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.
Code: 50.7
Display: 50.X Fuser Error Turn off then on
Description: A fuser error has occurred.
Fuser pressure release mechanism failure
Remedy: 1. Verify the fuser is installed correctly and fully seated. 2. Check that fuser connector J705, fuser motor connector J5008, and driver PCA connector J213 are seated correctly. 3. Replace the fuser drive assembly. 4. Replace the DC controller PCA.
Code: 50.8
Display: 50.X Fuser Error Turn off then on
Description: A fuser error has occurred.
Low fuser temperature (subthermistor)
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-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.