• Code: E3-40
• Description: Copy Density Sensor output adjustment
• Causes: 1. Sensor connector is disconnected. 2. Sensor is defective. 3. SPC PCB connector is disconnected. 4. SPC PCB is defective.

• Code: E3-51
• Description: Corona Wire cleaning
• Causes: 1. Cleaner Home Position Sensor 1 connector is disconnected. 2. Cleaner Home Position Sensor 1 is defective. 3. Cleaner Home Position Sensor 2 connector is disconnected. 4. Cleaner Home Position Sensor 2 is defective. 5. Cleaner Motor Drive Mechanism is defective. 6. Corona Mechanism is defective. 7. Cleaner Motor connector is disconnected. 8. Cleaner Motor is defective. 9. DRV PCB connector is disconnected. 10. DRV PCB is defective. 11. SPC PCB connector is disconnected. 12. SPC PCB is defective. 13. LVPS is defective.

• Code: E3-60
• Description: Toner Waste collection
• Causes: 1. Toner Waste is clogged up in the pipe. 2. Toner Waste Mechanism is defective. (Refer to Flow Chart Below) 3. Lock Detect Sensor connector is disconnected. 4. Lock Detect Sensor is defective. 5. DRV PCB connector is disconnected. 6. DRV PCB is defective. 7. SPC PCB connector is disconnected. 8. SPC PCB is defective.

• Code: E4-01
• Description: Fuser Warm-up Temperature
• Causes: 1. Fuser Thermistor is dirty. 2. Thermistor position is incorrect. 3. Fuser temperature is low. (Adjust F6-31) 4. Thermistor is defective. 5. Fuser Lamp connector is disconnected. 6. Fuser Thermostat is defective. 7. Fuser Lamp is defective. 8. HTC PCB connector is disconnected. 9. HTC PCB is defective.

• Code: E4-02
• Description: Paper Jam
• Causes: 1. Paper Jam in Fuser Unit. 2. Paper Exit Sensor 1 or 2 is disconnected. 3. Paper Exit Sensor 1 or 2 is defective. 4. DRV PCB connector is disconnected. 5. DRV PCB is defective. 6. SPC PCB connector is disconnected. 7. SPC PCB is defective.

• Code: E4-10
• Description: Exhaust Fan Motor (1) rotation
• Causes: 1. Exhaust Fan connector is disconnected. 2. Exhaust Fan is defective. 3. LVPS connector is disconnected. 4. LVPS is defective. 5. LPC PCB is defective.

• Code: E4-11
• Description: Exhaust Fan Motor (2) rotation
• Causes: 1. Exhaust Fan connector is disconnected. 2. Exhaust Fan is defective. 3. LVPS connector is disconnected. 4. LVPS is defective. 5. LPC PCB is defective.

• Code: E4-12
• Description: Exhaust Fan Motor (3) rotation
• Causes: 1. Exhaust Fan connector is disconnected. 2. Exhaust Fan is defective. 3. LVPS connector is disconnected. 4. LVPS is defective. 5. LPC PCB is defective.