problem remain? Go to step 8. The problem is solved. Step 8 Perform a print job. Does the problem remain? Contact the next level of support. The problem is solved.

• Code: 232.91
• Description: Paper remains detected at the sensor (duplex path 2) after the printer is turned on.
• Remedy: Step 1 a From the home screen, touch Settings > Device > Preferences. b Check if the paper size matches the size set on the tray guides. Does the paper size match the size set on the tray? Go to step 3. Go to step 2. Step 2 Change the paper size or adjust the size setting in the tray. Does the problem remain? Go to step 3. The problem is solved. Step 3 Check the paper path for partially fed or jammed paper. Is the paper path free of partially fed or jammed paper? Go to step 5. Go to step 4. Step 4 Remove the partially fed or jammed paper. Does the problem remain? Go to step 5. The problem is solved. Step 5 a Enter the Diagnostics menu, and then navigate to: Printer diagnostics & adjustments > Sensor tests b Find the sensor (Duplex path 2). Does the sensor status change while toggling the sensor? Contact the next level of support. Go to step 6. Step 6 Check the sensor cable for proper connection and damage, and replace if necessary. Does the problem remain? Go to step 7. The problem is solved. Step 7 a Check the sensor for damage, and replace if necessary. b Perform a print job. Does the problem remain? Contact the next level of support. The problem is solved.