Panasonic DP1520P

• Code: E3-03
• Description: Toner Density Sensor Gain
• Causes: 1. Sensor connector disconnected. 2. Sensor defective. 3. SPC PCB connector disconnected. 4. SPC PCB defective.

• Code: E3-10
• Description: High Voltage Power Supply leak (1) - Grid Charge Voltage
• Causes: 1. PS connector disconnected. 2. PS defective. 3. SPC PCB connector disconnected. 4. SPC PCB defective. 5. Corona Wire is abnormal. (Check for: contamination with foreign particles, broken, not installed in the proper position or loose tension)

• Code: E3-20
• Description: Main Motor Rotation
• Causes: 1. Drive Mechanism defective. 2. Main Motor connector disconnected. 3. Main Motor defective. 4. SPC PCB connector disconnected. 5. SPC PCB defective. 6. PS defective.

• Code: E4-01
• Description: Fuser Warm-up Temperature
• Causes: 1. Fuser Thermistor dirty. 2. Thermistor position incorrect. 3. Thermistor defective. 4. Thermistor connector disconnected. 5. Fuser Lamp connector disconnected. 6. Fuser Lamp defective. 7. Fuser Thermostat defective. 8. Thermal Fuse defective. 9. SPC PCB connector disconnected. 10. SPC PCB defective. 11. Fuser temperature low. (Adjust F6-31)

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

• Code: E4-10
• Description: Fuser Fan Motor Rotation
• Causes: 1. Fuser Fan connector disconnected. 2. Fuser Fan defective. 3. SPC PCB connector disconnected. 4. SPC PCB defective. 5. PS defective.