• Code: 10.1001
• Display: 10.XXXX Supply Error Reinstall
• Description: The printer cannot read or write to at least one print cartridge memory tag, or at least one memory tag is missing.
  Cyan e-label missing
• Remedy: 1. Open the front door. 2. Remove the print cartridges, and then reinstall them. 3. Close the front door. 4. Turn the printer off and then on. 5. Clean the memory controller PCA contacts to the memory tag if they are dirty. 6. Replace the memory controller PCA if necessary. 7. Replace the DC controller PCA if necessary.

• Code: 10.1002
• Display: 10.XXXX Supply Error Reinstall
• Description: The printer cannot read or write to at least one print cartridge memory tag, or at least one memory tag is missing.
  Magenta e-label missing
• Remedy: 1. Open the front door. 2. Remove the print cartridges, and then reinstall them. 3. Close the front door. 4. Turn the printer off and then on. 5. Clean the memory controller PCA contacts to the memory tag if they are dirty. 6. Replace the memory controller PCA if necessary. 7. Replace the DC controller PCA if necessary.

• Code: 10.1003
• Display: 10.XXXX Supply Error Reinstall
• Description: The printer cannot read or write to at least one print cartridge memory tag, or at least one memory tag is missing.
  Yellow e-label missing
• Remedy: 1. Open the front door. 2. Remove the print cartridges, and then reinstall them. 3. Close the front door. 4. Turn the printer off and then on. 5. Clean the memory controller PCA contacts to the memory tag if they are dirty. 6. Replace the memory controller PCA if necessary. 7. Replace the DC controller PCA if necessary.

• Code: 49
• Display: 49 Error Turn off then on
• Description: A critical firmware error has occurred.
• Remedy: 1. Turn the printer off and then on. 2. Try printing a job from a different program. If the job prints, try printing a different file from the original program. If the message appears only with a certain program or print job, contact the software vendor for assistance. 3. If the message persists with different programs and print jobs, disconnect all of the printer cables that connect to the network or the computer. 4. Turn the printer off. 5. Remove all memory DIMMs or thirdparty DIMMs from the printer. (Do not remove the firmware DIMM in the lower slot J1). 6. Remove the printer EIO card. 7. Turn the printer on. 8. If the error does not persist, install each DIMM and EIO device one at a time. Turn the printer off and then on again after installing each device. 9. Replace DIMMs and EIO devices as necessary. 10. Reconnect all of the printer cables. 11. If the error persists, replace the firmware DIMM. 12. Replace the formatter and calibrate the printer.

• Code: 50.1
• Display: 50.X Fuser Error Turn off then on
• Description: A fuser error has occurred.
  Low fuser temperature
• Remedy: 1. Verify the fuser is installed correctly and fully seated. 2. Check that connector J6007 on the fuser is seated correctly. Replace the connector as necessary. 3. Turn off the printer. 4. Remove the fuser. 5. If there is no conduction in the main thermistor, measure the resistance between fuser connectors J6007LA-1 and J6007LA-3. If the resistance is not 100 kohms to 3 Mohms, replace the fuser. 6. If there is no conduction in the fuser heater, measure the resistance between fuser connectors J6007LAF-1 and J6007-2. If the resistance is not 5 ohms to 1 kohms (100 to 127 V) or 20 ohms to 1 kohms (220 to 240 V), replace the fuser. 7. Replace the DC controller PCA.

• Code: 50.2
• Display: 50.X Fuser Error Turn off then on
• Description: A fuser error has occurred.
  Fuser-warmup service
• Remedy: 1. Verify the fuser is installed correctly and fully seated. 2. Check that connector J6007 on the fuser is seated correctly. Replace the connector as necessary. 3. Turn off the printer. 4. Remove the fuser. 5. If there is no conduction in the subthermistor, measure the resistance between fuser connectors J6007LA-2 and J6007LA-3. If the resistance is not 100 kohms to 3 Mohms, replace the fuser. 6. If there is no conduction in the fuser heater, measure the resistance between fuser connectors J6007LAF-1 and J6007-2. If the resistance is not 5 ohms to 1 kohms (100 to 127 V) or 20 ohms to 1 kohms (220 to 240 V), replace the fuser. 7. Replace the DC controller PCA.

• Code: 50.3
• Display: 50.X Fuser Error Turn off then on
• Description: A fuser error has occurred.
  High fuser temperature
• Remedy: 1. Verify the fuser is installed correctly and fully seated. 2. Check that connector J6007 on the fuser is seated correctly. Replace the connector as necessary. 3. Turn off the printer. 4. Remove the fuser. 5. Measure the resistance between fuser connectors J6007LA-1 and J6007LA-3. If the resistance is not 100 kohms to 3 Mohms, replace the fuser. 6. Replace the DC controller PCA.

• Code: 50.4
• Display: 50.X Fuser Error Turn off then on
• Description: A fuser error has occurred.
  Faulty fuser
• Remedy: 1. Improve the power supply if the power supply frequency is not 40 to 70 Hz. 2. Replace the low-voltage power-supply PCA. 3. Replace the DC controller PCA.