• Code: 09
• Display: DENSITY SENSOR ABNORMALITY WARNING
• Description: DENSITY SENSOR ABNORMALITY WARNING
• Remedy: 1) Poor contact in the density sensor connector Action: Reconnect the J81 on the density detection PCB and J109 on the DC controller PCB. 2) Defective Density sensor Action: Replace the density detection PCB. 3) Defective DC controller PCB Action: Replace it.

• Code: E000
• Display: E000
• Description: Fixing Unit Failure (start-up failure)
• Remedy: 1) Broken main thermistor Action: Measure resistance between J119-4 and J119-5 on the DC controller PCB. If the result is not within about 350 kÙ to 520 kÙ (at room temperature of 25 °C), check cables from the J201 for the fixing unit to J205 for the sub thermistor. If nothing is wrong with the cables, replace the fixing film unit. 2) Broken sub thermistor Action: Measure resistance between J119-2 and J119-3 on the DC controller PCB. If the result is not within about 360 K to 530 k (at room temperature of 25 °C), check cables from the J201 for the fixing unit and J205 for the sub thermistor. If nothing is wrong with the cables, replace the fixing film unit. 3) Broken fixing heater Action: If the connector for the power supply unit between J302-1 and J302-3 has no continuity, replace the fixing film unit. 4) Poor contact in connectors Action: Reconnect the J119 on the DC controller, J302 for the power supply unit, and J201 for the fixing unit. 5) Defective power supply unit Action: Replace it. 6) Defective DC controller PCB Action: Replace it.

• Code: E001
• Display: E001
• Description: Fixing Unit Failure (Abnormally high temperature)
• Remedy: 1) Shorted main thermistor Action: Measure resistance between the J119-4 and J119-5 on the DC controller PCB. If resistance is not within 350 kÙ to 520 kÙ (at room temperature of 25 °C), check the cables from the J201 for the fixing unit to J204 for the main thermistor. If nothing is wrong with the cables, replace the fixing film unit. 2) Shorted sub thermistor Action: Measure resistance between the J119-2 and J119-3 on the DC controller PCB. If resistance is not within 360 k to 530 k (at room temperature of 25 °C),check the cables from the J201 for the fixing unit to J205 for the sub thermistor. If nothing is wrong with the cables, replace the fixing film unit. 3) Defective power supply unit Action: Replace it. 4) Defective DC controller PCB Action: Replace it.

• Code: E002
• Display: E002
• Description: Fixing Unit Failure (abnormally low temperature)
• Remedy: 1) Broken main thermistor Action: Measure resistance between the J119-4 and J119-5 on the DC controller PCB. If the result is not within 350 k to 520 k (at room temperature of 25 °C), check the cables from the J201 for the fixing unit to J204 for the sub thermistor. If nothing is wrong with it, replace the fixing film unit. 2) Broken sub thermistor Action: Measure resistance between the J119-2 and J119-3 on the DC controller PCB. If the result is not within 360 k to 530 k (at room temperature of 25 °C), check the cables from the J201 for the fixing unit to J205 for the sub thermistor. If nothing is wrong with the cables, replace the fixing film unit. 3) Broken fixing heater Action: If the connector for the power supply unit has no continuity between J302-1 and J302-3, replace the fixing film unit. 4) Poor contact in connectors Action: Reconnect the J119 on the DC controller PCB, J302 for the power supply unit, and J201 for the fixing unit. 5) Defective power supply unit Action: Replace it. 6) Defective DC controller PCB Action: Replace it.

• Code: E010
• Display: E010
• Description: Main Motor Failure
• Remedy: 1) Poor contact in the main motor drive connector Action: Reconnect the connector J701 for the main motor and J105 on the DC controller. 2) Defective main motor Action: Replace it. 3) Defective DC controller PCB Action: Replace it.

• Code: E021
• Display: E021
• Description: Developing rotary motor failure
• Remedy: 1) Poor contact in the developing rotary motor drive connector Action: Reconnect the J105 on the DC controller. 2) Defective developing rotary motor Action: Replace it. 3) Defective DC controller PCB Action: Replace it.

• Code: E022
• Display: E022
• Description: Developing Rotary engaging rotary mechanism abnormality
• Remedy: 1) Poor contact in the developing rotary engaging sensor connector Action: Reconnect the J712 for the developing rotary engaging sensor and J125 on the DC controller PCB. 2) Poor contact in the engaging motor connector Action: Reconnect the J704 for the engaging motor and J123 on the DC controller. 3) Defective engaging cam Action: Replace the developing rotary engaging unit. 4) Defective developing rotary engaging sensor Action: Replace the developing rotary engaging unit. 5) Defective engaging motor Action: Replace it. 6) Defective DC controller PCB Action: Replace it.

• Code: E071
• Display: E071
• Description: ITB Home-Position Sensor Failure
• Remedy: 1) Poor contact in the ITB home position sensor connector Action: Reconnect the J71 on the ITB home position detection PCB and J109 on the DC controller PCB. 2) Defective ITB home position sensor Action: Replace the ITB home position detection PCB. 3) Defective DC controller PCB Action: Replace it.